tree 6c8a789c6b8de260f9e65b8a310714d834206d85
parent a9980a6dbb9efd154b032ad729c869784302f361
author Arnaldo Carvalho de Melo <acme@redhat.com> 1519925156 -0300
committer Arnaldo Carvalho de Melo <acme@redhat.com> 1520254724 -0300

perf top: Allow asking for the maximum allowed sample rate

Add the handy '-F max' shortcut, just introduced to 'perf record', to
reading and using the kernel.perf_event_max_sample_rate value as the
user supplied sampling frequency:

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-hz04f296zccknnb5at06a6q0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>