Re: [PERFORM] intel s3500 -- hot stuff

2015-07-18 Thread Julien Rouhaud
On 10/12/2014 17:52, Jeff Janes wrote: > On Tue, Dec 9, 2014 at 12:43 PM, Bruce Momjian > wrote: > > On Mon, Dec 8, 2014 at 03:40:43PM -0600, Merlin Moncure wrote: > > >> Did not see consistent measurable gains > 256 > > >> effective_io_concurrency. Interest

Re: [PERFORM] intel s3500 -- hot stuff

2014-12-10 Thread Jeff Janes
On Tue, Dec 9, 2014 at 12:43 PM, Bruce Momjian wrote: > On Mon, Dec 8, 2014 at 03:40:43PM -0600, Merlin Moncure wrote: > > >> Did not see consistent measurable gains > 256 > > >> effective_io_concurrency. Interesting that at setting of '2' (the > > >> lowest possible setting with the feature ac

Re: [PERFORM] intel s3500 -- hot stuff

2014-12-09 Thread Bruce Momjian
On Mon, Dec 8, 2014 at 03:40:43PM -0600, Merlin Moncure wrote: > >> Did not see consistent measurable gains > 256 > >> effective_io_concurrency. Interesting that at setting of '2' (the > >> lowest possible setting with the feature actually working) is > >> pessimal. > > > > Very interesting. Whe

Re: [PERFORM] intel s3500 -- hot stuff

2014-12-08 Thread Merlin Moncure
On Sat, Dec 6, 2014 at 7:08 AM, Bruce Momjian wrote: > On Wed, Nov 5, 2014 at 12:09:16PM -0600, Merlin Moncure wrote: >> effective_io_concurrency 1: 46.3 sec, ~ 170 mb/sec peak via iostat >> effective_io_concurrency 2: 49.3 sec, ~ 158 mb/sec peak via iostat >> effective_io_concurrency 4: 29.1 s

Re: [PERFORM] intel s3500 -- hot stuff

2014-12-06 Thread Bruce Momjian
On Wed, Nov 5, 2014 at 12:09:16PM -0600, Merlin Moncure wrote: > effective_io_concurrency 1: 46.3 sec, ~ 170 mb/sec peak via iostat > effective_io_concurrency 2: 49.3 sec, ~ 158 mb/sec peak via iostat > effective_io_concurrency 4: 29.1 sec, ~ 291 mb/sec peak via iostat > effective_io_concurrency

Re: [PERFORM] intel s3500 -- hot stuff

2014-11-05 Thread Merlin Moncure
On Wed, Nov 5, 2014 at 11:40 AM, Merlin Moncure wrote: > I recently sourced a 300gb intel s3500 ssd to do some performance > testing. I didn't see a lot of results on the web so I thought I'd > post some numbers. Testing machine is my workstation crapbox with 4 > cores and 8GB ram (of which ab

[PERFORM] intel s3500 -- hot stuff

2014-11-05 Thread Merlin Moncure
I recently sourced a 300gb intel s3500 ssd to do some performance testing. I didn't see a lot of results on the web so I thought I'd post some numbers. Testing machine is my workstation crapbox with 4 cores and 8GB ram (of which about 4 is usable by the ~ 50gb database). The drive cost 260$ at