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| author | Adrian Hunter <[email protected]> | 2019-05-20 11:37:17 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2019-06-05 12:47:56 +0000 |
| commit | 3f05516758bef438cef7adc47599f8b8faad7c3a (patch) | |
| tree | ca3a74178c5f8a0b33fc5efc21648fcb30112284 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | perf intel-pt: Re-factor TIP cases in intel_pt_walk_to_ip (diff) | |
| download | kernel-3f05516758bef438cef7adc47599f8b8faad7c3a.tar.gz kernel-3f05516758bef438cef7adc47599f8b8faad7c3a.zip | |
perf intel-pt: Accumulate cycle count from TSC/TMA/MTC packets
When CYC packets are not available, it is still possible to count cycles
using TSC/TMA/MTC timestamps.
As the timestamp increments in TSC ticks, convert to CPU cycles using
the current core-to-bus ratio.
Do not accumulate cycles when control flow packet generation is not
enabled, nor when time has been "lost", typically due to mwait, which is
indicated by a TSC/TMA packet that is not part of PSB+.
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions