Messages in this thread |  | | Date | Wed, 10 Jan 2001 12:25:52 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: [PLEASE-TESTME] Zerocopy networking patch, 2.4.0-1 |
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On Wed, 10 Jan 2001, Manfred Spraul wrote:
> That means sendmsg() changes the page tables? I measures > smp_call_function on my Dual Pentium 350, and it took around 1950 cpu > ticks.
well, this is a performance problem if you are using threads. For normal processes there is no need for a SMP cross-call, there TLB flushes are local only.
Ingo
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