Date: Mon, 17 Aug 1998 10:07:04 -0500 (EST) From: Alfred Perlstein <bright@www.hotjobs.com> To: Didier Derny <didier@omnix.net> Cc: hackers@FreeBSD.ORG, support@yard.de Subject: Re: yard/freebsd (network problem) Message-ID: <Pine.BSF.3.96.980817100500.354B-100000@bright.fx.genx.net> In-Reply-To: <Pine.BSF.3.96.980817095105.15897F-100000@omnix.net>
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i don't have time to check this out myself, but you might have some luck
with setsockopt()
man setsockopt gives some interesting options:
SO_SNDLOWAT set minimum count for output
SO_RCVLOWAT set minimum count for input
SO_SNDTIMEO set timeout value for output
SO_RCVTIMEO set timeout value for input
...
SO_SNDLOWAT is an option to set the minimum count for output
operations.
Most output operations process all of the data supplied by the call,
de-
livering data to the protocol for transmission and blocking as
necessary
for flow control. Nonblocking output operations will process as much
da-
ta as permitted subject to flow control without blocking, but will
pro-
cess no data if flow control does not allow the smaller of the low
water
mark value or the entire request to be processed. A select(2)
operation
testing the ability to write to a socket will return true only if the
low
water mark amount could be processed. The default value for
SO_SNDLOWAT
is set to a convenient size for network efficiency, often 1024.
maybe you can try this?
good luck,
Alfred Perlstein - Programmer, HotJobs Inc. - www.hotjobs.com
-- There are operating systems, and then there's BSD.
-- http://www.freebsd.org/
On Mon, 17 Aug 1998, Didier Derny wrote:
> Hi,
>
> I still have the yard/freebsd problem
> every program I written with yard/cli worked
> fine on linux but failed on FreeBSD
>
> On FreeBSD, there is a kind of 1 second delay between
> the sql statments.
>
> the problem is solved but setting net.inet.tcp.ack_delayed=1
>
> Yard is using normal read/write to talk to the server.
>
> Is there any flag to set with setsockopt/fcntl... to
> get a fast delivry of small packets ?
>
> we tried TCP_NODELAY last week but without any result.
>
> Thanks for your help,
>
> --
> Didier Derny
> didier@omnix.net
>
>
>
>
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