Re: Reliability recommendations
| От | Mark Kirkwood |
|---|---|
| Тема | Re: Reliability recommendations |
| Дата | |
| Msg-id | 43FFB067.2070406@paradise.net.nz обсуждение |
| Ответ на | Re: Reliability recommendations (Dan Gorman <dgorman@hi5.com>) |
| Список | pgsql-performance |
Dan Gorman wrote: > All, > > Was that sequential reads? If so, yeah you'll get 110MB/s? How big was > the datafile size? 8MB? Yeah, you'll get 110MB/s. 2GB? No, they can't > sustain that. There are so many details missing from this test that > it's hard to have any context around it :) > Actually they can. Datafile size was 8G, machine had 2G RAM (i.e. datafile 4 times memory). The test was for a sequential read with 8K blocks. I believe this is precisely the type of test that the previous posters were referring to - while clearly, its not a real-world measure, we are comparing like to like, and as such terrible results on such a simple test are indicative of something 'not right'. regards Mark P.s. FWIW - I'm quoting a test from a few years ago - the (same) machine now has 4 RAID0 ata disks and does 175MB/s on the same test....
В списке pgsql-performance по дате отправления: