Messages in this thread |  | | From | Tim Hockin <> | Subject | Re: [announce] [patch] limiting IRQ load, irq-rewrite-2.4.11-B5 | Date | Mon, 1 Oct 2001 15:26:26 -0700 (PDT) |
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> - a little utility written by Simon Kirby proved that no matter how much > softirq throttling, it's easy to lock up a pretty powerful Linux > box via a high rate of network interrupts, from relatively low-powered > clients as well. 2.4.6, 2.4.7, 2.4.10 all lock up. Alexey said it as > well that it's still easy to lock up low-powered Linux routers via more > or less normal traffic.
We proved this a year+ ago. We've got some code brewing to do fair sharing of IRQs for heavy load situations. I don't have all the details, but eventually...
> i've tested the patch on both UP, SMP, XT-PIC and APIC systems, it > correctly limits network interrupt rates (and other device interrupt > rates) to the given limit. I've done stress-testing as well. The patch is > against 2.4.11-pre1, but it applies just fine to the -ac tree as well.
Our solution/needs are slightly different - we want to service as many interrupts as possible and do as much network traffic as possible, and interactive-tasks be damned. - 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/
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