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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-05-25 16:38:11 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-05-25 16:38:11 -0300 |
commit | c410431cefefd766266139ed56bca21668e4f9a7 (patch) | |
tree | fe4ad29c08a3cf8fb1d8e754489fbe857e1dc79f /tools/vm | |
parent | 895d97663c83f8ed7a3386e912009155524fe7dd (diff) | |
download | linux-stable-c410431cefefd766266139ed56bca21668e4f9a7.tar.gz linux-stable-c410431cefefd766266139ed56bca21668e4f9a7.tar.bz2 linux-stable-c410431cefefd766266139ed56bca21668e4f9a7.zip |
perf tools: Reconstruct event with modifiers from perf_event_attr
The modifiers:
k kernel space
u user space
h hypervisor
G guest
H host
p, pp, ppp precision level (PEBS)
that can be suffixed to an event were lost when tools used event_name()
to reconstruct them from the perf_event_attr entries in a perf.data
file.
Fix it by following the defaults used for these modifiers in the current
codebase, so:
$ perf record -e instructions:u usleep 1 2> /dev/null
$ perf evlist
instructions:u
$ perf record -e cycles:k usleep 1 2> /dev/null
$ perf evlist
cycles:k
$ perf record -e cycles:kh usleep 1 2> /dev/null
$ perf evlist
cycles:kh
$ perf record -e cache-misses:G usleep 1 2> /dev/null
$ perf evlist
cache-misses:G
$ perf record -e cycles:ppk usleep 1 2> /dev/null
$ perf evlist
cycles:kpp
$
Also works with 'top', 'report', etc.
More work needed to cover tracepoints and software events while not
dragging lots of baggage to the python binding, this is a minimal fix
for v3.5.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-4hl5glle0hxlklw4usva1mkt@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/vm')
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