| From: | eric soroos <eric-psql(at)soroos(dot)net> |
|---|---|
| To: | Pgsql Performance <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Capping CPU usage? |
| Date: | 2002-12-11 18:44:39 |
| Message-ID: | 98429170.1172519017@[4.42.179.151] |
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| Lists: | pgsql-performance |
> > I can't imagine that postmaster could do this, but I thought it there
> > might be some kind of Linux Kernel CPU quota option I haven't heard
> > of.
> > Can anybody point me in the right direction?
I was reading an interview last night (found from /.) on the O(1) scheduler. One thing that was mentioned was batch tasks which get only cpu that's not being used for other things, in blocks of 3 seconds. It has some harder enforcement of nice levels (i.e. batch @ 10 can completely prevent a batch @ 15 from running untill it completes, but is completely interruptable by ordinary processes). Since all the parameters are tweakable, many while running, this may be a place to look.
eric
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