Commit-ID: e971a5a8399a5e84164239a5c2d59b8a51314241 Gitweb: https://git.kernel.org/tip/e971a5a8399a5e84164239a5c2d59b8a51314241 Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Wed, 7 Mar 2018 16:50:03 +0100 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Thu, 8 Mar 2018 11:30:41 -0300
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 <jo...@kernel.org> Tested-by: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/20180307155020.32613-3-jo...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/header.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) 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);
