Re: [PERFORM] pgbench results on a new server

2010-06-29 Thread Greg Smith
Craig James wrote: synchronous_commit = off full_page_writes = off I don't have any numbers handy on how much turning synchronous_commit and full_page_writes off improves performance on a system with a battery-backed write cache. Your numbers are therefore a bit inflated against similar one

Re: [PERFORM] pgbench results on a new server

2010-06-29 Thread Merlin Moncure
On Mon, Jun 28, 2010 at 1:12 PM, Craig James wrote: > On 6/25/10 12:03 PM, Greg Smith wrote: >> >> Craig James wrote: >>> >>> I've got a new server and want to make sure it's running well. >> >> Any changes to the postgresql.conf file? Generally you need at least a >> moderate shared_buffers (1GB

Re: [PERFORM] pgbench results on a new server

2010-06-28 Thread Craig James
On 6/25/10 12:03 PM, Greg Smith wrote: Craig James wrote: I've got a new server and want to make sure it's running well. Any changes to the postgresql.conf file? Generally you need at least a moderate shared_buffers (1GB or so at a minimum) and checkpoint_segments (32 or higher) in order for t

Re: [PERFORM] pgbench results on a new server

2010-06-25 Thread Greg Smith
Craig James wrote: I've got a new server and want to make sure it's running well. Any changes to the postgresql.conf file? Generally you need at least a moderate shared_buffers (1GB or so at a minimum) and checkpoint_segments (32 or higher) in order for the standard pgbench test to give good

Re: [PERFORM] pgbench results on a new server

2010-06-25 Thread Scott Marlowe
On Fri, Jun 25, 2010 at 2:53 PM, Craig James wrote: > I've got a new server and want to make sure it's running well.  Are these > pretty decent numbers? > > 8 cores (2x4 Intel Nehalem 2 GHz) > 12 GB memory > 12 x 7200 SATA 500 GB disks > 3WARE 9650SE-12ML RAID controller with BBU >  WAL on ext2, 2