Commit-ID: cc2ef584a863b7c8033b78723cd253ca47e9a589 Gitweb: https://git.kernel.org/tip/cc2ef584a863b7c8033b78723cd253ca47e9a589 Author: Jin Yao <yao....@linux.intel.com> AuthorDate: Wed, 10 Jan 2018 23:00:33 +0800 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Wed, 17 Jan 2018 10:23:37 -0300
perf script: Remove the time slices number limitation Previously it was only allowed to use at most 10 time slices in 'perf script --time'. This patch removes this limitation. For example, following command line is OK (12 time slices) perf script --time 1%/1,1%/2,1%/3,1%/4,1%/5,1%/6,1%/7,1%/8,1%/9,1%/10,1%/11,1%/12 Signed-off-by: Jin Yao <yao....@linux.intel.com> Suggested-by: Arnaldo Carvalho de Melo <a...@redhat.com> Reviewed-by: Jiri Olsa <jo...@redhat.com> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: Andi Kleen <a...@linux.intel.com> Cc: Kan Liang <kan.li...@intel.com> Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/1515596433-24653-9-git-send-email-yao....@linux.intel.com [ No need to check for NULL to call free, use zfree ] Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/Documentation/perf-script.txt | 10 +++++----- tools/perf/builtin-script.c | 16 ++++++++++++---- 2 files changed, 17 insertions(+), 9 deletions(-) diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 806ec63..7730c1d 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -351,19 +351,19 @@ include::itrace.txt[] to end of file. Also support time percent with multipe time range. Time string is - 'a%/n,b%/m,...' or 'a%-b%,c%-%d,...'. The maximum number of slices is 10. + 'a%/n,b%/m,...' or 'a%-b%,c%-%d,...'. For example: - Select the second 10% time slice + Select the second 10% time slice: perf script --time 10%/2 - Select from 0% to 10% time slice + Select from 0% to 10% time slice: perf script --time 0%-10% - Select the first and second 10% time slices + Select the first and second 10% time slices: perf script --time 10%/1,10%/2 - Select from 0% to 10% and 30% to 40% slices + Select from 0% to 10% and 30% to 40% slices: perf script --time 0%-10%,30%-40% --max-blocks:: diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index ac78191..3499d68 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -1480,8 +1480,6 @@ static int perf_sample__fprintf_synth(struct perf_sample *sample, return 0; } -#define PTIME_RANGE_MAX 10 - struct perf_script { struct perf_tool tool; struct perf_session *session; @@ -1496,7 +1494,8 @@ struct perf_script { struct thread_map *threads; int name_width; const char *time_str; - struct perf_time_interval ptime_range[PTIME_RANGE_MAX]; + struct perf_time_interval *ptime_range; + int range_size; int range_num; }; @@ -3445,6 +3444,13 @@ int cmd_script(int argc, const char **argv) if (err < 0) goto out_delete; + script.ptime_range = perf_time__range_alloc(script.time_str, + &script.range_size); + if (!script.ptime_range) { + err = -ENOMEM; + goto out_delete; + } + /* needs to be parsed after looking up reference time */ if (perf_time__parse_str(script.ptime_range, script.time_str) != 0) { if (session->evlist->first_sample_time == 0 && @@ -3457,7 +3463,7 @@ int cmd_script(int argc, const char **argv) } script.range_num = perf_time__percent_parse_str( - script.ptime_range, PTIME_RANGE_MAX, + script.ptime_range, script.range_size, script.time_str, session->evlist->first_sample_time, session->evlist->last_sample_time); @@ -3476,6 +3482,8 @@ int cmd_script(int argc, const char **argv) flush_scripting(); out_delete: + zfree(&script.ptime_range); + perf_evlist__free_stats(session->evlist); perf_session__delete(session);
