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authorJiri Olsa <jolsa@kernel.org>2018-03-07 16:50:03 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-03-08 11:30:41 -0300
commite971a5a8399a5e84164239a5c2d59b8a51314241 (patch)
tree19233e7a318105baecaf93fef2e6a678c45c1f6e /tools/perf/util/header.c
parent8ef278bb9305e1269f236013718801fe06a183d1 (diff)
perf report: Display perf.data header info
Display more header info from perf.data file, following values: $ perf report -i perf.data --header-only ... # header version : 1 # data offset : 424 # data size : 3364280 # feat offset : 3364704 It's handy for debuging. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180307155020.32613-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.c')
-rw-r--r--tools/perf/util/header.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index a326e0d8b5b6..e0c3cad0fd8d 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2318,7 +2318,12 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
if (ret == -1)
return -1;
- fprintf(fp, "# captured on: %s", ctime(&st.st_ctime));
+ fprintf(fp, "# captured on : %s", ctime(&st.st_ctime));
+
+ fprintf(fp, "# header version : %u\n", header->version);
+ fprintf(fp, "# data offset : %" PRIu64 "\n", header->data_offset);
+ fprintf(fp, "# data size : %" PRIu64 "\n", header->data_size);
+ fprintf(fp, "# feat offset : %" PRIu64 "\n", header->feat_offset);
perf_header__process_sections(header, fd, &hd,
perf_file_section__fprintf_info);