Slow writes continued
davecb at Canada.Sun.COM
Fri Jun 5 12:11:52 GMT 1998
Jonathan Peterson <jon at amxstudios.com> wrote
> I posted a while back about getting very slow writes. People suggested
> modifying (increasing) SO_SNDBUF and SO_RCVBUF and this actually helps
> enormously. However, there is obviously something still not right.
> are still about 1/2 the speed of reads. This only seems to affect Win95
> clients (NT machines are fine).
> P.S. my RCVBUF and SNDBUF are now set to 10240 bytes.
If it's specific to '95, then you might have a mismatch between
the improvements you put into the server and the corresponding
tuning parameters on the client.
Back in windows 3.x, `RWIN' (receive window) was somewhat
oversensitive: setting it too small caused a sudden drop-off in
performance, too large ate low-memory buffers. Ditto write.
Could Some Kind Person say what the win95 and NT registry
items and their values are? I could then prognosticate
about what should happen in a mismatch (:-))
--dave (the Unix bigot) c-b
David Collier-Brown, | Always do right. This will gratify some people
185 Ellerslie Ave., | and astonish the rest. -- Mark Twain
Willowdale, Ontario | davecb at hobbes.ss.org, canada.sun.com
M2N 1Y3. 416-223-8968 | http://java.science.yorku.ca/~davecb
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