Messages in this thread | | | Date | Wed, 20 Oct 2004 19:08:02 +0200 | From | Andrea Arcangeli <> | Subject | Re: [PATCH 1/3] Separate IRQ-stacks from 4K-stacks option |
| |
On Wed, Oct 20, 2004 at 12:55:17PM -0400, Lee Revell wrote: > This was not my point, I agree that the two have nothing to do with each > other. But if a hardirq handler runs for 3ms then no user code can run > for 3ms. Therefore this is a problem if our goal for desktop response > is 1ms.
I sure agree it's a problem, but not always userspace code needs to run for the user not to notice. With ring buffers in the kernel for playback all you need is a nested irq for the user not to notice skips. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |