lkml.org 
[lkml]   [2014]   [Sep]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/2] perf kvm stat live: Copy events
Date
Hello,

This is a second attempt to fix 'perf kvm stat live' crash when it tries
to parse events that have been already overwritten by the kernel.
Previous thread: https://lkml.org/lkml/2014/9/12/450

Patches
- 1/2 is patch by David Ahern (https://lkml.org/lkml/2013/9/6/388)
rebased to the current upstream (hope I did it right). It adds an option
to copy events when they are pushed to the samples queue.
- 2/2 enables the copying for perf kvm stat live.

Looks like we have to live with possibility to get thousands malloc()s/free()s
per second...

Alexander Yarygin (2):
perf session: 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 | 12 +++++++++---
tools/perf/util/ordered-events.h | 2 +-
tools/perf/util/session.c | 12 +++++++++---
tools/perf/util/session.h | 1 +
5 files changed, 21 insertions(+), 7 deletions(-)

--
1.9.1



\
 
 \ /
  Last update: 2014-09-18 19:41    [W:0.245 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site