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authorAnton Blanchard <anton@samba.org>2009-10-18 01:09:29 +0000
committerPaul Mackerras <paulus@samba.org>2009-10-28 16:13:03 +1100
commitf7d7986060b2890fc26db6ab5203efbd33aa2497 (patch)
tree0ed63257afd3fd02d83ab481af35855603ac4790 /include
parent81cd5ae303e88a1e9d3a3e0f1fe8abd100edde16 (diff)
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')
-rw-r--r--include/linux/perf_counter.h2
-rw-r--r--include/linux/perf_event.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 7b7fbf433cf..d6b95d1e79f 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 2e6d95f9741..a33707a3a78 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 */
};