From: "Manfred Spraul" <manfred@colorfullife.com>
To: <kuznet@ms2.inr.ac.ru>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: Feedback for fastselect and one-copy-pipe
Date: Mon, 12 Mar 2001 21:28:38 +0100 [thread overview]
Message-ID: <001b01c0ab33$07ff5670$5517fea9@local> (raw)
In-Reply-To: <200103122008.XAA11117@ms2.inr.ac.ru>
From: <kuznet@ms2.inr.ac.ru>
>
> > freebsd
>
> Very funny, the idea is borrowed from there.
>
> As you could understand your patch kills it. PAGE_SIZE is one of the
most
> frequently used transfer unit.
>
freebsd-4.0 doesn't use direct transfers for PAGE_SIZE'd pipe write()s:
it uses MINDIRECT=8192. (and PIPE_BUF is 512, so 4096 was possible for
them)
--
Manfred
next prev parent reply other threads:[~2001-03-12 20:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-12 14:15 Feedback for fastselect and one-copy-pipe Ingo Oeser
2001-03-12 16:20 ` Mike Galbraith
2001-03-12 16:58 ` Ingo Oeser
2001-03-12 17:29 ` Mike Galbraith
2001-03-12 16:42 ` Manfred Spraul
2001-03-12 18:12 ` kuznet
2001-03-12 18:42 ` Manfred Spraul
2001-03-12 19:40 ` kuznet
2001-03-12 20:05 ` Manfred Spraul
2001-03-12 20:08 ` kuznet
2001-03-12 20:28 ` Manfred Spraul [this message]
2001-03-12 20:31 ` kuznet
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