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	Wed, 11 May 2005 01:11:57 PDT
Date: Wed, 11 May 2005 01:11:57 -0700 (PDT)
From: Rob <spamrefuse@yahoo.com>
To: Subhro <subhro.kar@gmail.com>
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cc: FreeBSD Stable <freebsd-stable@freebsd.org>
Subject: Re: xl(4) & polling
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--- Subhro <subhro.kar@gmail.com> wrote:

> On 5/11/2005 13:13, Rob wrote:
> 
> >--- Subhro <subhro.kar@gmail.com> wrote:
> >
> >  
> >
> >>On 5/11/2005 8:04, Rob wrote:
> >>
> >>    
> >>
> >>>All computers are running 5-Stable, as of May 10.
> >>>All, but PC1 with fxp, use polling, with:
> >>>  options DEVICE_POLLING
> >>>  options HZ=1000
> >>> 
> >>>
> >>>      
> >>>
> >>1000 IMHO seems a bit too heavy. Try something
> >>lower.
> >
> > Same problem. Ssh-tunnel connection is also
> > disrupted with HZ=100. May I conclude that the
> > HZ value is not the culprit? Or should I try
> > once again with HZ=10?
> >  
> >
> 100 should be fine. 10 would be a bit too much
> overkill.
> 
> >kern.ipc.nmbclusters is 4928 for this PC.
> >Is that good or bad?
> >  
> >
> What is the purpose of the box? Give a description
> of the network traffic.

This is a lab in the Chemistry department; the box
in question is a dual-homed gateway to eight other
PCs in the lab. The box has a tight firewall, and
runs an apache server and an SSH server.
On the private network, the box also runs as a DHCP
server, Samba server and NTP server.
OS = 5-Stable.

The other PCs in the lab are two FreeBSD PCs and
various flavours of Windows.

> Did you use any strange CFLAGS like -O3 or -f*
> compile time options when you built the system?

No. My /etc/make.conf has:

CFLAGS= -O -pipe
NOPROFILE=true
NO_PF=true

>> kern.polling.enable: 0
> 
> Force this to be 1. Damn I should have noted it
> earlier

I took this printout after I changed the value to 0.
Of course it is 1 when I test the polling, but when
I noticed that the ssh-tunnel connection problem
persisted, I changed it to 0; so that my ssh-tunnel
connection is not randomly closed :).

Thanks for your elaborate help!

Rob.


		
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