Hello all, We are using Postgres 7.3 with JBoss 3.2.3 on a Linux Fedora
1.0 box. When I am looking at CPU activity with “top”, I
often see something like: PID USER PRI NI
SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND 14154 postgres 25 0 3592 3592
2924 R 99.1 0.3
93:53 0 postmaster At the same time, “mpstat” gives me something
like: 11:27:21 AM CPU %user %nice
%system %idle intr/s 11:27:21 AM all 2.99
0.00 18.94 78.08
105.94 The system is not visibly slow and response time is
satisfactory. Sometimes, the CPU usage drops to 1 or 2%, but not for long
usually. Also I have checked the number of open connections to Postgres and
there are only 5 (maximum is set to the default: 32). Should I be worried that Postgres is eating up 99% of my
CPU??? Or is this *expected*
behaviour? Please note that I am a developer, not a system
administrator, so maybe I misunderstand the usage of “top” here. Any help will be appreciated. Cyrille. |
- Re: [PERFORM] very high CPU usage in "top", but n... Cyrille Bonnet
- Re: [PERFORM] very high CPU usage in "top", ... Tom Lane
- Re: [PERFORM] very high CPU usage in "top&quo... Paul Tuckfield