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SubjectRe: [PATCH -tip] perf_counter tool: builtin-stat add more events

* Jaswinder Singh Rajput <jaswinder@kernel.org> wrote:

> Added more events not it looks like on AMD box :
>
> ./perf stat -- ls -lR > /dev/null
>
> Performance counter stats for 'ls -lR':
>
> 2507744774 cycles # 2085.473 M/sec (scaled from 13.28%)
> 1515534968 instructions # 0.604 IPC (scaled from 13.28%)
> 783181797 cache-references # 651.304 M/sec (scaled from 36.36%)
> 18089523 cache-misses # 15.043 M/sec (scaled from 36.37%)
> 195550613 branches # 162.622 M/sec (scaled from 36.29%)
> 14623394 branch-misses # 12.161 M/sec (scaled from 36.29%)
> <not counted> bus-cycles
> 1203.182949 cpu-clock-msecs
> 1202.482671 task-clock-msecs # 0.990 CPUs
> 454 page-faults # 0.000 M/sec
> 454 minor-faults # 0.000 M/sec
> 0 major-faults # 0.000 M/sec
> 133 context-switches # 0.000 M/sec
> 1 CPU-migrations # 0.000 M/sec
> 744421154 L1-data-Cache-Load-Referencees # 619.070 M/sec (scaled from 13.20%)
> 5220656 L1-data-Cache-Load-Misses # 4.342 M/sec (scaled from 13.28%)
> 438576 L1-data-Cache-Store-Referencees # 0.365 M/sec (scaled from 13.36%)
> <not counted> L1-data-Cache-Store-Misses
> 1976596 L1-data-Cache-Prefetch-Referencees # 1.644 M/sec (scaled from 13.44%)
> 1644021 L1-data-Cache-Prefetch-Misses # 1.367 M/sec (scaled from 13.52%)
> 764273224 L1-instruction-Cache-Load-Referencees # 635.579 M/sec (scaled from 13.53%)
> 17242789 L1-instruction-Cache-Load-Misses # 14.339 M/sec (scaled from 13.53%)
> <not counted> L1-instruction-Cache-Store-Referencees
> <not counted> L1-instruction-Cache-Store-Misses
> 372621 L1-instruction-Cache-Prefetch-Referencees # 0.310 M/sec (scaled from 13.53%)
> <not counted> L1-instruction-Cache-Prefetch-Misses
> 22844109 L2-Cache-Load-Referencees # 18.997 M/sec (scaled from 13.53%)
> 2235733 L2-Cache-Load-Misses # 1.859 M/sec (scaled from 13.53%)
> 23949920 L2-Cache-Store-Referencees # 19.917 M/sec (scaled from 13.46%)
> <not counted> L2-Cache-Store-Misses
> <not counted> L2-Cache-Prefetch-Referencees
> <not counted> L2-Cache-Prefetch-Misses
> 732364670 Data-TLB-Cache-Load-Referencees # 609.044 M/sec (scaled from 13.45%)
> 16516548 Data-TLB-Cache-Load-Misses # 13.735 M/sec (scaled from 13.42%)
> <not counted> Data-TLB-Cache-Store-Referencees
> <not counted> Data-TLB-Cache-Store-Misses
> <not counted> Data-TLB-Cache-Prefetch-Referencees
> <not counted> Data-TLB-Cache-Prefetch-Misses
> 766865920 Instruction-TLB-Cache-Load-Referencees # 637.736 M/sec (scaled from 13.42%)
> 19981 Instruction-TLB-Cache-Load-Misses # 0.017 M/sec (scaled from 13.40%)
> <not counted> Instruction-TLB-Cache-Store-Referencees
> <not counted> Instruction-TLB-Cache-Store-Misses
> <not counted> Instruction-TLB-Cache-Prefetch-Referencees
> <not counted> Instruction-TLB-Cache-Prefetch-Misses
> 308272002 Branch-Cache-Load-Referencees # 256.363 M/sec (scaled from 13.33%)
> 19226358 Branch-Cache-Load-Misses # 15.989 M/sec (scaled from 13.28%)
> <not counted> Branch-Cache-Store-Referencees
> <not counted> Branch-Cache-Store-Misses
> <not counted> Branch-Cache-Prefetch-Referencees
> <not counted> Branch-Cache-Prefetch-Misses

Looks useful - but it would be nice to not touch the default 'perf
stat' output but instead offer a few 'sets' of pre-defined events,
which can be specified in the event list, such as:

perf stat -e cache-events
perf stat -e all-cache-events
perf stat -e sw-events

Perhaps also a:

perf stat -e all

To get output from all counters that we know about.

Regex matching on event specifiers would be useful too - there's
already regex code in perf-report, see the --parent option.

Ingo


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