summaryrefslogtreecommitdiffstats
path: root/tools/perf/Documentation/perf.data-file-format.txt
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/Documentation/perf.data-file-format.txt')
-rw-r--r--tools/perf/Documentation/perf.data-file-format.txt17
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt
index 9ee96640744e..fbee9e580ee4 100644
--- a/tools/perf/Documentation/perf.data-file-format.txt
+++ b/tools/perf/Documentation/perf.data-file-format.txt
@@ -402,6 +402,23 @@ struct {
u64 clockid_time_ns;
};
+ HEADER_HYBRID_TOPOLOGY = 30,
+
+Indicate the hybrid CPUs. The format of data is as below.
+
+struct {
+ u32 nr;
+ struct {
+ char pmu_name[];
+ char cpus[];
+ } [nr]; /* Variable length records */
+};
+
+Example:
+ hybrid cpu system:
+ cpu_core cpu list : 0-15
+ cpu_atom cpu list : 16-23
+
other bits are reserved and should ignored for now
HEADER_FEAT_BITS = 256,