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(-)
--
next 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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