Re: Usage up to 50% CPU
От | Andres Retzlaff |
---|---|
Тема | Re: Usage up to 50% CPU |
Дата | |
Msg-id | BAY141-F16157D6D49CE3E6DC40F1A8B4E0@phx.gbl обсуждение исходный текст |
Ответ на | Re: Usage up to 50% CPU (Michael Stone <mstone+postgres@mathom.us>) |
Список | pgsql-performance |
>On Fri, Apr 27, 2007 at 07:23:41PM +0930, Shane Ambler wrote: >>I would think that as you are sitting and watching the cpu usage, your >>query would seem to taking a while to run, leading me to wonder if you are >>getting a full table scan that is causing pg to wait for disk response? >If so, you probably wouldn't be seeing that much cpu usage... (if the cpu >is waiting for disk it's >idling) >Mike Stone Yes, I notice 3 steeps: 1) the CPU is at 100% (of 1 cpu) 2) the HDD is 100% but no much of the cpu 3) I get the query display I will see what can I do to improved the speed. At this moment is taking 10 sec to get the responce. Regards, Andrew Retzlaff _________________________________________________________________ Advertisement: Its simple! Sell your car for just $30 at carsales.com.au http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fsecure%2Dau%2Eimrworldwide%2Ecom%2Fcgi%2Dbin%2Fa%2Fci%5F450304%2Fet%5F2%2Fcg%5F801577%2Fpi%5F1005244%2Fai%5F838588&_t=754951090&_r=tig&_m=EXT
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