Messages in this thread |  | | Subject | Re: [PATCH][RFC] per isr in_progress markers | From | Robert Love <> | Date | 09 Sep 2002 10:34:47 -0400 |
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On Mon, 2002-09-09 at 05:49, zwane@mwaikambo.name wrote:
> I sent you a bad patch yesterday.
I think Linus raises some important points wrt SMP performance. At the same time, I think your patch is very simple and has the possibility to provide improved performance on SMP _and_ UP when dealing with busy shared interrupt handlers.
For example, consider two handlers on the same line. Even on UP, we can find one slower handler blocking the run of another. So I think the benefit to latency is clear.
I dunno about throughput... Linus's points need to be addressed.
Robert Love
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