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| * perf script: Check session->header.env.arch before using itSong Liu2021-10-311-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When perf.data is not written cleanly, we would like to process existing data as much as possible (please see f_header.data.size == 0 condition in perf_session__read_header). However, perf.data with partial data may crash perf. Specifically, we see crash in 'perf script' for NULL session->header.env.arch. Fix this by checking session->header.env.arch before using it to determine native_arch. Also split the if condition so it is easier to read. Committer notes: If it is a pipe, we already assume is a native arch, so no need to check session->header.env.arch. Signed-off-by: Song Liu <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* | perf script: Support instruction latencyKan Liang2021-10-281-2/+12
|/ | | | | | | | | | | | | | | | | | | The instruction latency information can be recorded on some platforms, e.g., the Intel Sapphire Rapids server. With both memory latency (weight) and the new instruction latency information, users can easily locate the expensive load instructions, and also understand the time spent in different stages. The users can optimize their applications in different pipeline stages. Add a new field "ins_lat" to filter the instruction latency information, which is available with sample type PERF_SAMPLE_WEIGHT_STRUCT. Signed-off-by: Kan Liang <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Joe Mario <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Fix ip display when type != attr->typeAdrian Hunter2021-09-181-11/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_print_ip_opts() was not being called when type != attr->type because there is not a one-to-one relationship between output types and attr->type. That resulted in ip not printing. The attr_type() function is removed, and the match of attr->type to output type is corrected. Example on ADL using taskset to select an atom cpu: # perf record -e cpu_atom/cpu-cycles/ taskset 0x1000 uname Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.003 MB perf.data (7 samples) ] Before: # perf script | head taskset 428 [-01] 10394.179041: 1 cpu_atom/cpu-cycles/: taskset 428 [-01] 10394.179043: 1 cpu_atom/cpu-cycles/: taskset 428 [-01] 10394.179044: 11 cpu_atom/cpu-cycles/: taskset 428 [-01] 10394.179045: 407 cpu_atom/cpu-cycles/: taskset 428 [-01] 10394.179046: 16789 cpu_atom/cpu-cycles/: taskset 428 [-01] 10394.179052: 676300 cpu_atom/cpu-cycles/: uname 428 [-01] 10394.179278: 4079859 cpu_atom/cpu-cycles/: After: # perf script | head taskset 428 10394.179041: 1 cpu_atom/cpu-cycles/: ffffffff95a0bb97 __intel_pmu_enable_all.constprop.48+0x47 ([kernel.kallsyms]) taskset 428 10394.179043: 1 cpu_atom/cpu-cycles/: ffffffff95a0bb97 __intel_pmu_enable_all.constprop.48+0x47 ([kernel.kallsyms]) taskset 428 10394.179044: 11 cpu_atom/cpu-cycles/: ffffffff95a0bb97 __intel_pmu_enable_all.constprop.48+0x47 ([kernel.kallsyms]) taskset 428 10394.179045: 407 cpu_atom/cpu-cycles/: ffffffff95a0bb97 __intel_pmu_enable_all.constprop.48+0x47 ([kernel.kallsyms]) taskset 428 10394.179046: 16789 cpu_atom/cpu-cycles/: ffffffff95a0bb97 __intel_pmu_enable_all.constprop.48+0x47 ([kernel.kallsyms]) taskset 428 10394.179052: 676300 cpu_atom/cpu-cycles/: 7f829ef73800 cfree+0x0 (/lib/libc-2.32.so) uname 428 10394.179278: 4079859 cpu_atom/cpu-cycles/: ffffffff95bae912 vma_interval_tree_remove+0x1f2 ([kernel.kallsyms]) Signed-off-by: Adrian Hunter <[email protected]> Reviewed-by: Kan Liang <[email protected]> Cc: Jin Yao <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script python: Allow reporting the [un]throttle PERF_RECORD_ meta eventStephen Brennan2021-09-031-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | perf_events may sometimes throttle an event due to creating too many samples during a given timer tick. As of now, the perf tool will not report on throttling, which means this is a silent error. Implement a callback for the throttle and unthrottle events within the Python scripting engine, which can allow scripts to detect and report when events may have been lost due to throttling. The simplest script to report throttle events is: def throttle(*args): print("throttle" + repr(args)) def unthrottle(*args): print("unthrottle" + repr(args)) Signed-off-by: Stephen Brennan <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Fix unnecessary machine_resolve()Adrian Hunter2021-08-111-1/+1
| | | | | | | | | | machine_resolve() may have already been called. Test for that to avoid calling it again unnecessarily. Signed-off-by: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https //lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf tools: Remove repipe argument from perf_session__new()Namhyung Kim2021-08-021-2/+2
| | | | | | | | | | | | | | | | | | The repipe argument is only used by perf inject and the all others passes 'false'. Let's remove it from the function signature and add __perf_session__new() to be called from perf inject directly. This is a preparation of the change the pipe input/output. Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] [ Fixed up some trivial conflicts as this patchset fell thru the cracks ;-( ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Fix memory 'threads' and 'cpus' leaks on exitRiccardo Mancini2021-07-151-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | ASan reports several memory leaks while running: # perf test "82: Use vfs_getname probe to get syscall args filenames" Two of these are caused by some refcounts not being decreased on perf-script exit, namely script.threads and script.cpus. This patch adds the missing __put calls in a new perf_script__exit function, which is called at the end of cmd_script. This patch concludes the fixes of all remaining memory leaks in perf test "82: Use vfs_getname probe to get syscall args filenames". Signed-off-by: Riccardo Mancini <[email protected]> Fixes: cfc8874a48599249 ("perf script: Process cpu/threads maps") Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/5ee73b19791c6fa9d24c4d57f4ac1a23609400d7.1626343282.git.rickyman7@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Release zstd dataRiccardo Mancini2021-07-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | ASan reports several memory leak while running: # perf test "82: Use vfs_getname probe to get syscall args filenames" One of the leaks is caused by zstd data not being released on exit in perf-script. This patch adds the missing zstd_fini(). Signed-off-by: Riccardo Mancini <[email protected]> Fixes: b13b04d9382113f7 ("perf script: Initialize zstd_data") Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Milian Wolff <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/39388e8cc2f85ca219ea18697a17b7bd8f74b693.1626343282.git.rickyman7@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* libperf: Move 'leader' from tools/perf to perf_evsel::leaderJiri Olsa2021-07-091-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move evsel::leader to perf_evsel::leader, so we can move the group interface to libperf. Also add several evsel helpers to ease up the transition: struct evsel *evsel__leader(struct evsel *evsel); - get leader evsel bool evsel__has_leader(struct evsel *evsel, struct evsel *leader); - true if evsel has leader as leader bool evsel__is_leader(struct evsel *evsel); - true if evsel is itw own leader void evsel__set_leader(struct evsel *evsel, struct evsel *leader); - set leader for evsel Committer notes: Fix this when building with 'make BUILD_BPF_SKEL=1' tools/perf/util/bpf_counter.c - if (evsel->leader->core.nr_members > 1) { + if (evsel->core.leader->nr_members > 1) { Signed-off-by: Jiri Olsa <[email protected]> Requested-by: Shunsuke Nakamura <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Add option to pass arguments to dlfiltersAdrian Hunter2021-07-011-1/+34
| | | | | | | | | | | | | | | | | Add option --dlarg to pass arguments to dlfilters. The --dlarg option can be repeated to pass more than 1 argument. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Add option to list dlfiltersAdrian Hunter2021-07-011-0/+2
| | | | | | | | | | | | | | | | | | Add option --list-dlfilters to list dlfilters in the current directory or the exec-path e.g. ~/libexec/perf-core/dlfilters. Use with option -v (must come before option --list-dlfilters) to show long descriptions. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Add dlfilter__filter_event_early()Adrian Hunter2021-07-011-8/+18
| | | | | | | | | | | | | | | | | | | filter_event_early() can be more than 30% faster than filter_event() because it is called before internal filtering. In other respects it is the same as filter_event(), except that it will be passed events that have yet to be filtered out. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Add API for filtering via dynamically loaded shared objectAdrian Hunter2021-07-011-1/+24
| | | | | | | | | | | | | | | | | | | | In some cases, users want to filter very large amounts of data (e.g. from AUX area tracing like Intel PT) looking for something specific. While scripting such as Python can be used, Python is 10 to 20 times slower than C. So define a C API so that custom filters can be written and loaded. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Share addr_al between functionsAdrian Hunter2021-06-221-14/+24
| | | | | | | | | | | | | | | | Share the addr_location of 'addr' so that it need not be resolved more than once. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Move filtering before scriptingAdrian Hunter2021-06-221-6/+6
| | | | | | | | | | | | | | | | To make it possible to use filtering with scripts, move filtering before scripting. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Move filter_cpu() earlierAdrian Hunter2021-06-221-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Generally, it should be more efficient if filter_cpu() comes before machine__resolve() because filter_cpu() is much less code than machine__resolve(). Example: $ perf record --sample-cpu -- make -C tools/perf >/dev/null Before: $ perf stat -- perf script -C 0 >/dev/null Performance counter stats for 'perf script -C 0': 116.94 msec task-clock # 0.992 CPUs utilized 2 context-switches # 17.103 /sec 0 cpu-migrations # 0.000 /sec 8,187 page-faults # 70.011 K/sec 478,351,812 cycles # 4.091 GHz 564,785,464 instructions # 1.18 insn per cycle 114,341,105 branches # 977.789 M/sec 2,615,495 branch-misses # 2.29% of all branches 0.117840576 seconds time elapsed 0.085040000 seconds user 0.032396000 seconds sys After: $ perf stat -- perf script -C 0 >/dev/null Performance counter stats for 'perf script -C 0': 107.45 msec task-clock # 0.992 CPUs utilized 3 context-switches # 27.919 /sec 0 cpu-migrations # 0.000 /sec 7,964 page-faults # 74.117 K/sec 438,417,260 cycles # 4.080 GHz 522,571,855 instructions # 1.19 insn per cycle 105,187,488 branches # 978.921 M/sec 2,356,261 branch-misses # 2.24% of all branches 0.108282546 seconds time elapsed 0.095935000 seconds user 0.011991000 seconds sys Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Factor out script_fetch_insn()Adrian Hunter2021-06-011-2/+8
| | | | | | | | | | Factor out script_fetch_insn() so it can be reused. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf scripting: Add perf_session to scripting_contextAdrian Hunter2021-06-011-1/+1
| | | | | | | | | | | This is preparation for allowing a script to set the itrace options for the session if they have not already been set. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf scripting python: Add auxtrace errorAdrian Hunter2021-05-251-0/+13
| | | | | | | | | | Add auxtrace_error to general python scripting. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Factor out perf_sample__sprintf_flags()Adrian Hunter2021-05-251-10/+18
| | | | | | | | | | Factor out perf_sample__sprintf_flags() so it can be reused. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf scripting python: Add 'addr_location' for 'addr'Adrian Hunter2021-05-251-3/+12
