| From: | "Josh Berkus" <josh(at)agliodbs(dot)com> |
|---|---|
| To: | "Samuel J(dot) Sutjiono" <ssutjiono(at)wc-group(dot)com>, <pgsql-general(at)postgresql(dot)org>, <pgsql-sql(at)postgresql(dot)org> |
| Subject: | Re: [SQL] Why very high CPU usage |
| Date: | 2002-05-10 20:52:40 |
| Message-ID: | web-1456567@davinci.ethosmedia.com |
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| Thread: | |
| Lists: | pgsql-general pgsql-sql |
Samuel,
> I ran a search query against two tables keywords and catalog.
> Keywords table has about 765,000 records and catalog hase about
> 147,000 records. The query returns 9,000 records. This query had 70 -
> 80% of CPU usage. Are there any configuration parameter(s) that I
> need to check and change ?
And this is a problem because .... ?
High CPU usage is a *good* thing. Under perfect tuning, Postgres would
hit about 97% CPU usage ... for about 0.1 seconds (or less, depending
on your processor). The more CPU power used, the faster the query is
solved.
If you're having performaince problems, I suspect that they are located
somewhere other than your CPU.
-Josh Berkus
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