Date: Tue, 23 Feb 2010 11:54:32 -0800 From: Artem Belevich <fbsdlist@src.cx> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-fs@freebsd.org Subject: Re: Some ZFS+NFS benchmarks (OpenSolaris) Message-ID: <ed91d4a81002231154j25b92150tdc3d882bd8814139@mail.gmail.com> In-Reply-To: <hm19h4$8ah$1@dough.gmane.org> References: <hm19h4$8ah$1@dough.gmane.org>
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OCZ Vertex Turbo SSD that they used may not be the best choice for Zil. It's not too bad, but according to benchmarks, it does lag behind Intel's X25-M in IOPS: http://www.tomshardware.com/reviews/ssd-x25-m-vertex,2399-13.html If we believe the benchmarks, OCZ's SSD could provide ~900 IOPS during fileserver benchmark. I assume that it would be in the ballpark of the iozone tests in the paper. The number seems to correlate fairly well with the paper's probes/sec graps on pages 12 and 13. My bet would be that if they used Intel's SSDs (X25-M or, even better, X25-E), they would probably see noticeable write performance bump. --Artem On Tue, Feb 23, 2010 at 11:15 AM, Ivan Voras <ivoras@freebsd.org> wrote: > http://staff.science.uva.nl/~delaat/sne-2009-2010/p02/report.pdf > > It's curious how ZIL on SSD doesn't help them with NFS when they increase > the load. > > _______________________________________________ > 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" >
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