freebsd-dev/etc/defaults
Adrian Chadd 709c1a78cf Drop the default for performance_cx_lowest (ie, what to use when AC is connected) to ACPI C2.
ACPI C3 ends up doing a lot more work before entering sleep, some of which
requires grabbing a global ACPI hardware serialising mutex.

Because of this, the more CPU cores you have, the more that lock contends
under load, reaching close to the #1 lock contention (after VM, which is being
worked on.)

Tested:

* Sandy bridge Xeon, 2 socket * 8 core
* Ivy bridge Xeon v2, 2 socket * 8 core
* Westmere-EX, 4 socket * 10 core
* Ivybridge desktop
* Sandybridge mobile
* Ivybridge mobile

MFC after:	2 weeks
2015-04-27 19:18:51 +00:00
..
bluetooth.device.conf
devfs.rules Unhide /dev/zfs in devfsrules_jail. 2012-03-16 21:30:26 +00:00
Makefile Honor MK_BLUETOOTH with etc/defaults/bluetooth.device.conf 2015-01-26 09:31:48 +00:00
periodic.conf Allow additional flags to be passed to netstat -i in the daily status check. 2015-03-27 00:37:41 +00:00
rc.conf Drop the default for performance_cx_lowest (ie, what to use when AC is connected) to ACPI C2. 2015-04-27 19:18:51 +00:00