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| author |   Jiri Olsa <jolsa@kernel.org> | 2017-07-21 14:12:09 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-25 11:23:53 -0300 |
| commit | 2b04e0f88291c0dc7e12459bd3c3661d42209b4e (patch) | |
| tree | 0f0d42f4eb62d3c8b5fd0f073ee9128402d1f438 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | perf jvmti: Fix linker error when libelf config is disabled (diff) | |
| download | wireguard-linux-2b04e0f88291c0dc7e12459bd3c3661d42209b4e.tar.xz wireguard-linux-2b04e0f88291c0dc7e12459bd3c3661d42209b4e.zip | |
perf evsel: Add verbose output for sys_perf_event_open fallback
Adding info about what is being switched off in the sys_perf_event_open
fallback.
New output (notice the 'switching off' lines):
$ perf stat -e '{cycles,instructions}' -vvv ls
Using CPUID GenuineIntel-6-3D
intel_pt default config: tsc
------------------------------------------------------------
perf_event_attr:
size 112
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING|ID|GROUP
disabled 1
inherit 1
enable_on_exec 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid 3591 cpu -1 group_fd -1 flags 0x8
sys_perf_event_open failed, error -22
switching off cloexec flag
------------------------------------------------------------
perf_event_attr:
size 112
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING|ID|GROUP
disabled 1
inherit 1
enable_on_exec 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid 3591 cpu -1 group_fd -1 flags 0
sys_perf_event_open failed, error -22
switching off exclude_guest, exclude_host
------------------------------------------------------------
perf_event_attr:
size 112
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING|ID|GROUP
disabled 1
inherit 1
enable_on_exec 1
------------------------------------------------------------
sys_perf_event_open: pid 3591 cpu -1 group_fd -1 flags 0
sys_perf_event_open failed, error -22
switching off sample_id_all
------------------------------------------------------------
perf_event_attr:
size 112
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING|ID|GROUP
disabled 1
inherit 1
enable_on_exec 1
...
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170721121212.21414-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions