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authorJin Yao <[email protected]>2021-05-14 20:29:47 +0800
committerArnaldo Carvalho de Melo <[email protected]>2021-05-17 10:55:10 -0300
commitf7d74ce32fc1b9b3cbf58c015009d1f616e60c23 (patch)
treec1cf448b3a33bab5d2da68e7678faea9ac5dfbe7 /tools/perf/scripts/python/stackcollapse.py
parent1ac9e0b5731ad732ddc045cfcfd6739e4e12f3b5 (diff)
perf header: Support HYBRID_TOPOLOGY feature
It is useful to let the user know about the hybrid topology. Add the HYBRID_TOPOLOGY feature in header to indicate the core CPUs and the atom CPUs. With this patch a perf.data generated on a hybrid platform reports the hybrid CPU list: root@otcpl-adl-s-2:~# perf report --header-only -I ... # hybrid cpu system: # cpu_core cpu list : 0-15 # cpu_atom cpu list : 16-23 For a perf.data generated on a non-hybrid platform, reports a message that HYBRID_TOPOLOGY is missing: root@kbl-ppc:~# perf report --header-only -I ... # missing features: TRACING_DATA BRANCH_STACK GROUP_DESC AUXTRACE STAT CLOCKID DIR_FORMAT COMPRESSED CLOCK_DATA HYBRID_TOPOLOGY Signed-off-by: Jin Yao <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jin Yao <[email protected]> Cc: Kan Liang <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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