]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
perf tools: Disallow PMU events intel_pt and intel_bts until there is support
authorAdrian Hunter <adrian.hunter@intel.com>
Fri, 22 May 2015 11:53:58 +0000 (14:53 +0300)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 27 May 2015 15:21:45 +0000 (12:21 -0300)
commit9b5d1c29556989aa9dc1240566e78806ddefd160
tree8b73e743e3a0571249c313df8b81b62b8bbd6e90
parent2f80dd4488c204a4850554746eb31f25f5a84405
perf tools: Disallow PMU events intel_pt and intel_bts until there is support

Disallow PMU events intel_pt and intel_bts until the tools support them.

By default any PMU is selectable as an event but until the tools have
intel_pt and intel_bts support using them would result in no data being
recorded without any indication as to why.

Before the change:

    $ perf record -e intel_bts// sleep 1
    [ perf record: Woken up 1 times to write data ]
    [ perf record: Captured and wrote 0.008 MB perf.data ]
    $ perf report --stdio
    Error:
    The perf.data file has no samples!

After the change:

    $ perf record -e intel_bts// sleep 1
    invalid or unsupported event: 'intel_bts//'
    Run 'perf list' for a list of valid events

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1432295653-13989-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/pmu.c