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From: Ingo Molnar <mingo@elte.hu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Lai Jiangshan <laijs@cn.fujitsu.com>,
	Li Zefan <lizf@cn.fujitsu.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
	Tom Zanussi <tzanussi@gmail.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 00/14] [GIT PULL][v2.6.39] tracing/filter: More robust filtering
Date: Wed, 16 Feb 2011 10:10:07 +0100	[thread overview]
Message-ID: <20110216091007.GC18842@elte.hu> (raw)
In-Reply-To: <1297796375.23343.118.camel@gandalf.stny.rr.com>


* Steven Rostedt <rostedt@goodmis.org> wrote:

> Let me apologize again. [...]

No need to apologize - you raised valid questions that have come up in the past and 
i am pretty good at ignoring early-in-the-morning aspect of mails ;-)

> > Anyway, there's certainly encouraging responses in this thread so i'm hopeful 
> > that it's getting fixed and improved and we can push the generic bits upstream.
> 
> Yes, I'm hopeful too ;)

Great! :-)

If someone wants to dust off the 'trace' utility patches that are still in 
tip:tmp.perf/trace that would be fantastic. Thomas and Peter prototyped an 
ftrace-esque buffering model there, to have all events associated with a
single fd (and hence a single [per cpu] buffer).

Warning, they conflict left and right with the current code:

 kernel/sched.c
 kernel/trace/trace.c
 tools/perf/Makefile
 tools/perf/builtin-record.c
 tools/perf/util/event.c
 tools/perf/util/header.c
 tools/perf/util/parse-events.c
 tools/perf/util/session.c
 tools/perf/util/session.h

So it's quite a bit of work - and of course it was all very unfinished, not even 
reaching prototype stage really.

Thanks,

	Ingo

  reply	other threads:[~2011-02-16  9:10 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-08  1:56 [PATCH 00/14] [GIT PULL][v2.6.39] tracing/filter: More robust filtering Steven Rostedt
2011-02-08  1:56 ` [PATCH 01/14] tracing/filter: Have no filter return a match Steven Rostedt
2011-02-08  1:56 ` [PATCH 02/14] tracing/filter: Move OR and AND logic out of fn() method Steven Rostedt
2011-02-08  1:56 ` [PATCH 03/14] tracing/filter: Dynamically allocate preds Steven Rostedt
2011-02-08  1:56 ` [PATCH 04/14] tracing/filter: Call synchronize_sched() just once for system filters Steven Rostedt
2011-02-08  1:56 ` [PATCH 05/14] tracing/filter: Allocate the preds in an array Steven Rostedt
2011-02-08  1:56 ` [PATCH 06/14] tracing/filter: Free pred array on disabling of filter Steven Rostedt
2011-02-08  1:56 ` [PATCH 07/14] tracing/filter: Use a tree instead of stack for filter_match_preds() Steven Rostedt
2011-02-08  1:56 ` [PATCH 08/14] tracing/filter: Optimize short ciruit check Steven Rostedt
2011-02-08  1:56 ` [PATCH 09/14] tracing/filter: Check the created pred tree Steven Rostedt
2011-02-08  1:56 ` [PATCH 10/14] tracing/filter: Optimize filter by folding the tree Steven Rostedt
2011-02-08  1:56 ` [PATCH 11/14] tracing/filter: Move MAX_FILTER_PRED to local tracing directory Steven Rostedt
2011-02-08  1:56 ` [PATCH 12/14] tracing/filter: Increase the max preds to 2^14 Steven Rostedt
2011-02-08  1:56 ` [PATCH 13/14] tracing/filter: Swap entire filter of events Steven Rostedt
2011-02-08  1:56 ` [PATCH 14/14] tracing/filter: Remove synchronize_sched() from __alloc_preds() Steven Rostedt
2011-02-15  4:44 ` [PATCH 00/14] [GIT PULL][v2.6.39] tracing/filter: More robust filtering Ingo Molnar
2011-02-15 13:33   ` Steven Rostedt
2011-02-15 16:29     ` Steven Rostedt
2011-02-15 16:53       ` Frederic Weisbecker
2011-02-15 18:35         ` Arnaldo Carvalho de Melo
2011-02-16 13:34           ` Masami Hiramatsu
2011-02-16 14:52             ` Arnaldo Carvalho de Melo
2011-02-15 18:42     ` Ingo Molnar
2011-02-15 18:59       ` Steven Rostedt
2011-02-16  9:10         ` Ingo Molnar [this message]
2011-02-15 13:44   ` Arnaldo Carvalho de Melo

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