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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-03-13 12:21:34 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-06 09:29:40 +0200 |
| commit | ac17dc8e58f3069ea895cfff963adf98ff3cf6b2 (patch) | |
| tree | fe07b13dd100fd1f650d8437296f5c6908e9adea /arch/x86/mm/fault.c | |
| parent | 7dd1fcc258b65da718f01e4684a7b9244501a9fb (diff) | |
| download | op-kernel-dev-ac17dc8e58f3069ea895cfff963adf98ff3cf6b2.zip op-kernel-dev-ac17dc8e58f3069ea895cfff963adf98ff3cf6b2.tar.gz | |
perf_counter: provide major/minor page fault software events
Provide separate sw counters for major and minor page faults.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm/fault.c')
| -rw-r--r-- | arch/x86/mm/fault.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index c872575..f2d3324 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -1140,10 +1140,13 @@ good_area: return; } - if (fault & VM_FAULT_MAJOR) + if (fault & VM_FAULT_MAJOR) { tsk->maj_flt++; - else + perf_swcounter_event(PERF_COUNT_PAGE_FAULTS_MAJ, 1, 0, regs); + } else { tsk->min_flt++; + perf_swcounter_event(PERF_COUNT_PAGE_FAULTS_MIN, 1, 0, regs); + } check_v8086_mode(regs, address, tsk); |
