Commits
Jiri Olsa committed 0d79f8b9318
perf stat: Add -a as default target Boris asked for default -a option in case we monitor only uncore events. While implementing that I thought it might be actually useful to make it overall default. Running 'perf stat' will now collect system wide data. Committer note: Testing it: # perf stat ^C Performance counter stats for 'system wide': 3571.559178 cpu-clock (msec) # 4.000 CPUs utilized 3,346 context-switches # 0.937 K/sec 277 cpu-migrations # 0.078 K/sec 57,271 page-faults # 0.016 M/sec 4,535,633,835 cycles # 1.270 GHz 6,389,736,516 instructions # 1.41 insn per cycle 1,541,293,875 branches # 431.547 M/sec 14,526,396 branch-misses # 0.94% of all branches 0.892950118 seconds time elapsed # Requested-and-Acked-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170217170034.GB15389@krava Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>