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.txt23
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt
index e90c59c6d815..15e8b48077ba 100644
--- a/tools/perf/Documentation/perf.data-file-format.txt
+++ b/tools/perf/Documentation/perf.data-file-format.txt
@@ -238,6 +238,29 @@ struct auxtrace_index {
struct auxtrace_index_entry entries[PERF_AUXTRACE_INDEX_ENTRY_COUNT];
};
+ HEADER_STAT = 19,
+
+This is merely a flag signifying that the data section contains data
+recorded from perf stat record.
+
+ HEADER_CACHE = 20,
+
+Description of the cache hierarchy. Based on the Linux sysfs format
+in /sys/devices/system/cpu/cpu*/cache/
+
+ u32 version Currently always 1
+ u32 number_of_cache_levels
+
+struct {
+ u32 level;
+ u32 line_size;
+ u32 sets;
+ u32 ways;
+ struct perf_header_string type;
+ struct perf_header_string size;
+ struct perf_header_string map;
+}[number_of_cache_levels];
+
other bits are reserved and should ignored for now
HEADER_FEAT_BITS = 256,