• Peter Zijlstra's avatar
    perf record: Add clockid parameter · 814c8c38
    Peter Zijlstra authored
    Teach perf-record about the new perf_event_attr::{use_clockid, clockid}
    fields. Add a simple parameter to set the clock (if any) to be used for
    the events to be recorded into the data file.
    
    Since we store the entire perf_event_attr in the EVENT_DESC section we
    also already store the used clockid in the data file.
    Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
    Acked-by: default avatarDavid Ahern <dsahern@gmail.com>
    Cc: "H. Peter Anvin" <hpa@zytor.com>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: John Stultz <john.stultz@linaro.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Yunlong Song <yunlong.song@huawei.com>
    Link: http://lkml.kernel.org/r/20150407154851.GR23123@twins.programming.kicks-ass.net
    [ Conditionally define CLOCK_BOOTTIME, at least rhel6 doesn't have it - dsahern
      Ditto for CLOCK_MONOTONIC_RAW, sles11sp2 doesn't have it - yunlong.song ]
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    814c8c38
perf-record.txt 8.81 KB