¿Wizard Merlin?
>________________________________ > De: Merlin Moncure <mmonc...@gmail.com> >Para: David Boreham <david_l...@boreham.org> >CC: pgsql-performance@postgresql.org >Enviado: Miércoles 16 de Mayo de 2012 13:53 >Asunto: Re: [PERFORM] SSD selection > >On Wed, May 16, 2012 at 12:45 PM, David Boreham <david_l...@boreham.org> wrote: >> On 5/16/2012 11:01 AM, Merlin Moncure wrote: >>> >>> Although your assertion 100% supported by intel's marketing numbers, >>> there are some contradicting numbers out there that show the drives >>> offering pretty similar performance. For example, look here: >>> http://www.anandtech.com/show/4902/intel-ssd-710-200gb-review/4 and >>> you can see that 4k aligned writes are giving quite similar results >>> (14k iops) even though the 710 is only rated for 2700 iops while the >>> 320 is rated for 21000 IOPS. Other benchmarks also show similar >>> results. >> >> Actually I said the same thing you're saying : that the two series will >> deliver similar performance. >> >> The spec numbers however would be for worst case conditions (in the case of >> the 710). >> I'm not convinced that those tests were exercising the worst case part of >> the envelope. > >Yeah -- you might be right -- their numbers are based on iometer which >looks like it runs lower than other tests (see here: >http://www.storagereview.com/intel_ssd_710_series_review_200gb). I >still find it interesting the 320 is spec'd so much higher though. I >guess I spoke to soon -- it looks it has to do with the life extending >attributes of the drive. Benchmarks are all over the place though. > >merlin > >-- >Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) >To make changes to your subscription: >http://www.postgresql.org/mailpref/pgsql-performance > > >
