From: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
David Ahern <dsahern@gmail.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@redhat.com>,
Mike Galbraith <efault@gmx.de>,
Namhyung Kim <namhyung.kim@lge.com>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Stephane Eranian <eranian@google.com>
Subject: [PATCH v3 0/2] perf kvm stat live: Copy events
Date: Thu, 2 Oct 2014 20:38:54 +0400 [thread overview]
Message-ID: <1412267936-19827-1-git-send-email-yarygin@linux.vnet.ibm.com> (raw)
Hello,
This is a fix of 'perf kvm stat live' crash when it tries
to parse events that have been already overwritten by the kernel.
Patches
- 1/2 adds an option to copy events when they are pushed to the samples queue. The patch is based on the patch by David Ahern (https://lkml.org/lkml/2013/9/6/388)
- 2/2 enables the copying for perf kvm stat live.
Changes in v3:
- move repetitive code into functions
Changes in v2:
- the option to copy events is now a part of ordered_events
- use memdup() instead malloc()/memcpy()
- events alocations are under the report.queue-size limit
Alexander Yarygin (2):
perf tools: Add option to copy events when queueing
perf kvm stat live: Enable events copying
tools/perf/builtin-kvm.c | 1 +
tools/perf/util/ordered-events.c | 49 ++++++++++++++++++++++++++++++++++++----
tools/perf/util/ordered-events.h | 10 +++++++-
tools/perf/util/session.c | 5 ++--
4 files changed, 57 insertions(+), 8 deletions(-)
--
1.9.1
next reply other threads:[~2014-10-02 16:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-02 16:38 Alexander Yarygin [this message]
2014-10-02 16:38 ` [PATCH 1/2] perf tools: Add option to copy events when queueing Alexander Yarygin
2014-10-03 4:34 ` Ingo Molnar
2014-10-03 6:50 ` Jiri Olsa
2014-10-03 8:47 ` Ingo Molnar
2014-10-03 14:25 ` Alexander Yarygin
2014-10-03 7:33 ` Jiri Olsa
2014-10-02 16:38 ` [PATCH 2/2] perf kvm stat live: Enable events copying Alexander Yarygin
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