| | | | | | | | | | | If sample addr correlates to a symbol, add "addr_dso", "addr_symbol", and "addr_symoff" to python scripting. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Find script file relative to exec pathAdrian Hunter2021-05-251-2/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow perf script to find a script in the exec path. Example: Before: $ perf record -a -e intel_pt/branch=0/ sleep 0.1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.954 MB perf.data ] $ perf script intel-pt-events.py 2>&1 | head -3 Error: Couldn't find script `intel-pt-events.py' See perf script -l for available scripts. $ perf script -s intel-pt-events.py 2>&1 | head -3 Can't open python script "intel-pt-events.py": No such file or directory $ perf script ~/libexec/perf-core/scripts/python/intel-pt-events.py 2>&1 | head -3 Error: Couldn't find script `/home/ahunter/libexec/perf-core/scripts/python/intel-pt-events.py' See perf script -l for available scripts. $ After: $ perf script intel-pt-events.py 2>&1 | head -3 Intel PT Power Events and PTWRITE perf 8123/8123 [000] 551.230753986 cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown]) perf 8123/8123 [001] 551.230808216 cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown]) $ perf script -s intel-pt-events.py 2>&1 | head -3 Intel PT Power Events and PTWRITE perf 8123/8123 [000] 551.230753986 cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown]) perf 8123/8123 [001] 551.230808216 cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown]) $ perf script ~/libexec/perf-core/scripts/python/intel-pt-events.py 2>&1 | head -3 Intel PT Power Events and PTWRITE perf 8123/8123 [000] 551.230753986 cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown]) perf 8123/8123 [001] 551.230808216 cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown]) $ Signed-off-by: Adrian Hunter <[email protected]> Acked-by: Jiri Olsa <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf tools: Fix various typos in commentsIngo Molnar2021-03-231-2/+2
| | | | | | | | | | | Fix ~124 single-word typos and a few spelling errors in the perf tooling code, accumulated over the years. Signed-off-by: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Fixup 'struct evsel_script' method prefixArnaldo Carvalho de Melo2021-03-091-10/+8
| | | | | | | They all operate on 'struct evsel_script' instances, so should be prefixed with evsel_script__, not with perf_evsel_script__. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Add branch types for VM-Entry and VM-ExitAdrian Hunter2021-02-181-0/+2
| | | | | | | | | | | | | | | In preparation to support Intel PT decoding of virtual machine traces, add branch types for VM-Entry and VM-Exit. Note they are both treated as "calls" because the VM-Exit transfers control to a different address. Signed-off-by: Adrian Hunter <[email protected]> Acked-by: Andi Kleen <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf intel-pt: Add PSB eventsAdrian Hunter2021-02-181-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Emitting a PSB+ can cause a CPU a slight delay. When doing timing analysis of code with Intel PT, it is useful to know if a timing bubble was caused by Intel PT or not. Add reporting of PSB events via perf script. PSB events are printed with the existing itrace 'p' option which also prints power and frequency changes. The PSB event contains the trace offset at which the PSB occurs, to allow easy reference back to the PSB+ packets. The PSB event timestamp is always the timestamp from the PSB+ TSC packet, and the ip is always the address from the PSB+ FUP packet. The code changes are non-trivial because the decoder must walk to the PSB+ FUP address before outputting the PSB event. Example: $ perf record -e intel_pt/cyc,psb_period=0/u uname Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.046 MB perf.data ] $ perf script --itrace=p --ns perf 17981 [006] 25617.510820383: psb: psb offs: 0 0 [unknown] ([unknown]) perf 17981 [006] 25617.510820383: cbr: cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown]) uname 17981 [006] 25617.510889753: psb: psb offs: 0xb50 7f78c12a212e __GI___tunables_init+0xee (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.510899162: psb: psb offs: 0x12d0 7f78c128af1c dl_main+0x93c (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.510939242: psb: psb offs: 0x1a50 7f78c128eefc _dl_map_object_from_fd+0x13c (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.510981274: psb: psb offs: 0x21c8 7f78c1296307 _dl_relocate_object+0x927 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.510993034: psb: psb offs: 0x2948 7f78c12940e4 _dl_lookup_symbol_x+0x14 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.511003871: psb: psb offs: 0x30c8 7f78c12937b3 do_lookup_x+0x2f3 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.511019854: psb: psb offs: 0x3850 7f78c1295eed _dl_relocate_object+0x50d (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.511029015: psb: psb offs: 0x4390 7f78c12a855a strcmp+0xf6a (/usr/lib/x86_64-linux-gnu/ld-2.31.so) uname 17981 [006] 25617.511064876: psb: psb offs: 0x4b10 0 [unknown] ([unknown]) uname 17981 [006] 25617.511080762: psb: psb offs: 0x5290 7f78c11db53d _dl_addr+0x13d (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511086035: psb: psb offs: 0x5a08 7f78c11db538 _dl_addr+0x138 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511091381: psb: psb offs: 0x6190 7f78c11db534 _dl_addr+0x134 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511096681: psb: psb offs: 0x6910 7f78c11db4c3 _dl_addr+0xc3 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511119520: psb: psb offs: 0x7090 7f78c10ada5e _nl_intern_locale_data+0x12e (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511126584: psb: psb offs: 0x7818 7f78c10ada50 _nl_intern_locale_data+0x120 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511132775: psb: psb offs: 0x8358 7f78c10c20c0 getenv+0xa0 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511134598: psb: psb offs: 0x8ad0 7f78c10ada09 _nl_intern_locale_data+0xd9 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511135685: psb: psb offs: 0x9258 7f78c10ada50 _nl_intern_locale_data+0x120 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511138322: psb: psb offs: 0x99d0 7f78c11fffd9 __strncmp_avx2+0x39 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) uname 17981 [006] 25617.511158907: psb: psb offs: 0xa150 0 [unknown] ([unknown]) Signed-off-by: Adrian Hunter <[email protected]> Reviewed-by: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Simplify bool conversionYang Li2021-02-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following coccicheck warning: ./tools/perf/builtin-script.c:2789:36-41: WARNING: conversion to bool not needed here ./tools/perf/builtin-script.c:3237:48-53: WARNING: conversion to bool not needed here Reported-by: Abaci Robot <[email protected]> Signed-off-by: Yang Li <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: John Fastabend <[email protected]> Cc: KP Singh <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin KaFai Lau <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Support filtering by hex addressJin Yao2021-02-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'perf script' supports '-S' or '--symbol' options to only list the records for these symbols. A symbol is typically a name or hex address. If it's hex address, it is the start address of one symbol. While it would be useful if we can filter trace records by any hex address (not only the start address of symbol). So now we support filtering trace records by more conditions, such as: - symbol name - start address of symbol - any hexadecimal address - address range The comparison order is defined as: 1. symbol name comparison 2. symbol start address comparison. 3. any hexadecimal address comparison. 4. address range comparison. The idea is if we can get a valid address from -S list, we add the address to addr_list for address comparison otherwise we still leave it to sym_list for symbol comparison. Some examples: root@kbl-ppc:~# ./perf script -S ffffffff9a477308 perf 8562 [000] 347303.578858: 1 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) perf 8562 [000] 347303.578860: 1 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) perf 8562 [000] 347303.578861: 11 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) perf 8562 [001] 347303.578903: 1 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) perf 8562 [001] 347303.578905: 1 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) perf 8562 [001] 347303.578906: 15 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) perf 8562 [002] 347303.578952: 1 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) perf 8562 [002] 347303.578953: 1 cycles: ffffffff9a477308 native_write_msr+0x8 ([kernel.kallsyms]) Filter the traced records by hex address ffffffff9a477308. root@kbl-ppc:~# ./perf script -S ffffffff9a4dd4ce,ffffffff9a4d2de9,ffffffff9a6bf9f4 perf 8562 [001] 347303.578911: 311706 cycles: ffffffff9a6bf9f4 __kmalloc_node+0x204 ([kernel.kallsyms]) perf 8562 [002] 347303.578960: 354477 cycles: ffffffff9a4d2de9 sched_setaffinity+0x49 ([kernel.kallsyms]) perf 8562 [003] 347303.579015: 450958 cycles: ffffffff9a4dd4ce dequeue_task_fair+0x1ae ([kernel.kallsyms]) Filter the traced records by hex address ffffffff9a4dd4ce, ffffffff9a4d2de9, ffffffff9a6bf9f4. root@kbl-ppc:~# ./perf script -S ffffffff9a477309 --addr-range 16 perf 8562 [000] 347303.578863: 291 cycles: ffffffff9a47730a native_write_msr+0xa ([kernel.kallsyms]) perf 8562 [001] 347303.578907: 411 cycles: ffffffff9a47730a native_write_msr+0xa ([kernel.kallsyms]) perf 8562 [002] 347303.578956: 462 cycles: ffffffff9a47730f native_write_msr+0xf ([kernel.kallsyms]) perf 8562 [003] 347303.579010: 497 cycles: ffffffff9a47730f native_write_msr+0xf ([kernel.kallsyms]) perf 8562 [004] 347303.579059: 429 cycles: ffffffff9a47730f native_write_msr+0xf ([kernel.kallsyms]) perf 8562 [005] 347303.579109: 408 cycles: ffffffff9a47730a native_write_msr+0xa ([kernel.kallsyms]) perf 8562 [006] 347303.579159: 460 cycles: ffffffff9a47730f native_write_msr+0xf ([kernel.kallsyms]) perf 8562 [007] 347303.579213: 436 cycles: ffffffff9a47730f native_write_msr+0xf ([kernel.kallsyms]) Filter the traced records from address range [ffffffff9a477309, ffffffff9a477309 + 15]. root@kbl-ppc:~# ./perf script -S "ffffffff9b163046,rcu_nmi_exit" perf 8562 [004] 347303.579060: 12013 cycles: ffffffff9b163046 exc_nmi+0x166 ([kernel.kallsyms]) perf 8562 [007] 347303.579214: 12138 cycles: ffffffff9b165944 rcu_nmi_exit+0x34 ([kernel.kallsyms]) Filter by address + symbol Signed-off-by: Jin Yao <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jin Yao <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Support DSO filter like in other perf toolsJin Yao2021-02-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Other perf tool builtins already supported a DSO filter. For example: $ perf report --dsos a,b,c which only considers symbols in these dsos. Now the DSO filter is supported in 'perf script': root@kbl-ppc:~# ./perf script --dsos "[kernel.kallsyms]" perf 18123 [000] 6142863.075104: 1 cycles: ffffffff9ca77308 native_write_msr+0x8 ([kernel.kallsyms]) perf 18123 [000] 6142863.075107: 1 cycles: ffffffff9ca77308 native_write_msr+0x8 ([kernel.kallsyms]) perf 18123 [000] 6142863.075108: 10 cycles: ffffffff9ca77308 native_write_msr+0x8 ([kernel.kallsyms]) perf 18123 [000] 6142863.075109: 273 cycles: ffffffff9ca7730a native_write_msr+0xa ([kernel.kallsyms]) perf 18123 [000] 6142863.075110: 7684 cycles: ffffffff9ca3c9c0 native_sched_clock+0x50 ([kernel.kallsyms]) perf 18123 [000] 6142863.075112: 213017 cycles: ffffffff9d765a92 syscall_exit_to_user_mode+0x32 ([kernel.kallsyms]) perf 18123 [001] 6142863.075156: 1 cycles: ffffffff9ca77308 native_write_msr+0x8 ([kernel.kallsyms]) perf 18123 [001] 6142863.075158: 1 cycles: ffffffff9ca77308 native_write_msr+0x8 ([kernel.kallsyms]) perf 18123 [001] 6142863.075159: 17 cycles: ffffffff9ca77308 native_write_msr+0x8 ([kernel.kallsyms]) Committer testing: $ perf script ls 2364888 29303.010949: 1 cycles:u: ffffffffa4bbc6a9 [unknown] ([unknown]) ls 2364888 29303.010957: 1 cycles:u: ffffffffa429ef48 [unknown] ([unknown]) ls 2364888 29303.010961: 1 cycles:u: ffffffffa4260133 [unknown] ([unknown]) ls 2364888 29303.010964: 5 cycles:u: ffffffffa429efad [unknown] ([unknown]) ls 2364888 29303.010967: 41 cycles:u: ffffffffa42a4586 [unknown] ([unknown]) ls 2364888 29303.010972: 435 cycles:u: ffffffffa429efe0 [unknown] ([unknown]) ls 2364888 29303.010978: 5142 cycles:u: 7f9b95bc2abf __GI___tunables_init+0x11f (/usr/lib64/ld-2.32.so) ls 2364888 29303.011006: 38551 cycles:u: ffffffffa4290f61 [unknown] ([unknown]) ls 2364888 29303.011486: 238234 cycles:u: 7f9b95bb7741 _dl_relocate_object+0xa71 (/usr/lib64/ld-2.32.so) ls 2364888 29303.011937: 415870 cycles:u: 7f9b95a1c80e __strcoll_l+0xe (/usr/lib64/libc-2.32.so) $ Before: $ perf script --dsos /usr/lib64/libc-2.32.so |& head -5 Error: unknown option `dsos' Usage: perf script [<options>] or: perf script [<options>] record <script> [<record-options>] <command> or: perf script [<options>] report <script> [script-args] $ After: $ perf script --dsos /usr/lib64/libc-2.32.so ls 2364888 29303.011937: 415870 cycles:u: 7f9b95a1c80e __strcoll_l+0xe (/usr/lib64/libc-2.32.so) $ Signed-off-by: Jin Yao <[email protected]> Acked-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jin Yao <[email protected]> Cc: Kan Liang <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo2021-01-271-1/+17
|\ | | | | | | | | | | To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| * perf script: Fix overrun issue for dynamically-allocated PMU type numberJin Yao2021-01-211-1/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When unpacking the event which is from dynamic PMU, the array output[OUTPUT_TYPE_MAX] may be overrun. For example, type number of SKL uncore_imc is 10, but OUTPUT_TYPE_MAX is 7 now (OUTPUT_TYPE_MAX = PERF_TYPE_MAX + 1). /* In builtin-script.c */ process_event() { unsigned int type = output_type(attr->type); if (output[type].fields == 0) return; } output[10] is overrun. Create a type OUTPUT_TYPE_OTHER for dynamic PMU events, then output_type(attr->type) will return OUTPUT_TYPE_OTHER here. Note that if PERF_TYPE_MAX ever changed, then there would be a conflict between old perf.data files that had a dynamicaliy allocated PMU number that would then be the same as a fixed PERF_TYPE. Example: # perf record --switch-events -C 0 -e "{cpu-clock,uncore_imc/data_reads/,uncore_imc/data_writes/}:SD" -a -- sleep 1 # perf script Before: swapper 0 [000] 1479253.987551: 277766 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.987797: 246709 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.988127: 329883 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.988273: 146393 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.988523: 249977 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.988877: 354090 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.989023: 145940 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.989383: 359856 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1479253.989523: 140082 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) After: swapper 0 [000] 1397040.402011: 272384 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1397040.402011: 5396 uncore_imc/data_reads/: swapper 0 [000] 1397040.402011: 967 uncore_imc/data_writes/: swapper 0 [000] 1397040.402259: 249153 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1397040.402259: 7231 uncore_imc/data_reads/: swapper 0 [000] 1397040.402259: 1297 uncore_imc/data_writes/: swapper 0 [000] 1397040.402508: 249108 cpu-clock: ffffffff9d4ddb6f cpuidle_enter_state+0xdf ([kernel.kallsyms]) swapper 0 [000] 1397040.402508: 5333 uncore_imc/data_reads/: swapper 0 [000] 1397040.402508: 1008 uncore_imc/data_writes/: Signed-off-by: Jin Yao <[email protected]> Acked-by: Adrian Hunter <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Kan Liang <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* | perf script: Add support for PERF_SAMPLE_CODE_PAGE_SIZEStephane Eranian2021-01-201-2/+11
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Display sampled code page sizes when PERF_SAMPLE_CODE_PAGE_SIZE was set. For example: # perf script --fields comm,event,ip,code_page_size dtlb mem-loads:uP: 445777 4K dtlb mem-loads:uP: 40f724 4K dtlb mem-loads:uP: 474926 4K dtlb mem-loads:uP: 401075 4K dtlb mem-loads:uP: 401095 4K dtlb mem-loads:uP: 401095 4K dtlb mem-loads:uP: 4010cc 4K dtlb mem-loads:uP: 440b6f 4K # Signed-off-by: Stephane Eranian <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Will Deacon <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Kan Liang <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Support data page sizeKan Liang2020-12-191-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Display the data page size if it is available and asked by the user: Can be configured by the user, for example: perf script --fields comm,event,phys_addr,data_page_size dtlb mem-loads:uP: 3fec82ea8 4K dtlb mem-loads:uP: 3fec82e90 4K dtlb mem-loads:uP: 3e23700a4 4K dtlb mem-loads:uP: 3fec82f20 4K dtlb mem-loads:uP: 3e23700a4 4K dtlb mem-loads:uP: 3b4211bec 4K dtlb mem-loads:uP: 382205dc0 2M dtlb mem-loads:uP: 36fa082c0 2M dtlb mem-loads:uP: 377607340 2M dtlb mem-loads:uP: 330010180 2M dtlb mem-loads:uP: 33200fd80 2M dtlb mem-loads:uP: 31b012b80 2M Signed-off-by: Kan Liang <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Will Deacon <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf evlist: Use the right prefix for 'struct evlist' sample id lookup methodsArnaldo Carvalho de Melo2020-11-301-1/+1
| | | | | | | | | | | perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf evlist: Use the right prefix for 'struct evlist' stats methodsArnaldo Carvalho de Melo2020-11-301-3/+3
| | | | | | | | | | | perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Display negative tid in non-sample eventsAdrian Hunter2020-09-171-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel can release tasks while they are still running. This can result in a task having no tid, in which case perf records a tid of -1. Improve the perf script output in that case. Example: Before: # cat ./autoreap.c #include <sys/types.h> #include <unistd.h> #include <sys/wait.h> #include <signal.h> struct sigaction act = { .sa_handler = SIG_IGN, }; int main() { pid_t child; int status = 0; sigaction(SIGCHLD, &act, NULL); child = fork(); if (child == 0) return 123; wait(&status); return 0; } # gcc -o autoreap autoreap.c # ./perf record -a -e dummy --switch-events ./autoreap [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.948 MB perf.data ] # ./perf script --show-task-events --show-switch-events | grep -C2 'autoreap\|4294967295\|-1' swapper 0 [004] 18462.673613: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25189/25189 perf 25189 [004] 18462.673614: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 autoreap 25189 [004] 18462.673800: PERF_RECORD_COMM exec: autoreap:25189/25189 autoreap 25189 [004] 18462.674042: PERF_RECORD_FORK(25191:25191):(25189:25189) autoreap 25189 [004] 18462.674050: PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [004] 18462.674051: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 25189/25189 swapper 0 [005] 18462.674083: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25191/25191 autoreap 25191 [005] 18462.674084: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 swapper 0 [003] 18462.674121: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 11/11 rcu_preempt 11 [003] 18462.674121: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 rcu_preempt 11 [003] 18462.674124: PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [003] 18462.674124: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 11/11 autoreap 25191 [005] 18462.674138: PERF_RECORD_EXIT(25191:25191):(25189:25189) PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [005] 18462.674149: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 4294967295/4294967295 swapper 0 [004] 18462.674182: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25189/25189 autoreap 25189 [004] 18462.674183: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 autoreap 25189 [004] 18462.674218: PERF_RECORD_EXIT(25189:25189):(25188:25188) autoreap 25189 [004] 18462.674225: PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [004] 18462.674226: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 25189/25189 swapper 0 [007] 18462.674257: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25188/25188 After: # ./perf script --show-task-events --show-switch-events | grep -C2 'autoreap\|4294967295\|-1' swapper 0 [004] 18462.673613: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25189/25189 perf 25189 [004] 18462.673614: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 autoreap 25189 [004] 18462.673800: PERF_RECORD_COMM exec: autoreap:25189/25189 autoreap 25189 [004] 18462.674042: PERF_RECORD_FORK(25191:25191):(25189:25189) autoreap 25189 [004] 18462.674050: PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [004] 18462.674051: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 25189/25189 swapper 0 [005] 18462.674083: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25191/25191 autoreap 25191 [005] 18462.674084: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 swapper 0 [003] 18462.674121: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 11/11 rcu_preempt 11 [003] 18462.674121: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 rcu_preempt 11 [003] 18462.674124: PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [003] 18462.674124: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 11/11 autoreap 25191 [005] 18462.674138: PERF_RECORD_EXIT(25191:25191):(25189:25189) :-1 -1 [005] 18462.674149: PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [005] 18462.674149: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: -1/-1 swapper 0 [004] 18462.674182: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25189/25189 autoreap 25189 [004] 18462.674183: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 0/0 autoreap 25189 [004] 18462.674218: PERF_RECORD_EXIT(25189:25189):(25188:25188) autoreap 25189 [004] 18462.674225: PERF_RECORD_SWITCH_CPU_WIDE OUT next pid/tid: 0/0 swapper 0 [004] 18462.674226: PERF_RECORD_SWITCH_CPU_WIDE IN prev pid/tid: 25189/25189 swapper 0 [007] 18462.674257: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt next pid/tid: 25188/25188 Signed-off-by: Adrian Hunter <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Yu-cheng Yu <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Add 'tod' field to display time of dayJiri Olsa2020-08-061-33/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a 'tod' field to display time of day column with time of date (wallclock) time. # perf record -k CLOCK_MONOTONIC kill kill: not enough arguments [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.033 MB perf.data (8 samples) ] # perf script perf 261340 152919.481538: 1 cycles: ffffffff8106d104 ... perf 261340 152919.481543: 1 cycles: ffffffff8106d104 ... perf 261340 152919.481545: 7 cycles: ffffffff8106d104 ... ... # perf script --ns perf 261340 152919.481538922: 1 cycles: ffffffff8106d ... perf 261340 152919.481543286: 1 cycles: ffffffff8106d ... perf 261340 152919.481545397: 7 cycles: ffffffff8106d ... ... # perf script -F+tod perf 261340 2020-07-13 18:26:55.620971 152919.481538: ... perf 261340 2020-07-13 18:26:55.620975 152919.481543: ... perf 261340 2020-07-13 18:26:55.620978 152919.481545: ... ... # perf script -F+tod --ns perf 261340 2020-07-13 18:26:55.620971621 152919.481538922: ... perf 261340 2020-07-13 18:26:55.620975985 152919.481543286: ... perf 261340 2020-07-13 18:26:55.620978096 152919.481545397: ... ... It's available only for recording with clockid specified, because it's the only case where we can get reference time to wallclock time. It's can't do that with perf clock yet. Error is display if you want to use --tod on data without clockid specified: # perf script -F+tod Can't provide 'tod' time, missing clock data. Please record with -k/--clockid option. Original-patch-by: David Ahern <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Geneviève Bastien <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jeremie Galarneau <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Change the 'enum perf_output_field' enumerators to be 64 bitsJiri Olsa2020-08-061-32/+32
