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Date: Wed, 10 Jan 2007 17:00:10 -0800
From: "Jeff Mohler" <speedtoys.racing@gmail.com>
To: Freminlins <freminlins@gmail.com>
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Cc: Chris <chrcoluk@gmail.com>, Jerry McAllister <jerrymc@msu.edu>,
	Nikolas Britton <nikolas.britton@gmail.com>,
	FreeBSD Questions <freebsd-questions@freebsd.org>
Subject: Re: is THIS why the 6.2 release seems stalled ?
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> > 1 - To fix stuff that works in linux but goes to crap in freebsd, one
> > such example is NFS.
>
>
> I don't actually have a problem with FreeBSD and NFS. This is using about
> 20+ clients and 2 NetApp filers. What problem are you having, rather than
> just "goes to crap"?
---
If for example you do a make buildworld or a kernel build (anything
that uses a lot of ../.. to walk the dir structure) you will find that
it is way slower than the same builds on local disk.

The basic reason is that a ../.. walk invalidates cached metadata, and
you end up with a pipe full of getattr's all of the time.  Freebsd-fs
has discussed this a bit, but no fixing is coming soon.  We use linux
to compile builds, we'd like to use Freebsd, but linux on Filers via
NFS is about 3x faster than the same builds on Fbsd to the same filer.
  ../.. baby.