From: Steven Rostedt <rostedt@goodmis.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Peter Zijlstra <peterz@infradead.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Pierre Tardy <tardyp@gmail.com>, Ingo Molnar <mingo@elte.hu>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Tom Zanussi <tzanussi@gmail.com>,
Paul Mackerras <paulus@samba.org>,
linux-kernel@vger.kernel.org, arjan@infradead.org,
ziga.mahkovec@gmail.com, davem <davem@davemloft.net>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Christoph Lameter <cl@linux-foundation.org>,
Tejun Heo <tj@kernel.org>, Jens Axboe <jens.axboe@oracle.com>
Subject: Re: Unexpected splice "always copy" behavior observed
Date: Wed, 19 May 2010 11:12:36 -0400 [thread overview]
Message-ID: <1274281956.26328.776.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <alpine.LFD.2.00.1005190758070.23538@i5.linux-foundation.org>
On Wed, 2010-05-19 at 07:59 -0700, Linus Torvalds wrote:
>
> Btw, since you apparently have a real case - is the "splice to file"
> always just an append? IOW, if I'm not right in assuming that the only
> sane thing people would reasonable care about is "append to a file", then
> holler now.
My use case is just to move the data from the ring buffer into a file
(or network) as fast as possible. It creates a new file and all
additions are "append to a file".
I believe Mathieu does the same.
With me, you are correct.
-- Steve
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next prev parent reply other threads:[~2010-05-19 15:12 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-18 15:34 Mathieu Desnoyers
2010-05-18 15:51 ` Nick Piggin
2010-05-18 15:56 ` Christoph Lameter
2010-05-18 16:00 ` Nick Piggin
2010-05-18 16:13 ` Nick Piggin
2010-05-18 15:53 ` Steven Rostedt
2010-05-18 16:10 ` Steven Rostedt
2010-05-18 16:25 ` Linus Torvalds
2010-05-19 6:31 ` Nick Piggin
2010-05-19 14:39 ` Linus Torvalds
2010-05-19 14:56 ` Steven Rostedt
2010-05-19 14:59 ` Linus Torvalds
2010-05-19 15:12 ` Steven Rostedt [this message]
2010-05-19 15:51 ` Mathieu Desnoyers
2010-05-19 15:33 ` Miklos Szeredi
2010-05-19 15:45 ` Steven Rostedt
2010-05-19 15:55 ` Nick Piggin
2010-05-19 16:01 ` Mathieu Desnoyers
2010-05-19 16:36 ` Steven Rostedt
2010-05-19 15:57 ` Mathieu Desnoyers
2010-05-19 16:27 ` Nick Piggin
2010-05-19 19:14 ` Mathieu Desnoyers
2010-05-19 19:31 ` Linus Torvalds
2010-05-19 21:49 ` Mathieu Desnoyers
2010-05-20 0:04 ` Linus Torvalds
2010-05-20 1:56 ` Mathieu Desnoyers
2010-05-20 14:18 ` Linus Torvalds
2010-05-19 20:59 ` Rick Sherm
2010-05-19 15:17 ` Nick Piggin
2010-05-19 15:30 ` Linus Torvalds
2010-05-19 15:44 ` Nick Piggin
2010-05-19 15:28 ` Miklos Szeredi
2010-05-19 15:32 ` Linus Torvalds
2010-05-19 15:56 ` Miklos Szeredi
2010-05-19 16:01 ` Linus Torvalds
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