Re: [CentOS] Performance issue

2013-02-09 Thread Carlos Henrique Reimer
Hi, All 16 core show always %idle greater than 95% (mpstat -P ALL). So can I assume there is no CPU constraint in this box? Thank you! On Sat, Feb 9, 2013 at 4:37 PM, Stephen Harris wrote: > On Sat, Feb 09, 2013 at 04:24:19PM -0200, Carlos Henrique Reimer wrote: > > processors. vmstat r colum

Re: [CentOS] Performance issue

2013-02-09 Thread Stephen Harris
On Sat, Feb 09, 2013 at 04:24:19PM -0200, Carlos Henrique Reimer wrote: > processors. vmstat r column "run queue" usually indicates values higher > than 2 and less than 5 but "Load Average" values from top, sar -q and other > commands show always values less than 1. > > Should not these values be

[CentOS] Performance issue

2013-02-09 Thread Carlos Henrique Reimer
Hi, I suspect a CPU bottleneck in one of our PostgreSQL servers but not sure how to confirm the suspect. It's a DELL Box running CentOS 5.4 with 64GB RAM and 16 XEON E7430 2.13 GHz processors. vmstat r column "run queue" usually indicates values higher than 2 and less than 5 but "Load Average" va