| From: | Manfred Koizar <mkoi-pg(at)aon(dot)at> |
|---|---|
| To: | Ernest E Vogelsinger <ernest(at)vogelsinger(dot)at> |
| Cc: | pgsql-performance(at)postgresql(dot)org, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Interesting incosistent query timing |
| Date: | 2003-06-16 23:45:58 |
| Message-ID: | bdlsev4mqcikl2on1ptqta5ic1mk39p4e4@4ax.com |
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| Lists: | pgsql-general pgsql-performance |
On Tue, 17 Jun 2003 00:46:54 +0200, Ernest E Vogelsinger
<ernest(at)vogelsinger(dot)at> wrote:
>For the first time run it executes in 1.5 - 2 seconds. From the second
>time, only 10 msec are needed for the same result
I'd call it inconsistent, if it were the other way round :-) I guess
you are seeing the effects of disk caching. Watch the drive LED
during the first run ...
Servus
Manfred
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