On 11/17/09 10:58 PM, "da...@lang.hm" <da...@lang.hm> wrote: > > keep in mind that bonnie++ isn't always going to reflect your real > performance. > > I have run tests on some workloads that were definantly I/O limited where > bonnie++ results that differed by a factor of 10x made no measurable > difference in the application performance, so I can easily believe in > cases where bonnie++ numbers would not change but application performance > could be drasticly different. >
Well, that is sort of true for all benchmarks, but I do find that bonnie++ is the worst of the bunch. I consider it relatively useless compared to fio. Its just not a great benchmark for server type load and I find it lacking in the ability to simulate real applications. > as always it can depend heavily on your workload. you really do need to > figure out how to get your hands on one for your own testing. > > David Lang > > -- > Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-performance > -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
