Commit-ID: ffec516976f64b4e3e59ba1bb8a5020008cc678a Gitweb: http://git.kernel.org/tip/ffec516976f64b4e3e59ba1bb8a5020008cc678a Author: Sonny Rao <sonnyrao@xxxxxxxxxxxxxxxxxx> AuthorDate: Thu, 14 Oct 2010 20:51:00 -0500 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> CommitDate: Sat, 23 Oct 2010 15:31:20 -0200 perf tools: Document event modifiers Existing documentation doesn't discuss event modifiers, so add a description of what's currently possible to the documentation of perf-list. Cc: Ingo Molnar <mingo@xxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: Robert Richter <robert.richter@xxxxxxx> LKML-Reference: <1287107460-12112-1-git-send-email-sonnyrao@xxxxxxxxxxxxxxxxxx> Signed-off-by: Sonny Rao <sonnyrao@xxxxxxxxxxxxxxxxxx> Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- tools/perf/Documentation/perf-list.txt | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index 43e3dd2..399751b 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -15,6 +15,23 @@ DESCRIPTION This command displays the symbolic event types which can be selected in the various perf commands with the -e option. +EVENT MODIFIERS +--------------- + +Events can optionally have a modifer by appending a colon and one or +more modifiers. Modifiers allow the user to restrict when events are +counted with 'u' for user-space, 'k' for kernel, 'h' for hypervisor. + +The 'p' modifier can be used for specifying how precise the instruction +address should be. The 'p' modifier is currently only implemented for +Intel PEBS and can be specified multiple times: + 0 - SAMPLE_IP can have arbitrary skid + 1 - SAMPLE_IP must have constant skid + 2 - SAMPLE_IP requested to have 0 skid + 3 - SAMPLE_IP must have 0 skid + +The PEBS implementation now supports up to 2. + RAW HARDWARE EVENT DESCRIPTOR ----------------------------- Even when an event is not available in a symbolic form within perf right now, -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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