Since there is 2.1% system usage, kjournald has cpu-usage and postgres
has the status 'D' that's probably the case.
Arjen
> Jan Poslusny wrote:
>
> Did not your postmaster wait for harddisk ?
>
> Ruben wrote:
> > Hi all:
> >
> > When I run a (big) query from pgsql, postmaster used to take almost
> > 100%
> > of CPU. Now, with aparent no reason, Postmaster only takes
> 4-5% CPU and
> > the same query takes really longer to finish.
> >
> > I have tried renicing -20 postmaster but it still only takes a small
> > percentage of CPU, while 90% is idle.
> >
> > This is a "top" screen while running the query:
> >
> > 2:27pm up 5 min, 2 users, load average: 0,80, 0,26, 0,08 74
> > processes: 72 sleeping, 2 running, 0 zombie, 0 stopped CPU states:
> > 3,1% user, 2,1% system, 0,0% nice, 94,6% idle
> > Mem: 1031012K av, 246040K used, 784972K free, 0K
> shrd, 11496K
> > buff
> > Swap: 2040244K av, 0K used, 2040244K free
> 196916K
> > cached
> >
> > PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM
> TIME COMMAND
> > 1165 postgres 0 -20 3476 3476 2912 D < 4,5 0,3
> 0:02 postmaster
> > 268 root 15 0 0 0 0 SW 0,1 0,0
> 0:00 kjournald
> >
> > Any idea of how can I get postmaster to eat as much CPU as possible?
> >
> > Thanks a lot! Ruben.
> >
> >
> > ---------------------------(end of
> > broadcast)---------------------------
> > TIP 4: Don't 'kill -9' the postmaster
> >
>
>
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