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| author | Jin Yao <yao.jin@linux.intel.com> | 2018-01-10 23:00:27 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-01-17 10:23:34 -0300 |
| commit | 1e2778e91616086177a255f3fc8c72ecaa564ae6 (patch) | |
| tree | 6b7414aee4d24eca8241698219f80d3cce52d413 /tools/perf/builtin-script.c | |
| parent | eb0b419eff8cf51af8e16cc8c5d2a92d19824266 (diff) | |
| download | linux-1e2778e91616086177a255f3fc8c72ecaa564ae6.tar.gz | |
perf script: Improve error msg when no first/last sample time found
The following message will be returned to user when executing 'perf script --time' if perf data file doesn't contain the first/last sample time. "HINT: no first/last sample time found in perf data. Please use latest perf binary to execute 'perf record' (if '--buildid-all' is enabled, needs to set '--timestamp-boundary')." Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Reviewed-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1515596433-24653-3-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
| -rw-r--r-- | tools/perf/builtin-script.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 08bc818f371b..ac781916e51e 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -3449,7 +3449,9 @@ int cmd_script(int argc, const char **argv) if (perf_time__parse_str(script.ptime_range, script.time_str) != 0) { if (session->evlist->first_sample_time == 0 && session->evlist->last_sample_time == 0) { - pr_err("No first/last sample time in perf data\n"); + pr_err("HINT: no first/last sample time found in perf data.\n" + "Please use latest perf binary to execute 'perf record'\n" + "(if '--buildid-all' is enabled, please set '--timestamp-boundary').\n"); err = -EINVAL; goto out_delete; } |