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| author | Andi Kleen <[email protected]> | 2015-05-10 19:22:46 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-08-04 08:16:58 +0000 |
| commit | 425507fa5f321bb5ce1b5eb57a9586e0cf0b9802 (patch) | |
| tree | e1f9614f91b95c082ce0ab0d2310103811954d96 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | perf/x86/intel: Move PMU ACK to after LBR read (diff) | |
| download | kernel-425507fa5f321bb5ce1b5eb57a9586e0cf0b9802.tar.gz kernel-425507fa5f321bb5ce1b5eb57a9586e0cf0b9802.zip | |
perf/x86/intel/lbr: Optimize v4 LBR unfreezing
In Arch perfmon v4 the GLOBAL_STATUS reset automatically unfreezes
LBRs. So no need to do it manually in the LBR code. Add a check
to skip it.
v2: Move test up to beginning of function.
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions