From: Ingo Molnar <mingo@elte.hu>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH][RFC] vsprintf: unify the format decoding layer for its 3 users
Date: Fri, 27 Feb 2009 09:20:35 +0100 [thread overview]
Message-ID: <20090227082035.GD3609@elte.hu> (raw)
In-Reply-To: <20090226224656.5785de9e.akpm@linux-foundation.org>
* Andrew Morton <akpm@linux-foundation.org> wrote:
> On Fri, 27 Feb 2009 07:19:37 +0100 Frederic Weisbecker <fweisbec@gmail.com> wrote:
>
> > An new optimization is making its way to ftrace. Its purpose
> > is to make ftrace_printk() consuming less memory and be
> > faster.
> >
> > Written by Lai Jiangshan, the approach is to delay the
> > formatting job from tracing time to output time. Currently,
> > a call to ftrace_printk will format the whole string and
> > insert it into the ring buffer.
>
> It does that? eek.
hm, did you expect something else from a printf based interface?
Ingo
next prev parent reply other threads:[~2009-02-27 8:21 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-24 5:17 [PATCH 1/3] add binary printf Frederic Weisbecker
2009-02-26 13:02 ` Ingo Molnar
2009-02-26 17:05 ` Frederic Weisbecker
2009-02-26 17:43 ` Ingo Molnar
2009-02-26 17:45 ` Frederic Weisbecker
2009-02-26 17:52 ` Ingo Molnar
2009-02-26 18:34 ` Frederic Weisbecker
2009-02-26 18:45 ` Ingo Molnar
2009-02-26 18:52 ` Frederic Weisbecker
2009-02-26 18:56 ` Ingo Molnar
2009-02-26 19:05 ` Frederic Weisbecker
2009-02-27 6:19 ` [PATCH][RFC] vsprintf: unify the format decoding layer for its 3 users Frederic Weisbecker
2009-02-27 6:46 ` Andrew Morton
2009-02-27 7:12 ` Frederic Weisbecker
2009-02-27 7:39 ` Andrew Morton
2009-02-27 8:32 ` Ingo Molnar
2009-02-27 8:45 ` Andrew Morton
2009-02-27 9:35 ` Ingo Molnar
2009-02-27 8:20 ` Ingo Molnar [this message]
2009-02-27 8:33 ` Andrew Morton
2009-02-27 15:03 ` Steven Rostedt
2009-02-28 0:30 ` Linus Torvalds
2009-02-28 0:39 ` Linus Torvalds
2009-02-28 8:11 ` Frederic Weisbecker
2009-02-28 9:13 ` Ingo Molnar
2009-02-28 19:45 ` [PATCH 1/5] add binary printf Frederic Weisbecker
2009-02-28 20:16 ` [PATCH 2/5] ftrace: infrastructure for supporting binary record Frederic Weisbecker
2009-03-02 16:27 ` Steven Rostedt
2009-03-02 17:39 ` Frédéric Weisbecker
2009-02-28 21:30 ` [PATCH 3/5] ftrace: add ftrace_bprintk() Frederic Weisbecker
2009-03-02 16:34 ` Steven Rostedt
2009-03-02 17:45 ` Frédéric Weisbecker
2009-03-02 17:53 ` Steven Rostedt
2009-03-02 18:06 ` Frédéric Weisbecker
2009-03-02 18:23 ` Steven Rostedt
2009-03-02 18:55 ` Frédéric Weisbecker
2009-02-28 22:16 ` [PATCH 4/5] tracing/core: drop the old ftrace_printk implementation in favour of ftrace_bprintk Frederic Weisbecker
2009-03-02 16:37 ` Steven Rostedt
2009-03-02 17:47 ` Frédéric Weisbecker
2009-02-28 23:11 ` [PATCH][RFC] vsprintf: unify the format decoding layer for its 3 users Frederic Weisbecker
2009-03-01 2:34 ` [PATCH 5/5 v3] " Frederic Weisbecker
2009-03-01 3:31 ` [PATCH 0/5] Binary ftrace_printk Frederic Weisbecker
2009-02-28 16:54 ` [PATCH][RFC] vsprintf: unify the format decoding layer for its 3 users Linus Torvalds
2009-02-28 17:18 ` Frederic Weisbecker
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