> with that stuff, gettimeofday() takes ~300 cycles, thats under 1
> microsecond too. (unless you have CONFIG_APM turned on, but people have
> posted patches to fix that case too)
.. But when you already run on a Pentium or up then it is faster to just
read the cycle register in user space directly[1]. This even works without
any kernel patches :)
Of course this won't help the original poster running a 486.
-Andi
[1] And also is fun to use when some other user encrypts something with
his PGP private key at the same time, but that's another thing.
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