From: David Miller <davem@davemloft.net>
To: alexandre.sidorenko@hp.com
Cc: netdev@vger.kernel.org
Subject: Re: SWS for rcvbuf < MTU
Date: Fri, 02 Mar 2007 11:25:42 -0800 (PST) [thread overview]
Message-ID: <20070302.112542.18305896.davem@davemloft.net> (raw)
In-Reply-To: <200703021128.29208.alexandre.sidorenko@hp.com>
From: Alex Sidorenko <alexandre.sidorenko@hp.com>
Date: Fri, 2 Mar 2007 11:28:28 -0500
> Customer has confirmed that this resolves the problem and decreases
> CPU usage by his custom application - even when there is no SWS.
There is rarely ever a reason to set explicit socket receive
buffer sizes, since the kernel dynamically sizes them based
upon how the connection is used.
Why do they set it so low?
It is just as easy to fix their performance bug by simply removing
SO_RCVBUF setting in the application.
next prev parent reply other threads:[~2007-03-02 19:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-02 16:28 SWS for rcvbuf < MTU Alex Sidorenko
2007-03-02 18:54 ` John Heffner
2007-03-02 20:29 ` Alex Sidorenko
2007-03-02 19:25 ` David Miller [this message]
2007-03-02 20:21 ` Alex Sidorenko
2007-03-02 20:33 ` David Miller
2007-03-02 21:16 ` John Heffner
2007-03-02 21:38 ` David Miller
2007-03-03 23:40 ` John Heffner
2007-03-05 16:52 ` Alex Sidorenko
2007-03-13 19:01 ` John Heffner
2007-03-14 16:18 ` Alex Sidorenko
2007-04-02 20:01 ` Alex Sidorenko
2007-04-02 20:21 ` David Miller
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