Date: Wed, 04 Jan 2006 14:01:54 -0500 From: Francisco Reyes <lists@stringsutils.com> To: Oliver Brandmueller <ob@e-Gitt.NET> Cc: freebsd-isp@freebsd.org Subject: Re: FreeBSD +NFS + mail services Message-ID: <cone.1136401314.697200.65830.1000@zoraida.natserv.net> References: <cone.1136336702.793300.48688.1000@zoraida.natserv.net> <20060104065926.GA99739@e-Gitt.NET>
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Oliver Brandmueller writes: > Look at the sysctl vfs.nfs -> > vfs.nfs.iodmin: 4 > vfs.nfs.iodmax: 20 Great thanks. > In FreeBSD 6 you'll also find: > > vfs.nfs.iodmaxidle: 120 > > Should be pretty self explanatory. Tried to search for the meaning of that parameter. Could not find much info. Care to share some light on it? > benchmarks in your test area or before going to production. And while > being in prod you could take the chance to make performance monitoring > on all the machines and carefully change different variables How do you monitor performance on nfs.. other than nfsstat? would be usefull if vmstat included nfs mounts.. > I just migrated our NFS server(s) from 5.4 to 6.0 - our clients are > mainly still 5-STABLE, only few 6-STABLE clients. I saw a few NFS > locking problems (lockd starting to spin) with the server while it was > still RELENG_5, especially after stating with RELENG_6 clients. This was > clearly load dependant (started usually on busy days when the backup was > running into daytime). I haven't seen this yet with RELENG_6 servers, > but the migration was just one week ago and the backup scheme had been > changed also to avoid the problem, so I'm not completely sure here. So, basically on the little time you have had 6 your impression is that 6's NFS server code performs better?
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