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perf cpumap: Add comments to aggr_cpu_id()

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This code is already tested in topology.c.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-12-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-01-04 22:13:14 -08:00 committed by Arnaldo Carvalho de Melo
parent 86d94048e2
commit 49679da388
1 changed files with 9 additions and 0 deletions
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9
tools/perf/util/cpumap.h
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@ -7,11 +7,20 @@
#include <internal/cpumap.h>
#include <perf/cpumap.h>
/** Identify where counts are aggregated, -1 implies not to aggregate. */
struct aggr_cpu_id {
/** A value in the range 0 to number of threads. */
int thread;
/** The numa node X as read from /sys/devices/system/node/nodeX. */
int node;
/**
* The socket number as read from
* /sys/devices/system/cpu/cpuX/topology/physical_package_id.
*/
int socket;
/** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */
int die;
/** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */
int core;
};