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authorad <ad@NetBSD.org>2008-03-10 22:03:40 +0000
committerad <ad@NetBSD.org>2008-03-10 22:03:40 +0000
commit907fdb3f7998751ac67b0801669e62462a415b77 (patch)
tree4ac63a5ca28d6b7432539b0300e551edc3a6b757 /sys/dev/microcode
parent5c1ec149097ed39fc572ec840408bc0938ef1dce (diff)
Implement an optimized, preemption-safe asm version of tsc_get_timecount().
The C version needs work to be preemption safe. Cuts the clock cycles for microtime() from 950 down to 300 on a Pentium D.
Diffstat (limited to 'sys/dev/microcode')
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