Messages in this thread | | | Date | Fri, 26 Nov 1999 14:14:43 +0100 | From | Manfred Spraul <> | Subject | Re: spin_unlock optimization(i386) |
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Andrea Arcangeli wrote: > > On Fri, 26 Nov 1999, Manfred Spraul wrote: > > >It's invisible on single CPU system, but clearly visible on SMP: > > Your proggy hangs immediatly on UP no matter if using the locked bit set > or the movl. I am not sure if this is expected yet (but after a fast read > I can't see anything that depends on the hardware to be SMP in your > proggy). Hmm... > I tried it on an AMD K6/200: It doesn't hang, it's only slower: it should print a new line every half hour ;)
Could you reduce the retry counter from 5000 to 5 ( ~ line 75)?
-- Manfred
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