Messages in this thread | | | Date | Fri, 21 Jan 2000 14:37:49 -0800 (PST) | From | Jeremy Fitzhardinge <> | Subject | Re: Udelay and new CPUs |
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On 21-Jan-00 H. Peter Anvin wrote: > There are no "x86 cycles" on Crusoe, so it counts VLIW cycles. In > fact, on TM5400 it counts *nominal* cycles, since the actual cycle > length is variable (due to LongRun).
So RDTSC is useless for getting consistent udelay delays.
J
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