Date: Fri, 13 Nov 2009 01:56:46 +0100 From: Ivan Voras <ivoras@freebsd.org> To: Scott Ullrich <sullrich@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Help ZFS FreeBSD 8.0 RC2 Write performance issue Message-ID: <9bbcef730911121656x7615efcbu7dfb1ef060c2797c@mail.gmail.com> In-Reply-To: <d5992baf0911121638x4cfec4edpb597faa47b1da54b@mail.gmail.com> References: <11167f520911111050j36dd94far667c81e6f5c18e69@mail.gmail.com> <9bbcef730911111352t12188bdajbca71bcf35a5beb5@mail.gmail.com> <Pine.GSO.4.63.0911121147310.9126@muncher.cs.uoguelph.ca> <11167f520911121044l74744c30u5a4d9ca008ab863c@mail.gmail.com> <d5992baf0911121048o76c1543el2b4d9de84ffb107@mail.gmail.com> <11167f520911121101o403751ddmb544dfaf1c61bf1e@mail.gmail.com> <ed91d4a80911121219sa0f3fa3s934791725028a966@mail.gmail.com> <d5992baf0911121314k7f535f2cra2d3e8367774d8ca@mail.gmail.com> <9bbcef730911121328t342b2268oceba3712b52511d4@mail.gmail.com> <d5992baf0911121638x4cfec4edpb597faa47b1da54b@mail.gmail.com>
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2009/11/13 Scott Ullrich <sullrich@gmail.com>: > On Thu, Nov 12, 2009 at 4:28 PM, Ivan Voras <ivoras@freebsd.org> wrote: >> So in short, you are saying the to get "normal" performance out of >> ZFS+NFS, the best way is to invest in an Areca and 2 SSDs :)) > > Yep, that seems to be the magic recipe for NFS related serving. I know it's a bit late now that you've settled on your equipment but did you try discovering why you get performance so low you need SSDs to cope? I think I've read somewhere that disabling ZIL should help NFS performance - did you try it? Did you test your workload directly on the ZFS volume (without NFS) or with another network file system like Samba?home | help
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