Messages in this thread | | | Date | Fri, 07 Mar 2008 13:46:51 -0500 | From | Bill Davidsen <> | Subject | Re: Toggling preemption on a running kernel |
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Matthew Hodgson wrote: > Hi, > > I'm trying to compare the performance of some networking code > (throughput and latency when receiving various volumes of UDP streams) > between a preemptible and non-preemptible 2.6.24 kernel, and was > wondering if it is possible to temporarily disable preemption on a > running preemptible kernel. Is it just a matter of loading a module > which calls preempt_enable() at load and preempt_disable() at unload - > or is that too naive? Is there an existing way of doing this? > That wouldn't get rid of all the code to support preempt, so it wouldn't be useful for comparing much of anything. I think you need to build two identical kernels here, with only one difference.
-- Bill Davidsen <davidsen@tmr.com> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot
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