Slow write performance with Win 98 and Samba (fwd)
Christopher R. Hertel
crh at nts.umn.edu
Thu Jun 21 17:37:49 GMT 2001
> Kenichi Okuyama wrote:
> > Before I start connecting windows machine, I run
> > # sysctl -w net.inet.tcp.delayed_ack=0
> George Fytikas of Sun Americas' Customer Engineering wrote:
> | tcp_deferred_ack_interval was at the centre of the investigation,
> | but it is "The time to wait before sending delayed ACK" in ms.
> | tcp_deferred_acks_max puts a cap on delayed ack. The default
> | is 8. Setting it to 1 will make our tcp conform to the "ack
> | every other packet" policy suggested by rfc1122. Setting it
> | to 0 will disable delayed ack totally.
> This is worth trying on a Solaris Samba server to see
> if setting it to 1 will make the Windows TCP
> stack perform...
Dave, can you do this for us? It would be great if you could do the test
both ways and see if the behavior changes. I don't have access to an OS
that offers this particular sysctl variable.
Christopher R. Hertel -)----- University of Minnesota
crh at nts.umn.edu Networking and Telecommunications Services
Ideals are like stars; you will not succeed in touching them
with your hands...you choose them as your guides, and following
them you will reach your destiny. --Carl Schultz
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