Re: NFS and SAMBA on RELENG_5 vs RELENG_4
From: Eric Anderson (anderson_at_centtech.com)
Date: 01/23/05
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Date: Sun, 23 Jan 2005 15:28:49 -0600 To: Robert Watson <rwatson@freebsd.org>
Robert Watson wrote:
> On Thu, 20 Jan 2005, Eric Anderson wrote:
>
>
>>I can tell you this - you must increase the number of nfsd threads to a
>>high number, if you plan on really hammering the machine with nfs and
>>lots of clients. I recompiled the nfsd binary with it tweaked to allow
>>256 threads, and that still isn't quite enough. You need something on
>>the order of: 1 per active machine using nfs * 1.10. The hard part is
>>finding out how many active machines you have. I usually start with
>>about 20% of my total machines mounted to the server, and then watch the
>>nfsd threads cpu time. If the lowest thread is using more than about
>>3-4% of the time of the 10-15th top nfsd process, then you need to bump
>>up the number. That may be confusing..
>
>
> Hmm. So it sounds like it would make sense for us to do that in the src
> tree. Is it sufficient to simply redefine MAXNFSDCNT from 20 to 256, or
> do other things also need tweaking?
I think it would make sense. Yes, that is the only knob to turn..
Eric
-- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology I have seen the future and it is just like the present, only longer. ------------------------------------------------------------------------ _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org"
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