On 12/07/2011 02:09, lars wrote:
Oh, and iowait hovers around 20% when SELECTs are slow: avg-cpu: %user %nice %system %iowait %steal %idle 1.54 0.00 0.98 18.49 0.07 78.92 When SELECTs are fast it looks like this: avg-cpu: %user %nice %system %iowait %steal %idle 8.72 0.00 0.26 0.00 0.00 91.01 Note that this is a 12 core VM. So one core at 100% would show as 8.33% CPU.
Now only if you could do an "iostat -x" and show the output in both cases... -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
