From f290aa1ffa45ed7e37599840878b4dae68269ee1 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Thu, 1 Feb 2018 09:38:11 +0100 Subject: perf record: Fix period option handling Stephan reported we don't unset PERIOD sample type when --no-period is specified. Adding the unset check and reset PERIOD if --no-period is specified. Committer notes: Check the sample_type, it shouldn't have PERF_SAMPLE_PERIOD there when --no-period is used. Before: # perf record --no-period sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.018 MB perf.data (7 samples) ] # perf evlist -v cycles:ppp: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|PERIOD, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1 # After: [root@jouet ~]# perf record --no-period sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.019 MB perf.data (17 samples) ] [root@jouet ~]# perf evlist -v cycles:ppp: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1 [root@jouet ~]# Reported-by: Stephane Eranian Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Tested-by: Stephane Eranian Cc: Alexander Shishkin Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180201083812.11359-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/perf.h | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/perf.h') diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 2357f4ccc9c7..cfe46236a5e5 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -50,6 +50,7 @@ struct record_opts { bool sample_time_set; bool sample_cpu; bool period; + bool period_set; bool running_time; bool full_auxtrace; bool auxtrace_snapshot_mode; -- cgit v1.2.3