1. 17 Dec, 2015 22 commits
  2. 16 Dec, 2015 4 commits
  3. 15 Dec, 2015 1 commit
    • Namhyung Kim's avatar
      perf record: Add record.build-id config option · 7a29c087
      Namhyung Kim authored
      Post processing at 'perf record' takes a long time on big machines.
      
      What it does is to find the build-id of binaries found in the event
      stream, so that it can make sure, at 'report' time, that the symtabs (be
      it ELF, kallsyms, etc) being used to resolve symbols are the ones
      matching the binaries found at 'record' time.
      
      Sometimes we just want to skip this processing of events at the end of
      the session to get quicker results, making sure the binaries haven't
      changed from 'record' to 'report' time.
      
      Add a new config option to control this behavior.
      
      The record.build-id config variable can have one of the following
      values:
      
       - cache: post-process data and save/update the binaries into the
                build-id cache (in ~/.debug).  This is the default.
       - no-cache: post-process the data but not update the build-id cache.
                   Same effect as using the -N option.
       - skip: skip post-processing and do not update the cache.
               Same effect as using the -B option.
      Reported-and-Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Taeung Song <treeze.taeung@gmail.com>
      Link: http://lkml.kernel.org/r/1450144196-22957-1-git-send-email-namhyung@kernel.org
      [ Added some more text to the documentation ]
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      7a29c087
  4. 14 Dec, 2015 13 commits