diff options
| author | Ian Rogers <irogers@google.com> | 2025-03-07 05:39:02 +0300 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-03-12 05:00:50 +0300 |
| commit | fd5de637a4e9a4cfe987962f0a74f8ed84fca78e (patch) | |
| tree | f40b26bb23875bc542f6c96156a7ab98adf0ead3 /tools/perf/scripts/python/task-analyzer.py | |
| parent | f7cffbabf78203e5b67e4b632741d43644a513ba (diff) | |
| download | linux-fd5de637a4e9a4cfe987962f0a74f8ed84fca78e.tar.xz | |
perf tools: Improve handling of hybrid PMUs in perf_event_attr__fprintf
Support the PMU name from the legacy hardware and hw_cache PMU
extended types. Remove some macros and make variables more intention
revealing, rather than just being called "value".
Before:
```
$ perf stat -vv -e instructions true
...
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0xa00000001
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
disabled 1
inherit 1
enable_on_exec 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid 181636 cpu -1 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0x400000001
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
disabled 1
inherit 1
enable_on_exec 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid 181636 cpu -1 group_fd -1 flags 0x8 = 6
...
```
After:
```
$ perf stat -vv -e instructions true
...
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0xa00000001 (cpu_atom/PERF_COUNT_HW_INSTRUCTIONS/)
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
disabled 1
inherit 1
enable_on_exec 1
------------------------------------------------------------
sys_perf_event_open: pid 181724 cpu -1 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0x400000001 (cpu_core/PERF_COUNT_HW_INSTRUCTIONS/)
sample_type IDENTIFIER
read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
disabled 1
inherit 1
enable_on_exec 1
------------------------------------------------------------
sys_perf_event_open: pid 181724 cpu -1 group_fd -1 flags 0x8 = 6
...
```
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250307023906.1135613-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions