From: "Stephen C. Tweedie" <sct@redhat.com>
To: John Gardiner Myers <jgmyers@netscape.com>
Cc: linux-aio <linux-aio@kvack.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] adding aio_readv/writev
Date: Tue, 24 Sep 2002 14:52:25 +0100 [thread overview]
Message-ID: <20020924145225.J3160@redhat.com> (raw)
In-Reply-To: <3D9066AD.6030904@netscape.com>; from jgmyers@netscape.com on Tue, Sep 24, 2002 at 06:20:45AM -0700
Hi,
On Tue, Sep 24, 2002 at 06:20:45AM -0700, John Gardiner Myers wrote:
> Benjamin LaHaise wrote:
>
> >Only db2 uses vectored io heavily. Oracle does not, and none of the open
> >source databases do. Vectored io is pretty useless for most people.
> >
> >
> writev is extremely important for networking as it avoids small packets.
No, all you can infer from that is that "some method for avoiding
small packets is important for networking." TCP_CORK already does
that in Linux, for tcp at least, without requiring writev. (Of
course, normal nonblocking writev is still there if you want it.)
--Stephen
next prev parent reply other threads:[~2002-09-24 13:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-20 20:39 [RFC] adding aio_readv/writev Shailabh Nagar
[not found] ` <1032555981.2082.10.camel@dell_ss3.pdx.osdl.net>
2002-09-23 14:30 ` Shailabh Nagar
2002-09-23 18:53 ` Clement T. Cole
[not found] ` <20020923114104.A11680@redhat.com>
2002-09-24 13:20 ` John Gardiner Myers
2002-09-24 13:52 ` Stephen C. Tweedie [this message]
2002-09-24 14:13 ` John Gardiner Myers
-- strict thread matches above, loose matches on Subject: below --
2002-09-23 17:59 Chen, Kenneth W
[not found] <200209231851.g8NIpea12782@igw2.watson.ibm.com>
2002-09-23 19:52 ` Shailabh Nagar
2002-09-23 20:39 ` Clement T. Cole
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