Re: [PATCH 1/3] Separate IRQ-stacks from 4K-stacks option

From: Lee Revell
Date: Wed Oct 20 2004 - 11:52:02 EST


On Wed, 2004-10-20 at 11:35, Arjan van de Ven wrote:
> On Wed, Oct 20, 2004 at 11:46:32AM -0400, Timothy Miller wrote:
> > The rules about how long a hard irq would be allowed to run would have
> > to be draconian.
>
> they already are.

The IDE I/O completion in hardirq context means that one can run for
almost 3ms. Apparently at OLS it was decided that the target for
desktop responsiveness was 1ms. So this is a real problem.

What exactly do you mean by "draconian"?

Lee

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