From: Rick Jones <rick.jones2@hp.com>
To: "Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>
Cc: Evgeniy Polyakov <zbr@ioremap.net>,
David Miller <davem@davemloft.net>,
Netdev <netdev@vger.kernel.org>,
efault@gmx.de, mingo@elte.hu, a.p.zijlstra@chello.nl,
Herbert Xu <herbert@gondor.apana.org.au>
Subject: Re: tbench wrt. loopback TSO
Date: Wed, 05 Nov 2008 13:06:45 -0800 [thread overview]
Message-ID: <49120AE5.302@hp.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0811052108250.9159@wrl-59.cs.helsinki.fi>
>>Ignoring the TSO case for a moment, if there is congestion and receiver
>>window available and a user makes a > MSS send that isn't an integral
>>multiple of the MSS, we don't delay the last subMSS segment do we?
>
>
> Without TSO, only Nagle could prevent sending that submss portion, so the
> answer depends on what the window in-flight consists of.
I always thought that Nagle was supposed to be implemented as if it was
on a user send() by user send() basis and not segment by segment, in
which case no send() > MSS would be delayed by Nagle.
rick jones
next prev parent reply other threads:[~2008-11-05 21:06 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-16 0:14 tbench wrt. loopback TSO David Miller
2008-10-17 3:49 ` non-TCP tbench (was Re: tbench wrt. loopback TSO) David Miller
2008-10-26 12:34 ` tbench wrt. loopback TSO Evgeniy Polyakov
2008-10-27 1:59 ` David Miller
2008-10-27 7:49 ` Ilpo Järvinen
2008-10-27 14:13 ` Evgeniy Polyakov
2008-10-27 15:19 ` Ilpo Järvinen
2008-10-27 17:03 ` Evgeniy Polyakov
2008-10-27 18:39 ` David Miller
2008-10-27 19:35 ` Evgeniy Polyakov
2008-10-27 19:37 ` David Miller
2008-11-05 11:42 ` David Miller
2008-11-05 11:49 ` Evgeniy Polyakov
2008-11-05 11:54 ` David Miller
2008-11-05 12:04 ` Ilpo Järvinen
2008-11-05 12:09 ` David Miller
2008-11-05 12:25 ` Ilpo Järvinen
2008-11-05 13:04 ` Evgeniy Polyakov
2008-11-05 13:33 ` Ilpo Järvinen
2008-11-05 18:48 ` Rick Jones
2008-11-05 19:46 ` Ilpo Järvinen
2008-11-05 21:06 ` Rick Jones [this message]
2008-10-27 22:17 ` Ilpo Järvinen
2008-10-31 8:14 ` David Miller
2008-10-31 9:16 ` Ilpo Järvinen
2008-10-31 9:47 ` David Miller
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