From: Andi Kleen <[email protected]> Document STAT and CACHE header entries.
Signed-off-by: Andi Kleen <[email protected]> --- tools/perf/Documentation/perf.data-file-format.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) 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, -- 2.13.6
