From: Tom Lane <tgl@sss.pgh.pa.us>
Subject: Re: [HACKERS] SO_SNDBUF size is small on win32?
Date: Tue, 27 Jun 2006 11:30:56 -0400

> Yoshiyuki Asaba <y-asaba@sraoss.co.jp> writes:
> > send() may take as long as 200ms. So, I think we should increase
> > SO_SNDBUF to more than 8192. I attache the patch.
>
> Why would that help? We won't be sending more than 8K at a time.

MSDN is,

Method2: Make the Socket Send Buffer Size Larger Than the Program
Send Buffer Size
....
Modify the send call or the WSASend call to specify a buffer size
at least 1 byte smaller than the SO_SNDBUF value.

--
Yoshiyuki Asaba
y-asaba@sraoss.co.jp

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