STI, HLT in acpi_cpu_idle_c1
andy at fud.org.nz
Tue Jun 22 21:55:06 GMT 2004
On Tue, Jun 22, 2004 at 02:34:26PM -0700, Matthew Dillon wrote:
> :On Thursday 17 June 2004 07:33 pm, Matthew Dillon wrote:
> :> It kinda sounds like ACPI has bokered the other cpus. I'm not sure
> :> why one would even *want* to use ACPI to idle down Xeon's in an MP
> :> system, actually :-)
> :Power and heat savings.
> :John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
> All well and nice, but if you want power and heat savings you don't
> purchase a big honking SMP box in the first place.
Sure, but what about the larger scale.
Put 100 or a 1000 of them in a room and any heat savings make a big difference
to your air-conditioning and power distribution.
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