Date: Wed, 11 May 2005 12:08:36 +0530 From: Subhro <subhro.kar@gmail.com> To: Rob <spamrefuse@yahoo.com> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: xl(4) & polling Message-ID: <4281A86C.5010102@gmail.com> In-Reply-To: <20050511054441.69092.qmail@web54008.mail.yahoo.com> References: <20050511054441.69092.qmail@web54008.mail.yahoo.com>
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On 5/11/2005 11:14, Rob wrote: >>When I have to put up a new FreeBSD box, I start >>from 100 and start beefing up the number until I >>find a good balance. >> >> > >Hmmm, how do you "find a good balance" ? >Network access speed vs. lost connections.....? > > > Yes. The access times during the top load period and the average load period helps me to decide the "ideal value". Also its worthwhile to adjust the values: sysctl -a | grep nmbcluster They determine the number of buffers available for storing network connections. > >Interestingly: HZ=1000 is apparently a problem with >the xl devices (3Com 3c905B-TX), but not with the >rl devices (RealTek 8139). >What could cause that difference? Could a difference >in buffer size on the LAN card cause this? > > Highly possible. But it also depends on the sysctl values I mentioned above. Regards S.
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