perf shell completion: Support completion of metrics/metricgroups
Allow metrics to expand for -M or --metrics options. Committer testing: # grep -m1 'model name' /proc/cpuinfo model name : AMD Ryzen 9 5950X 16-Core Processor # Before: Just expansion of files/directories in the pwd are expanded: # . tools/perf/perf-completion.sh # perf stat -M b block/ build/ # perf stat -M b After: # . tools/perf/perf-completion.sh # perf stat -M all_l2_cache_accesses all_remote_links_outbound data_fabric l1_itlb_misses l2_cache_misses_from_l2_hwpf macro_ops_dispatched tlb all_l2_cache_hits branch_misprediction_ratio decoder l2_cache l3_cache nps1_die_to_dram all_l2_cache_misses branch_prediction ic_fetch_miss_ratio l2_cache_accesses_from_l2_hwpf l3_read_miss_latency op_cache_fetch_miss_ratio # perf stat -M branch_ branch_misprediction_ratio branch_prediction # perf stat -M branch_prediction -a sleep 1 Performance counter stats for 'system wide': 115,079,765 ex_ret_brn # 4.0 % branch_misprediction_ratio 4,561,456 ex_ret_brn_misp 1.015925106 seconds time elapsed # Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20230905181554.3202873-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -202,6 +202,10 @@ __perf_main ()
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$prev_skip_opts == @(record|stat|top) ]]; then
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local evts=$($cmd list --raw-dump pfm)
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__perfcomp "$evts" "$cur"
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elif [[ $prev == @("-M"|"--metrics") &&
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$prev_skip_opts == @(stat) ]]; then
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local metrics=$($cmd list --raw-dump metric metricgroup)
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__perfcomp "$metrics" "$cur"
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else
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# List subcommands for perf commands
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if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|
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