diff options
| author |   Jin Yao <yao.jin@linux.intel.com> | 2019-12-20 09:37:19 +0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-12-20 18:49:27 -0300 |
| commit | 0feba17bd7ee3b7e03d141f119049dcc23efa94e (patch) | |
| tree | 5c63acd22c41f81939a169e15e0446fe434c9c6f /tools/perf | |
| parent | tools lib traceevent: Fix memory leakage in filter_event (diff) | |
| download | linux-dev-0feba17bd7ee3b7e03d141f119049dcc23efa94e.tar.xz linux-dev-0feba17bd7ee3b7e03d141f119049dcc23efa94e.zip | |
perf report: Fix incorrectly added dimensions as switch perf data file
We observed an issue that was some extra columns displayed after switching
perf data file in browser. The steps to reproduce:
1. perf record -a -e cycles,instructions -- sleep 3
2. perf report --group
3. In browser, we use hotkey 's' to switch to another perf.data
4. Now in browser, the extra columns 'Self' and 'Children' are displayed.
The issue is setup_sorting() executed again after repeat path, so dimensions
are added again.
This patch checks the last key returned from __cmd_report(). If it's
K_SWITCH_INPUT_DATA, skips the setup_sorting().
Fixes: ad0de0971b7f ("perf report: Enable the runtime switching of perf data file")
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20191220013722.20592-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-report.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 387311c67264..de988589d99b 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -1076,6 +1076,7 @@ int cmd_report(int argc, const char **argv) struct stat st; bool has_br_stack = false; int branch_mode = -1; + int last_key = 0; bool branch_call_mode = false; #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent" static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n" @@ -1450,7 +1451,8 @@ repeat: sort_order = sort_tmp; } - if (setup_sorting(session->evlist) < 0) { + if ((last_key != K_SWITCH_INPUT_DATA) && + (setup_sorting(session->evlist) < 0)) { if (sort_order) parse_options_usage(report_usage, options, "s", 1); if (field_order) @@ -1530,6 +1532,7 @@ repeat: ret = __cmd_report(&report); if (ret == K_SWITCH_INPUT_DATA) { perf_session__delete(session); + last_key = K_SWITCH_INPUT_DATA; goto repeat; } else ret = 0; |