On 02/05/2011 19:56, Jung-uk Kim wrote:
On Monday 02 May 2011 10:48 am, Bruce Cran wrote:
On Sat, 30 Apr 2011 21:20:28 -0700
Jeremy Chadwick<[email protected]> wrote:
Anyone know if machdep.cpu_idle_hlt still exists? Taken from
acpi(4) on RELENG_8:
It looks like it might have been replaced by machdep.idle:
machdep.idle: currently selected idle function
machdep.idle_available: list of available idle functions
machdep.idle: acpi
machdep.idle_available: spin, hlt, acpi,
It seems "machdep.cpu_idle_hlt" was deprecated long ago with this
commit by jeff (CC'ed):
http://svnweb.freebsd.org/base?view=revision&revision=178471
How likely is this to affect real-world performance on e.g. a busy web
server? As the comments say, the "fastest" are spin and mwait and the
slowest is acpi, which is also the default. I have no reference point
for what "fast" and "slow" mean in this context :)
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