Re: [PERFORM] Zeus IOPS

2010-05-31 Thread Brad Nicholson
On Fri, 2010-05-28 at 13:48 -0600, Scott Marlowe wrote: Anybody on the list have any experience with these drives? They get good numbers but I can't find diddly on them on the internet for the last year or so. http://www.stec-inc.com/product/zeusiops.php I'd heard that they were a popular

Re: [PERFORM] Zeus IOPS

2010-05-31 Thread Scott Marlowe
On Mon, May 31, 2010 at 7:06 AM, Brad Nicholson bnich...@ca.afilias.info wrote: On Fri, 2010-05-28 at 13:48 -0600, Scott Marlowe wrote: Anybody on the list have any experience with these drives?  They get good numbers but I can't find diddly on them on the internet for the last year or so.

Re: [PERFORM] planner costs in warm cache tests

2010-05-31 Thread Jesper Krogh
On 2010-05-30 20:34, Tom Lane wrote: Jesper Kroghjes...@krogh.cc writes: testdb=# set seq_page_cost = 0.1; SET testdb=# set random_page_cost = 0.1; SET Well, hmm, I really doubt that that represents reality either. A page access is by no means free even when the page is

Re: [PERFORM] planner costs in warm cache tests

2010-05-31 Thread Tom Lane
Jesper Krogh jes...@krogh.cc writes: On 2010-05-30 20:34, Tom Lane wrote: Well, hmm, I really doubt that that represents reality either. A page access is by no means free even when the page is already in cache. I don't recall anyone suggesting that you set these numbers to less than perhaps