c316aa2cec
This is a vast improvement over the i8254, since it is a simple memory load rather than a comples sequence of interrupt blocking, multiple input/output instructions, and wrap-around detection. I have not bothered to time the fundamental timecounter get routine, but gettimeofday(2) is 10% faster with the ELAN timecounte. The downside is that HZ=100 is not enough, 150 or more recommended, I use 250 myself. |
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acpica | ||
apm | ||
bios | ||
compile | ||
conf | ||
i386 | ||
ibcs2 | ||
include | ||
isa | ||
linux | ||
pci | ||
svr4 | ||
Makefile |