From: Robert Richter <robert.richter@amd.com>
Date: Fri, 25 Nov 2011 14:05:25 +0000 (+0100)
Subject: perf script: Implement option for system-wide profiling
X-Git-Tag: v3.3-rc1~192^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=317df650c588bb9091b1fa0b5d726fe485aad88e;p=pandora-kernel.git

perf script: Implement option for system-wide profiling

The option is documented in man perf-script but was not yet implemented:

       -a
           Force system-wide collection. Scripts run without a
           <command> normally use -a by default, while scripts run
           with a <command> normally don't - this option allows the
           latter to be run in system-wide mode.

As with perf record you now can profile in system-wide mode for the
runtime of a given command, e.g.:

 # perf script -a syscall-counts sleep 2

Cc: Ingo Molnar <mingo@elte.hu>
Link: http://lkml.kernel.org/r/1322229925-10075-1-git-send-email-robert.richter@amd.com
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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