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authorSu Wang <su.z.wang@ericsson.com>2019-03-21 00:14:14 -0400
committerDamjan Marion <dmarion@me.com>2019-03-26 11:44:43 +0000
commit7297f47088274b0759dbef5d2c19d564d32521e6 (patch)
tree0c3b7ddc6baec33e2503874f34aaebd40e12f320 /src/vnet
parentcb36a1dbaf29babb536bd10d0ff3ff35ca57bfa3 (diff)
perfmon: fix pmc hw indices out-dated when multiple pmc
When adding two or more events using a single "set pmc", the pmc hardware indices might be out-dated due to kernel reschdeduling the perf_event hardware counters. E.g. set pmc cpu-cycles cache-misses Solution: Open and enable all the events first, then aquire the indices from the kernel. Change-Id: I6913a871ab169e3b2855ac6159f527a1fca343e9 Signed-off-by: Su Wang <su.z.wang@ericsson.com>
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