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04-18-2008, 12:55 AM
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 Re: [HACKERS] SO_SNDBUF size is small on win32? 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. > > pqcomm.c:117 > #define PQ_BUFFER_SIZE 8192 > > send() may take as long as 200ms. So, I think we should increase > SO_SNDBUF to more than 8192. I attache the patch. Based on this patch and comments, I have applied a patch that sets the buffer to 32k, and adds the URL in a comment. I think there was concensus that there is no need for this to be used on the client side, only the server. Thanks. -- Bruce Momjian bruce@momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend      |
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