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| author | Peter Zijlstra <[email protected]> | 2011-04-26 11:24:33 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-04-26 11:34:34 +0000 |
| commit | 18a073a3acd3a47fbb5e23333df7fad28d576345 (patch) | |
| tree | 7b961ab5fd0f98a2348e4eaa419838040d7f8034 /tools/perf/util/python.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecr... (diff) | |
| download | kernel-18a073a3acd3a47fbb5e23333df7fad28d576345.tar.gz kernel-18a073a3acd3a47fbb5e23333df7fad28d576345.zip | |
perf, x86: Fix BTS condition
Currently the x86 backend incorrectly assumes that any BRANCH_INSN
with sample_period==1 is a BTS request. This is not true when we do
frequency driven profiling such as 'perf record -e branches'.
Solves this error:
$ perf record -e branches ./array
Error: sys_perf_event_open() syscall returned with 95 (Operation not supported).
Signed-off-by: Peter Zijlstra <[email protected]>
Reported-by: Ingo Molnar <[email protected]>
Cc: "Metzger, Markus T" <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/python.c')
0 files changed, 0 insertions, 0 deletions