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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Wu Fengguang <fengguang.wu@intel.com>,
	Pierre Ossman <drzeus@drzeus.cx>, Pekka Paalanen <pq@iki.fi>
Subject: [PATCH 0/4] [GIT PULL] memory saving ring buffer for tip/tracing/ftrace
Date: Wed, 11 Mar 2009 22:37:20 -0400	[thread overview]
Message-ID: <20090312023720.144716747@goodmis.org> (raw)

Ingo,

This patch series implements a better memory management by the
ring buffer. It only allocates the buffers for the online CPUS, as well
as keeps the buffers to a minimum size until they are used.

Please pull the latest tip/tracing/ftrace tree, which can be found at:

  git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
tip/tracing/ftrace


Steven Rostedt (4):
      tracing: keep ring buffer to minimum size till used
      tracing: expand the ring buffers when an event is activated
      tracing: fix trace_wait to know to wait on all cpus or just one
      ring-buffer: only allocate buffers for online cpus

----
 kernel/trace/ring_buffer.c  |  266 +++++++++++++++++++++++++++++++++++--------
 kernel/trace/trace.c        |  118 +++++++++++++++----
 kernel/trace/trace.h        |    3 +
 kernel/trace/trace_events.c |    8 ++
 4 files changed, 319 insertions(+), 76 deletions(-)

-- 

             reply	other threads:[~2009-03-12  2:39 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-12  2:37 Steven Rostedt [this message]
2009-03-12  2:37 ` [PATCH 1/4] tracing: keep ring buffer to minimum size till used Steven Rostedt
2009-03-12  3:26   ` Andrew Morton
2009-03-12 13:25     ` Steven Rostedt
2009-03-12 15:01   ` Frederic Weisbecker
2009-03-12 15:14     ` Steven Rostedt
2009-03-12  2:37 ` [PATCH 2/4] tracing: expand the ring buffers when an event is activated Steven Rostedt
2009-03-12  2:37 ` [PATCH 3/4] tracing: fix trace_wait to know to wait on all cpus or just one Steven Rostedt
2009-03-12  2:37 ` [PATCH 4/4] ring-buffer: only allocate buffers for online cpus Steven Rostedt
2009-03-12  3:32   ` Andrew Morton
2009-03-12 13:29     ` Steven Rostedt
2009-03-12  7:31   ` KOSAKI Motohiro
2009-03-12 13:38     ` Steven Rostedt
2009-03-12 23:47       ` KOSAKI Motohiro
2009-03-12  7:07 ` [PATCH 0/4] [GIT PULL] memory saving ring buffer for tip/tracing/ftrace Pierre Ossman
2009-03-12  7:34   ` KOSAKI Motohiro
2009-03-12  9:20     ` Pierre Ossman
2009-03-12 13:39       ` Steven Rostedt
2009-03-12 10:47   ` Neil Horman
2009-03-12 12:12     ` Pierre Ossman
2009-03-12 13:12       ` Neil Horman

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