0511e210cb
1) Its critical for HTT. There's less foot-shooting opportunity. 2) I've seen significant improvements in interactive response to commands over ssh sessions. I assume this is less lock contention. 3) As incentive to finish the idle cpu IPI wakeup stuff. 4) The machine on my desk was blowing hot air in my general direction because somebody forgot to turn the hlt on, and it saves 50 watts per cpu.. The machdep.cpu_idle_hlt sysctl is still available, but now the default is the same as on UP kernels. |
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acpica | ||
amd64 | ||
compile | ||
conf | ||
ia32 | ||
include | ||
isa | ||
pci | ||
Makefile |