On 2011-11-17 17:10, Jon Nelson wrote:
external sort ended, 7708696 disk blocks used: CPU 359.84s/57504.66u sec elapsed 58966.76 sec Am I to understand that the CPU portion of the sorting only took 6 minutes but the sort itself took almost 16.5 hours and used approx 60GB of disk space?
I realise you've had helpful answers by now, but.... that reads as 16 hours of cpu time to me; mostly user-mode but with 6 minute of system-mode. 98% cpu usage for the 16 hours elapsed. -- Jeremy -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance