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| author | Kan Liang <kan.liang@linux.intel.com> | 2021-02-02 23:09:10 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-02-08 22:25:00 +0300 |
| commit | 590db42de068a1d11e51bd0796a9044621aeed2e (patch) | |
| tree | 8a08575b6be5ba31cdbbaae1c95eda72f623cf82 /tools/perf/util/sort.h | |
| parent | ea8d0ed6eae37b01953a29bca98112d9e2507a84 (diff) | |
| download | linux-590db42de068a1d11e51bd0796a9044621aeed2e.tar.xz | |
perf report: Support instruction latency
The instruction latency information can be recorded on some platforms,
e.g., the Intel Sapphire Rapids server. With both memory latency
(weight) and the new instruction latency information, users can easily
locate the expensive load instructions, and also understand the time
spent in different stages. The users can optimize their applications in
different pipeline stages.
The 'weight' field is shared among different architectures. Reusing the
'weight' field may impacts other architectures. Add a new field to store
the instruction latency.
Like the 'weight' support, introduce a 'ins_lat' for the global
instruction latency, and a 'local_ins_lat' for the local instruction
latency version.
Add new sort functions, INSTR Latency and Local INSTR Latency,
accordingly.
Add local_ins_lat to the default_mem_sort_order[].
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/1612296553-21962-7-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/sort.h')
| -rw-r--r-- | tools/perf/util/sort.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index 984e54533ae1..63f67a3f3630 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -50,6 +50,7 @@ struct he_stat { u64 period_guest_sys; u64 period_guest_us; u64 weight; + u64 ins_lat; u32 nr_events; }; @@ -231,6 +232,8 @@ enum sort_type { SORT_SYM_IPC_NULL, SORT_TIME, SORT_CODE_PAGE_SIZE, + SORT_LOCAL_INS_LAT, + SORT_GLOBAL_INS_LAT, /* branch stack specific sort keys */ __SORT_BRANCH_STACK, |