[PATCH v5 0/2] perf tools: Add PMU alias support
From: Jin Yao <hidden>
Date: 2021-08-17 05:21:15
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A perf uncore PMU may have two PMU names, a real name and an alias name. With this patch set, the perf tool can monitor the PMU with either the real name or the alias. Use the real name, $ perf stat -e uncore_cha_2/event=1/ -x, 4044879584,,uncore_cha_2/event=1/,2528059205,100.00,, Use the alias, $ perf stat -e uncore_type_0_2/event=1/ -x, 3659675336,,uncore_type_0_2/event=1/,2287306455,100.00,, v5: --- 1. Don't use strdup in find functions (pmu_find_real_name and pmu_find_alias_name). Just return name and keep the 'pmu->name = strdup(name);' in pmu_lookup. 2. Remove invalid comment for alias_name in struct perf_pmu. v4: --- 1. Fix memory leaks in pmu_lookup. 2. Rebase to perf/core. v3: --- 1. Use fgets() to replace fscanf(). 2. Resource cleanup. v2: --- Add test case to verify the real name and alias name having same effect. Jin Yao (1): perf tests: Test for PMU alias Kan Liang (1): perf pmu: Add PMU alias support tools/perf/arch/x86/util/pmu.c | 129 +++++++++++++++++++++++++++++++- tools/perf/tests/parse-events.c | 92 +++++++++++++++++++++++ tools/perf/util/parse-events.y | 3 +- tools/perf/util/pmu.c | 28 ++++++- tools/perf/util/pmu.h | 5 ++ 5 files changed, 252 insertions(+), 5 deletions(-) -- 2.17.1