From: Robert Richter <robert.richter@amd.com>
To: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@elte.hu>,
Stephane Eranian <eranian@google.com>,
LKML <linux-kernel@vger.kernel.org>,
Robert Richter <robert.richter@amd.com>
Subject: [PATCH 0/4] perf tools: Add support for IBS
Date: Thu, 15 Dec 2011 18:23:40 +0100 [thread overview]
Message-ID: <1323969824-9711-1-git-send-email-robert.richter@amd.com> (raw)
This patch series adds perf tool support for IBS. It is related to the
kernel patches I sent out recently.
IBS is implemented using dynamic pmu allocation. Thus, esp. event
selection and sample encoding requires handling of dynamically
generated pmu identifiers that can be queried in sysfs. For ibs there
exists 2 pmus:
/sys/bus/event_source/devices/ibs_op/type
/sys/bus/event_source/devices/ibs_fetch/type
Lin's patch implements a new syntax to specify events of dynamically
allocated pmus. This can be used to specify ibs events for perf
record, etc., for example:
perf record -e ibs_op:r0 -c 100000 -R -a <command>
perf record -e ibs_fetch:r0 -c 100000 -R -a <command>
With patch #2 dynamically generated pmu mappings are added to the
perf.data header. This information is required to decode samples and
to find the originating pmu it is comming from. Since the information
in sysfs may change we need to store it in the header.
A generic perl handler is added to process IBS events with perf
script. There was only support for tracepoints. The following perf
script commands can be used to collect and display IBS samples:
perf script ibs ibs_op <command>
perf script ibs ibs_fetch <command>
perf script record ibs ibs_op -c 500000 <command>
perf script report ibs
perf script record ibs ibs_op -c 500000 <command> | perf script report ibs
-Robert
Lin Ming (1):
perf tool: Parse general/raw events from sysfs
Robert Richter (3):
perf tools: Add pmu mappings to header information
perf script: Add generic perl handler to process events
perf script: Add script to collect and display IBS samples
tools/perf/scripts/perl/bin/ibs-record | 23 +++++
tools/perf/scripts/perl/bin/ibs-report | 6 +
tools/perf/scripts/perl/ibs.pl | 47 +++++++++
tools/perf/util/header.c | 99 ++++++++++++++++++++
tools/perf/util/header.h | 1 +
tools/perf/util/parse-events.c | 84 ++++++++++++++++-
.../perf/util/scripting-engines/trace-event-perl.c | 73 +++++++++++++-
7 files changed, 325 insertions(+), 8 deletions(-)
create mode 100644 tools/perf/scripts/perl/bin/ibs-record
create mode 100644 tools/perf/scripts/perl/bin/ibs-report
create mode 100644 tools/perf/scripts/perl/ibs.pl
--
1.7.7
next reply other threads:[~2011-12-15 17:30 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-15 17:23 Robert Richter [this message]
2011-12-15 17:23 ` [PATCH 1/4] perf tool: Parse general/raw events from sysfs Robert Richter
2011-12-21 16:52 ` Robert Richter
2012-01-02 11:07 ` Stephane Eranian
2011-12-15 17:23 ` [PATCH 2/4] perf tools: Add pmu mappings to header information Robert Richter
2011-12-15 17:23 ` [PATCH 3/4] perf script: Add generic perl handler to process events Robert Richter
2011-12-29 20:56 ` [tip:perf/core] " tip-bot for Robert Richter
2011-12-15 17:23 ` [PATCH 4/4] perf script: Add script to collect and display IBS samples Robert Richter
2011-12-15 19:19 ` David Ahern
2011-12-15 23:47 ` Robert Richter
2011-12-23 10:33 ` Ingo Molnar
2011-12-23 11:19 ` Robert Richter
2011-12-23 13:53 ` Ingo Molnar
2011-12-23 14:14 ` Peter Zijlstra
2011-12-23 14:40 ` Ingo Molnar
2011-12-23 16:17 ` Robert Richter
2011-12-23 16:39 ` Ingo Molnar
2011-12-23 16:50 ` Robert Richter
2011-12-30 9:55 ` Ingo Molnar
2012-02-02 11:21 ` Robert Richter
2012-03-08 12:19 ` Ingo Molnar
2012-03-09 11:41 ` Robert Richter
2012-03-21 18:13 ` Robert Richter
2012-03-22 7:51 ` Ingo Molnar
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