Messages in this thread |  | | Date | Wed, 3 Oct 2001 10:34:23 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: [announce] [patch] limiting IRQ load, irq-rewrite-2.4.11-B5 |
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On Tue, 2 Oct 2001, jamal wrote:
> [...] please have the courtesy of at least posting results/numbers of > how this improved things and under what workloads and conditions. > [...]
500 MHz PIII UP server, 433 MHz client over a single 100 mbit ethernet using Simon Kirby's udpspam tool to overload the server. Result: 2.4.10 locks up before the patch. 2.4.10 with the first generation irqrate patch applied protects against the lockup (if max_rate is correct), but results in dropped packets. The auto-tuning+polling patch results in a working system and working network, no lockup and no dropped packets. Why this happened and how it happened has been discussed extensively.
(the effect of polling-driven networking is just an extra and unintended bonus side-effect.)
Ingo
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