Messages in this thread Patch in this message | | | From | Sukadev Bhattiprolu <> | Subject | [PATCH v13 10/14] perf, tools: Add override support for event list CPUID | Date | Tue, 2 Jun 2015 10:12:10 -0700 |
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From: Andi Kleen <ak@linux.intel.com>
Add a PERF_CPUID variable to override the CPUID of the current CPU. This is useful for testing, so that all event lists can be tested on a single system.
Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
v2: Fix double free in earlier version. Print actual CPUID being used with verbose option. --- tools/perf/util/pmu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 8d91fa7..2cf03a7 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -481,10 +481,16 @@ static int pmu_add_cpu_aliases(void *data) struct pmu_event *pe; char *cpuid; - cpuid = get_cpuid_str(); + cpuid = getenv("PERF_CPUID"); + if (cpuid) + cpuid = strdup(cpuid); + if (!cpuid) + cpuid = get_cpuid_str(); if (!cpuid) return 0; + pr_debug("Using CPUID %s\n", cpuid); + i = 0; while (1) { map = &pmu_events_map[i++]; -- 1.7.9.5
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