Re: SO_SNDBUF size is small on win32? - Mailing list pgsql-hackers

On Wed, Jun 28, 2006 at 12:23:13AM +0900, Yoshiyuki Asaba wrote:
> Hi,
>
> I see a performance issue on win32. This problem is causes by the
> following URL.
>
> http://support.microsoft.com/kb/823764/EN-US/
>
> On win32, default SO_SNDBUF value is 8192 bytes. And libpq's buffer is
> 8192 too.

Ok, so there's a difficiency in Windows TCP code. Do you have any
benchmarks to show this actually makes a difference. According to the
URL you give, the problem occurs if the libpq buffer is *bigger* than
the socket buffer, which it isn't...

Have a nice day,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.