• Ian Rogers's avatar
    perf smt: Compute SMT from topology · 09b73fe9
    Ian Rogers authored
    The topology records sibling threads. Rather than computing SMT using
    siblings in sysfs, reuse the values in topology. This only applies
    when the file smt/active isn't available.
    Signed-off-by: default avatarIan Rogers <irogers@google.com>
    Cc: Ahmad Yasin <ahmad.yasin@intel.com>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Caleb Biggers <caleb.biggers@intel.com>
    Cc: Florian Fischer <florian.fischer@muhq.space>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: James Clark <james.clark@arm.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: John Garry <john.garry@huawei.com>
    Cc: Kan Liang <kan.liang@linux.intel.com>
    Cc: Kshipra Bopardikar <kshipra.bopardikar@intel.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Miaoqian Lin <linmq006@gmail.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Perry Taylor <perry.taylor@intel.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Thomas Richter <tmricht@linux.ibm.com>
    Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
    Link: https://lore.kernel.org/r/20220831174926.579643-4-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    09b73fe9
smt.c 481 Bytes