Re: Postmaster only takes 4-5% CPU

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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