Messages in this thread | | | Date | Tue, 29 Oct 2013 09:20:09 -0400 | From | Neil Horman <> | Subject | Re: [PATCH] x86: Run checksumming in parallel accross multiple alu's |
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On Tue, Oct 29, 2013 at 02:11:49PM +0100, Ingo Molnar wrote: > > * Neil Horman <nhorman@tuxdriver.com> wrote: > > > I'm sure it worked properly on my system here, I specificially > > checked it, but I'll gladly run it again. You have to give me an > > hour as I have a meeting to run to, but I'll have results shortly. > > So what I tried to react to was this observation of yours: > > > > > Heres my data for running the same test with taskset > > > > restricting execution to only cpu0. I'm not quite sure whats > > > > going on here, but doing so resulted in a 10x slowdown of the > > > > runtime of each iteration which I can't explain. [...] > > A 10x slowdown would be consistent with not running your testcase > but 'perf bench sched messaging' by accident, or so. > > But I was really just guessing wildly here. > > Thanks, > > Ingo > Ok, well, I'll run it again in just a bit here. Neil
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