diff options
| author | Anton Blanchard <anton@samba.org> | 2009-10-18 01:09:29 +0000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2009-10-28 16:13:03 +1100 |
| commit | f7d7986060b2890fc26db6ab5203efbd33aa2497 (patch) | |
| tree | 0ed63257afd3fd02d83ab481af35855603ac4790 /include/linux | |
| parent | 81cd5ae303e88a1e9d3a3e0f1fe8abd100edde16 (diff) | |
| download | kernel_samsung_espresso10-f7d7986060b2890fc26db6ab5203efbd33aa2497.zip kernel_samsung_espresso10-f7d7986060b2890fc26db6ab5203efbd33aa2497.tar.gz kernel_samsung_espresso10-f7d7986060b2890fc26db6ab5203efbd33aa2497.tar.bz2 | |
perf_event: Add alignment-faults and emulation-faults software events
Add two more software events that are common to many cpus.
Alignment faults: When a load or store is not aligned properly.
Emulation faults: When an instruction is emulated in software.
Both cause a very significant slowdown (100x or worse), so identifying and
fixing them is very important.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/perf_counter.h | 2 | ||||
| -rw-r--r-- | include/linux/perf_event.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 7b7fbf4..d6b95d1 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -106,6 +106,8 @@ enum perf_sw_ids { PERF_COUNT_SW_CPU_MIGRATIONS = 4, PERF_COUNT_SW_PAGE_FAULTS_MIN = 5, PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6, + PERF_COUNT_SW_ALIGNMENT_FAULTS = 7, + PERF_COUNT_SW_EMULATION_FAULTS = 8, PERF_COUNT_SW_MAX, /* non-ABI */ }; diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 2e6d95f..a33707a 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -102,6 +102,8 @@ enum perf_sw_ids { PERF_COUNT_SW_CPU_MIGRATIONS = 4, PERF_COUNT_SW_PAGE_FAULTS_MIN = 5, PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6, + PERF_COUNT_SW_ALIGNMENT_FAULTS = 7, + PERF_COUNT_SW_EMULATION_FAULTS = 8, PERF_COUNT_SW_MAX, /* non-ABI */ }; |