Re: postmaster has high CPU (system) utilization - Mailing list pgsql-general

From Manfred Koizar
Subject Re: postmaster has high CPU (system) utilization
Date
Msg-id j2j38v82ttjd82evncui4trolep6jl6cgp@4ax.com
Whole thread Raw
In response to postmaster has high CPU (system) utilization  (Trevor Bylsma <tbylsma@atreus-systems.com>)
List pgsql-general
On 17 Mar 2003 18:10:14 -0500, Trevor Bylsma
<tbylsma@atreus-systems.com> wrote:
>postmaster will use most of the CPU for an extended amount of time
>(which isn't odd) but 75% of that is system level (which seems odd)...

You have not told us anything about your hardware and operating
system, but if you are running Linux and if you have IDE drives and if
DMA is not enabled, then

    hdparm -d 1 /dev/hd<x>

might help.

>Mem:   257136K av,  241656K used,   15480K free,  147956K shrd,   55740K buff

BTW, I hope "147956K shrd" is not exclusively due to Postgres shared
buffers.

Servus
 Manfred


pgsql-general by date:

Previous
From: Dennis Gearon
Date:
Subject: Re: Please help with this error message
Next
From: "scott.marlowe"
Date:
Subject: Re: Performance tuning in PostgreSQL