Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 06/15] perf evsel: Print state of perf_event_attr.write_backward | Date | Tue, 10 May 2016 12:15:16 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
Now we can see if it is set when using verbose mode in various tools, such as 'perf test':
# perf test -vv back 45: Test backward reading from ring buffer : --- start --- <SNIP> ------------------------------------------------------------ perf_event_attr: type 2 size 112 config 0x98 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW disabled 1 mmap 1 comm 1 task 1 sample_id_all 1 exclude_guest 1 mmap2 1 comm_exec 1 write_backward 1 ------------------------------------------------------------ sys_perf_event_open: pid 20911 cpu -1 group_fd -1 flags 0x8 <SNIP> ---- end ---- Test backward reading from ring buffer: Ok #
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-kxv05kv9qwl5of7rzfeiiwbv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/evsel.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 3371721a05f2..a23f54793e51 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1316,6 +1316,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, PRINT_ATTRf(comm_exec, p_unsigned); PRINT_ATTRf(use_clockid, p_unsigned); PRINT_ATTRf(context_switch, p_unsigned); + PRINT_ATTRf(write_backward, p_unsigned); PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned); PRINT_ATTRf(bp_type, p_unsigned); -- 2.5.5
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