Date: Tue, 23 Jun 2015 10:39:23 +0000 From: =?utf-8?B?S2FybGkgU2rDtmJlcmc=?= <karli.sjoberg@slu.se> To: Quartz <quartz@sneakertech.com> Cc: "kpneal@pobox.com" <kpneal@pobox.com>, FreeBSD FS <freebsd-fs@freebsd.org> Subject: Re: ZFS raid write performance? Message-ID: <ad25d51b-ff7d-4b62-94b6-b873990e155b@email.android.com>
next in thread | raw e-mail | index | archive | help
Den 23 jun 2015 12:06 em skrev Quartz <quartz@sneakertech.com>: > > > I'd go with something similar to how the machine will be used in production. > > Hrmm, I was hoping for a quickie synthetic test just to gauge if the > write speed was anywhere near as low as the network. benchmarks/bonnie++ Good synthetic testing tool for filesystem performance. /K > > > Also, ZFS has the ability to detect sequences of zeros and optimize the > > writing of them. > > Yeah, I had a vague memory of something like that, which is why I asked. > > >Make sure the amount copied to the machine is, oh, say, at least > > twice (or maybe thrice?) the amount of RAM in the server just to be sure > > you've defeated any caching. > > That's... not going to be easy. I don't have that much data broken into > files of that size kicking around yet. It won't necessarily be a > "production" test either, given that most clients will be transferring > only a few gigs over at a time. > > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?ad25d51b-ff7d-4b62-94b6-b873990e155b>