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| author | Anton Blanchard <anton@samba.org> | 2009-10-18 03:09:29 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2009-10-28 06:13:03 +0100 |
| commit | f7d7986060b2890fc26db6ab5203efbd33aa2497 (patch) | |
| tree | 0ed63257afd3fd02d83ab481af35855603ac4790 /arch/arm/mach-lh7a40x/time.c | |
| parent | powerpc: perf_event: Enable SDAR in continous sample mode (diff) | |
| download | linux-f7d7986060b2890fc26db6ab5203efbd33aa2497.tar.xz linux-f7d7986060b2890fc26db6ab5203efbd33aa2497.zip | |
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 'arch/arm/mach-lh7a40x/time.c')
0 files changed, 0 insertions, 0 deletions