diff mbox series

[v2,11/48] perf cpumap: Add comments to aggr_cpu_id

Message ID 20211223074541.3318938-12-irogers@google.com (mailing list archive)
State New, archived
Headers show
Series Refactor perf cpumap | expand

Commit Message

Ian Rogers Dec. 23, 2021, 7:45 a.m. UTC 
This code is already tested in topology.c.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/cpumap.h | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index f0121dd4fdcb..edd93e1db36a 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -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;
 };