Re: [PATCH][RFT] simple deadline I/O scheduler

From: Rik van Riel (
Date: Mon Jan 07 2002 - 14:57:30 EST

On Mon, 7 Jan 2002, Mark Hahn wrote:

> > Would it be possible to introduce concept of I/O priority? I.e. I want
> > updatedb not to load disk if I need it for something else?
> makes sense to me. actually, VM is another place where priority
> could be quite useful - for instance, how hard the VM scavenges
> a proc's pages. oops, there I go advocating a tunable...

This seems to work very badly, making one process swap more
means it pagefaults more and sucks up more IO bandwidth ;)



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