From: "David S. Miller" <davem@davemloft.net>
To: Andi Kleen <ak@suse.de>
Cc: ak@suse.de, netdev@oss.sgi.com, jheffner@psc.edu,
herbert@gondor.apana.org.au
Subject: Re: Current 2.6.x TSO state
Date: Fri, 1 Oct 2004 13:15:34 -0700 [thread overview]
Message-ID: <20041001131534.7bcb87ee.davem@davemloft.net> (raw)
In-Reply-To: <20041001200102.GB23046@wotan.suse.de>
On Fri, 1 Oct 2004 22:01:02 +0200
Andi Kleen <ak@suse.de> wrote:
> > As mentioned, the TCP receive buffer auto-tuning takes care
> > of all of this in 2.6.6 and later. It's just 2.6.5 doesn't
> > have John Heffner's auto-tuning code which is why your test
> > case is so stuck in the mud.
> >
> > Also, the stretch ACK's are quite normal. If the receiver can't
> > advertize a larger window, we won't spit out an ACK until
> > the ack timeout.
>
> Ok, but why is the TSO case still slower?
It isn't for me. With the auto-tuning code present at the
receiver, at least in my case, the TSO case runs more quickly
since my sender is PCI bandwidth limited since the tg3 sits
on a 32mhz/33bit PCI bus.
next prev parent reply other threads:[~2004-10-01 20:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-01 4:32 Current 2.6.x TSO state David S. Miller
2004-10-01 10:11 ` Andi Kleen
2004-10-01 19:47 ` David S. Miller
2004-10-01 19:51 ` Andi Kleen
2004-10-01 19:56 ` David S. Miller
2004-10-01 20:01 ` Andi Kleen
2004-10-01 20:15 ` David S. Miller [this message]
2004-10-01 20:33 ` John Heffner
2004-10-01 23:19 ` Andi Kleen
2004-10-02 0:04 ` David S. Miller
2004-10-01 13:06 ` Herbert Xu
2004-10-03 21:50 ` David S. Miller
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=20041001131534.7bcb87ee.davem@davemloft.net \
--to=davem@davemloft.net \
--cc=ak@suse.de \
--cc=herbert@gondor.apana.org.au \
--cc=jheffner@psc.edu \
--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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.