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Series |
TPEBS counting mode support
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Message
Wang, Weilin
Feb. 28, 2024, 4:12 p.m. UTC
From: Weilin Wang <weilin.wang@intel.com>
Changes in v2:
- Add MTL metric file
- Add more descriptions and example to the patch [Arnaldo]
Here is an example of running perf stat to collect a metric that uses
retire_latency value of event MEM_INST_RETIRED.STLB_HIT_STORES on a MTL system.
In this simple example, there is no MEM_INST_RETIRED.STLB_HIT_STORES sample.
Therefore, the MEM_INST_RETIRED.STLB_HIT_STORES:p count and retire_latency value
are all 0.
/perf stat -M tma_dtlb_store -a -- sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
Performance counter stats for 'system wide':
181,047,168 cpu_core/TOPDOWN.SLOTS/ # 0.6 % tma_dtlb_store
3,195,608 cpu_core/topdown-retiring/
40,156,649 cpu_core/topdown-mem-bound/
3,550,925 cpu_core/topdown-bad-spec/
117,571,818 cpu_core/topdown-fe-bound/
57,118,087 cpu_core/topdown-be-bound/
69,179 cpu_core/EXE_ACTIVITY.BOUND_ON_STORES/
4,582 cpu_core/MEM_INST_RETIRED.STLB_HIT_STORES/
30,183,104 cpu_core/CPU_CLK_UNHALTED.DISTRIBUTED/
30,556,790 cpu_core/CPU_CLK_UNHALTED.THREAD/
168,486 cpu_core/DTLB_STORE_MISSES.WALK_ACTIVE/
0.00 MEM_INST_RETIRED.STLB_HIT_STORES:p 0 0
1.003105924 seconds time elapsed
v1: https://lore.kernel.org/all/20240221072100.412939-1-weilin.wang@intel.com/
Weilin Wang (6):
perf stat: Parse and find tpebs events when parsing metrics to prepare
for perf record sampling
perf stat: Fork and launch perf record when perf stat needs to get
retire latency value for a metric.
perf stat: Add retire latency values into the expr_parse_ctx to
prepare for final metric calculation
perf stat: Create another thread for sample data processing
perf stat: Add retire latency print functions to print out at the very
end of print out
perf vendor events intel: Add MTL metric json files
tools/perf/builtin-stat.c | 222 +-
.../arch/x86/meteorlake/metricgroups.json | 127 +
.../arch/x86/meteorlake/mtl-metrics.json | 2531 +++++++++++++++++
tools/perf/util/data.c | 4 +
tools/perf/util/data.h | 1 +
tools/perf/util/metricgroup.c | 73 +-
tools/perf/util/metricgroup.h | 18 +-
tools/perf/util/stat-display.c | 65 +
tools/perf/util/stat-shadow.c | 18 +
tools/perf/util/stat.h | 5 +
10 files changed, 3046 insertions(+), 18 deletions(-)
create mode 100644 tools/perf/pmu-events/arch/x86/meteorlake/metricgroups.json
create mode 100644 tools/perf/pmu-events/arch/x86/meteorlake/mtl-metrics.json
--
2.43.0