| | | | | | | | | | | | | | | | | | | | So it's possible to add new values. I did not find any place where the enum values are passed through some number type, so it's safe to make this change. Signed-off-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Geneviève Bastien <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jeremie Galarneau <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Show text poke address symbolAdrian Hunter2020-07-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | It is generally more useful to show the symbol with an address. In this case, the print function requires the 'machine' which means changing callers to provide it as a parameter. It is optional because most events do not need it and the callers that matter can provide it. Committer notes: Made 'union perf_event' continue to be the first parameter to the perf_event__fprintf() and perf_event__fprintf_text_poke() events. Signed-off-by: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt (VMware) <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Add option --show-text-poke-eventsAdrian Hunter2020-07-101-0/+19
| | | | | | | | | | | | | | | | | | | | | | Consistent with other new events, add an option to perf script to display text poke events and ksymbol events. Both text poke events and ksymbol events are displayed because some text pokes (e.g. ftrace trampolines) have corresponding ksymbol events. Signed-off-by: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt (VMware) <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo2020-07-081-1/+1
|\ | | | | | | | | | | | | | | | | To pick up fixes and move perf/core forward, minor conflict as perf_evlist__add_dummy() lost its 'perf_' prefix as it operates on a 'struct evlist', not on a 'struct perf_evlist', i.e. its tools/perf/ specific, it is not in libperf. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| * perf intel-pt: Fix displaying PEBS-via-PT with registersAdrian Hunter2020-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After recording PEBS-via-PT, perf script will not accept 'iregs' field e.g. # perf record -c 10000 -e '{intel_pt/branch=0/,branch-loads/aux-output/ppp}' -I -- ls -l ... [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.062 MB perf.data ] # ./perf script --itrace=eop -F+iregs Samples for 'dummy:u' event do not have IREGS attribute set. Cannot print 'iregs' field. Fix by using allow_user_set, which is true when recording AUX area data. Fixes: 9e64cefe4335b ("perf intel-pt: Process options for PEBS event synthesis") Signed-off-by: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Luwei Kang <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* | perf evlist: Fix the class prefix for 'struct evlist' branch_type methodsArnaldo Carvalho de Melo2020-06-221-2/+1
| | | | | | | | | | | | | | | | | | To differentiate from libperf's 'struct perf_evlist' methods. Cc: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* | perf evlist: Fix the class prefix for 'struct evlist' sample_type methodsArnaldo Carvalho de Melo2020-06-221-2/+2
| | | | | | | | | | | | | | | | | | To differentiate from libperf's 'struct perf_evlist' methods. Cc: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* | perf script: Fixup some evsel/evlist method namesArnaldo Carvalho de Melo2020-06-221-5/+5
|/ | | | | | | | | | | Fixups related to the introduction of libperf, where the perf_{evsel,evlist}__ prefix is reserved for functions operating on struct perf_{evsel,evlist}. Cc: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Initialize zstd_dataMilian Wolff2020-06-171-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes segmentation fault when trying to interpret zstd-compressed data with perf script: ``` $ perf record -z ls ... [ perf record: Captured and wrote 0,010 MB perf.data, compressed (original 0,001 MB, ratio is 2,190) ] $ memcheck perf script ... ==67911== Invalid read of size 4 ==67911== at 0x5568188: ZSTD_decompressStream (in /usr/lib/libzstd.so.1.4.5) ==67911== by 0x6E726B: zstd_decompress_stream (zstd.c:100) ==67911== by 0x65729C: perf_session__process_compressed_event (session.c:72) ==67911== by 0x6598E8: perf_session__process_user_event (session.c:1583) ==67911== by 0x65BA59: reader__process_events (session.c:2177) ==67911== by 0x65BA59: __perf_session__process_events (session.c:2234) ==67911== by 0x65BA59: perf_session__process_events (session.c:2267) ==67911== by 0x5A7397: __cmd_script (builtin-script.c:2447) ==67911== by 0x5A7397: cmd_script (builtin-script.c:3840) ==67911== by 0x5FE9D2: run_builtin (perf.c:312) ==67911== by 0x711627: handle_internal_command (perf.c:364) ==67911== by 0x711627: run_argv (perf.c:408) ==67911== by 0x711627: main (perf.c:538) ==67911== Address 0x71d8 is not stack'd, malloc'd or (recently) free'd ``` Signed-off-by: Milian Wolff <[email protected]> Acked-by: Alexey Budankov <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> LPU-Reference: [email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Fix --call-trace for Intel PTAdrian Hunter2020-05-281-4/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make process_attr() respect -F-ip, noting also that the condition in process_attr() (callchain_param.record_mode != CALLCHAIN_NONE) is always true so test the sample type directly. Example: Before: $ perf record -e intel_pt//u uname Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.033 MB perf.data ] $ perf script --call-trace | head -5 uname 30992 [006] 41758.313696574: cbr: 42 freq: 4219 MHz (156%) 0 [unknown] ([unknown] ) uname 30992 [006] 41758.313696907: _start 7f71792c4100 _start+0x0 (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) uname 30992 [006] 41758.313699574: _dl_start 7f71792c4103 _start+0x3 (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) uname 30992 [006] 41758.313699907: _dl_start 7f71792c4e18 _dl_start+0x28 (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) uname 30992 [006] 41758.313701574: _dl_start 7f71792c5128 _dl_start+0x338 (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) After: $ perf script --call-trace | head -5 uname 30992 [006] 41758.313696574: cbr: 42 freq: 4219 MHz (156%) uname 30992 [006] 41758.313696907: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _start uname 30992 [006] 41758.313699574: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start uname 30992 [006] 41758.313699907: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start uname 30992 [006] 41758.313701574: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start Fixes: f288e8e1aa4f ("perf script: Enable IP fields for callchains") Signed-off-by: Adrian Hunter <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Don't force less for non tty output with --xedAndi Kleen2020-05-281-1/+4
| | | | | | | | | | | | --xed currently forces less. When piping the output to other scripts this can waste a lot of CPU time because less is rather slow. I've seen it using up a full core on its own in a pipeline. Only force less when the output is actually a terminal. Signed-off-by: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf tools: Replace zero-length array with flexible-arrayGustavo A. R. Silva2020-05-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] sizeof(flexible-array-member) triggers a warning because flexible array members have incomplete type[1]. There are some instances of code in which the sizeof operator is being incorrectly/erroneously applied to zero-length arrays and the result is zero. Such instances may be hiding some bugs. So, this work (flexible-array member conversions) will also help to get completely rid of those sorts of issues. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Gustavo A. R. Silva <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/20200515172926.GA31976@embeddedor Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
* perf script: Enable IP fields for callchainsJiri Olsa2020-05-281-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case the callchains were deleted in pipe mode, we need to ensure that the IP fields are enabled, otherwise the callchain is not displayed. Enabling IP and SYM, which should be enough for callchains. Committer testing: Before: Committer Testing: before: # ls # perf record -g -e 'syscalls:*' sleep 0.1 2>/dev/null | perf script | tail sleep 5677 [0] 5034.295882: syscalls:sys_exit_mmap: 0x7fcbcfa74000 sleep 5677 [0] 5034.295885: syscalls:sys_enter_close: fd: 0x00000003 sleep 5677 [0] 5034.295886: syscalls:sys_exit_close: 0x0 sleep 5677 [0] 5034.295911: syscalls:sys_enter_nanosleep: rqtp: 0x7fff775b33a0, rmtp: 0x00000000 sleep 5677 [0] 5034.396021: syscalls:sys_exit_nanosleep: 0x0 sleep 5677 [0] 5034.396027: syscalls:sys_enter_close: fd: 0x00000001 sleep 5677 [0] 5034.396028: syscalls:sys_exit_close: 0x0 sleep 5677 [0] 5034.396029: syscalls:sys_enter_close: fd: 0x00000002 sleep 5677 [0] 5034.396029: syscalls:sys_exit_close: 0x0 sleep 5677 [0] 5034.396032: syscalls:sys_enter_exit_group: error_code: 0x00000000 # # ls # After: # perf record --call-graph=dwarf -e 'syscalls:sys_enter*' sleep 0.1 2>/dev/null | perf script | tail -37 sleep 33010 [000] 5400.625269: syscalls:sys_enter_nanosleep: rqtp: 0x7fff2d0e7860, rmtp: 0x00000000 7f1406f131a7 __GI___nanosleep (inlined) 561c4f996966 [unknown] 561c4f99673f [unknown] 561c4f9937af [unknown] 7f1406e6c1a2 __libc_start_main 561c4f99388d [unknown] sleep 33010 [000] 5400.725391: syscalls:sys_enter_close: fd: 0x00000001 7f1406f3c3cb __GI___close_nocancel (inlined) 7f1406ec7d6f _IO_new_file_close_it (inlined) 7f1406ebafa5 _IO_new_fclose (inlined) 561c4f996a40 [unknown] 561c4f993d79 [unknown] 7f1406e83e86 __run_exit_handlers 7f1406e8403f __GI_exit (inlined) 7f1406e6c1a9 __libc_start_main 561c4f99388d [unknown] sleep 33010 [000] 5400.725395: syscalls:sys_enter_close: fd: 0x00000002 7f1406f3c3cb __GI___close_nocancel (inlined) 7f1406ec7d6f _IO_new_file_close_it (inlined) 7f1406ebafa5 _IO_new_fclose (inlined) 561c4f996a40 [unknown] 561c4f993da2 [unknown] 7f1406e83e86 __run_exit_handlers 7f1406e8403f __GI_exit (inlined) 7f1406e6c1a9 __libc_start_main 561c4f99388d [unknown] sleep 33010 [000] 5400.725399: syscalls:sys_enter_exit_group: error_code: 0x00000000 7f1406f13466 __GI__exit (inlined) 7f1406e83fa1 __run_exit_handlers 7f1406e8403f __GI_exit (inlined) 7f1406e6c1a9 __libc_start_main 561c4f99388d [unknown] # And, if we install coreutils-debuginfo, we'll have those [unknown] resolved, those are for the /usr/bin/sleep binary, use: # dnf debuginfo-install coreutils On Fedora and derivatives, then: # perf record --call-graph=dwarf -e 'syscalls:sys_enter*' sleep 0.1 2>/dev/null | perf script | tail -37 sleep 33046 [009] 5533.910074: syscalls:sys_enter_nanosleep: rqtp: 0x7ffea6fa7ab0, rmtp: 0x00000000 7f5f786e81a7 __GI___nanosleep (inlined) 564472454966 rpl_nanosleep 56447245473f xnanosleep 5644724517af main 7f5f786411a2 __libc_start_main 56447245188d _start sleep 33046 [009] 5534.010218: syscalls:sys_enter_close: fd: 0x00000001 7f5f787113cb __GI___close_nocancel (inlined) 7f5f7869cd6f _IO_new_file_close_it (inlined) 7f5f7868ffa5 _IO_new_fclose (inlined) 564472454a40 close_stream 564472451d79 close_stdout 7f5f78658e86 __run_exit_handlers 7f5f7865903f __GI_exit (inlined) 7f5f786411a9 __libc_start_main 56447245188d _start sleep 33046 [009] 5534.010224: syscalls:sys_enter_close: fd: 0x00000002 7f5f787113cb __GI___close_nocancel (inlined) 7f5f7869cd6f _IO_new_file_close_it (inlined) 7f5f7868ffa5 _IO_new_fclose (inlined) 564472454a40 close_stream 564472451da2 close_stdout 7f5f78658e86 __run_exit_handlers 7f5f7865903f __GI_exit (inlined) 7f5f786411a9 __libc_start_main 56447245188d _start sleep 33046 [009] 5534.010229: syscalls:sys_enter_exit_group: error_code: 0x00000000 7f5f786e8466 __GI__exit (inlined) 7f5f78658fa1 __run_exit_handlers 7f5f7865903f __GI_exit (inlined) 7f5f786411a9 __libc_start_main 56447245188d _start # Reported-by: Paul Khuong <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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