DragonFly-2.3.0.864.gc5b83 master sys/platform/pc32/apic mpapic.c sys/platform/pc32/isa clock.c sys/platform/pc64/isa clock.c sys/platform/vkernel/platform systimer.c sys/sys systimer.h

[Hasso Tepper]

Sepherosa Ziehau wrote:
> Please repull from lapic_timer branch on my leaf git repo.  You could
> tune hw.acpi.c3_reloadthr (unit is sys_cputimer's tick, you need to do
> some calculation against kern.cputimer.freq :), bigger value the lower
> chance C3 is entered, but lower i8254 interrupt load.

Mkay. Seems to work, no interrupt load any more etc.

But what's the point of having this hw.acpi.cpu.c3_reloadthr? Interrupt 
load isn't significant even with 0 and lower interrupt rate would make 
point if it would mean less energy consumption - lesser interrupt rate = 
more chance to spend more time in lowest C state. No? ;)


-- 
Hasso Tepper