From: Ion Badulescu <ionut@moisil.cs.columbia.edu>
To: Andrew Morton <andrewm@uow.edu.au>
Cc: lkml <linux-kernel@vger.kernel.org>,
"netdev@oss.sgi.com" <netdev@oss.sgi.com>,
Aaron Lehmann <aaronl@vitelus.com>
Subject: Re: sendfile+zerocopy: fairly sexy (nothing to do with ECN)
Date: Sat, 27 Jan 2001 02:09:41 -0800 [thread overview]
Message-ID: <200101271009.f0RA9fb04363@moisil.dev.hydraweb.com> (raw)
In-Reply-To: <3A728475.34CF841@uow.edu.au>
On Sat, 27 Jan 2001 19:19:01 +1100, Andrew Morton <andrewm@uow.edu.au> wrote:
> The figures I quoted for the no-hw-checksum case were still
> using scatter/gather. That can be turned off as well and
> it makes it a tiny bit quicker.
Hmm. Are you sure the differences are not just noise? Unless you
modified the zerocopy patch yourself, it won't use SG without
checksums...
In fact it would be interesting to revert that policy and
see how much SG alone helps. Probably not much, since the
CPU checksumming is close to onecopy.
Ion
--
It is better to keep your mouth shut and be thought a fool,
than to open it and remove all doubt.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2001-01-27 10:10 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-27 5:45 sendfile+zerocopy: fairly sexy (nothing to do with ECN) Andrew Morton
2001-01-27 6:20 ` Aaron Lehmann
2001-01-27 8:19 ` Andrew Morton
2001-01-27 10:09 ` Ion Badulescu [this message]
2001-01-27 10:45 ` Andrew Morton
2001-01-30 6:00 ` David S. Miller
2001-01-30 12:44 ` Andrew Morton
2001-01-30 12:52 ` David S. Miller
2001-01-30 14:58 ` Andrew Morton
2001-01-30 17:49 ` Chris Wedgwood
2001-01-30 22:17 ` David S. Miller
2001-01-31 0:31 ` Chris Wedgwood
2001-01-31 0:45 ` David S. Miller
2001-01-30 22:28 ` David S. Miller
2001-01-30 23:34 ` Andrew Morton
2001-02-02 10:12 ` Andrew Morton
2001-02-02 12:14 ` Trond Myklebust
2001-02-02 17:51 ` David Lang
2001-02-02 22:46 ` David S. Miller
2001-02-02 22:57 ` David Lang
2001-02-02 23:09 ` David S. Miller
2001-02-02 23:13 ` David Lang
2001-02-02 23:28 ` Jeff Barrow
2001-02-02 23:31 ` David S. Miller
2001-02-03 2:27 ` James Sutherland
2001-01-27 10:05 ` Ion Badulescu
2001-01-27 10:39 ` Andrew Morton
2001-01-27 12:49 ` jamal
2001-01-30 1:06 ` Ion Badulescu
2001-01-30 2:48 ` jamal
2001-01-30 3:26 ` Ion Badulescu
2001-01-31 0:53 ` Still not sexy! (Re: " jamal
2001-01-31 0:59 ` Ingo Molnar
2001-01-31 1:04 ` jamal
2001-01-31 1:14 ` Ingo Molnar
2001-01-31 1:39 ` jamal
2001-01-31 11:21 ` Malcolm Beattie
2001-01-31 11:24 ` Ingo Molnar
2001-01-31 1:10 ` Still not sexy! (Re: sendfile+zerocopy: fairly sexy (nothing to dowith ECN) Rick Jones
2001-01-31 1:45 ` jamal
2001-01-31 2:25 ` Still not sexy! (Re: sendfile+zerocopy: fairly sexy (nothing todowith ECN) Rick Jones
2001-02-04 19:48 ` jamal
2001-02-05 5:13 ` David S. Miller
2001-02-05 18:51 ` Rick Jones
2001-01-27 12:43 ` sendfile+zerocopy: fairly sexy (nothing to do with ECN) jamal
2001-01-27 13:29 ` Andrew Morton
2001-01-27 14:15 ` jamal
2001-01-28 16:05 ` Andrew Morton
2001-01-29 18:50 ` Rick Jones
[not found] ` <200101271854.VAA02845@ms2.inr.ac.ru>
2001-01-28 5:34 ` Andrew Morton
2001-01-28 13:37 ` Felix von Leitner
2001-01-28 14:11 ` Dan Hollis
2001-01-28 14:27 ` Andi Kleen
2001-01-29 21:50 ` Pavel Machek
2001-01-28 19:43 ` Gregory Maxwell
2001-01-28 19:48 ` Choosing Linux NICs (was: Re: sendfile+zerocopy: fairly sexy (nothing to do with ECN)) Felix von Leitner
-- strict thread matches above, loose matches on Subject: below --
2001-01-29 16:16 sendfile+zerocopy: fairly sexy (nothing to do with ECN) Jonathan Earle
2001-01-29 16:34 ` Antonin Kral
2001-01-31 1:49 Bernd Eckenfels
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200101271009.f0RA9fb04363@moisil.dev.hydraweb.com \
--to=ionut@moisil.cs.columbia.edu \
--cc=aaronl@vitelus.com \
--cc=andrewm@uow.edu.au \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@oss.sgi.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox