Author: imp
Date: Thu Dec 1 04:35:43 2016
New Revision: 309351
URL: https://svnweb.freebsd.org/changeset/base/309351
Log:
Revert the 'performance' setting to 'NONE' from C2. C2 has issues with
USB in places, as well as having the potential for reducing
performance. Since this is used even when powerd isn't enabled, these
two problems can cause on servers. Supermicro X9 motherboards, for
example, have problems with the virtual IPMI USB keyboards and mice
attaching and detaching repeatedly. Since there are issues on some
CPUs with C2, fail safe by defaulting to not altering it.
MFC After: 3 days
Modified:
head/etc/defaults/rc.conf
Modified: head/etc/defaults/rc.conf
==============================================================================
--- head/etc/defaults/rc.conf Thu Dec 1 04:35:41 2016 (r309350)
+++ head/etc/defaults/rc.conf Thu Dec 1 04:35:43 2016 (r309351)
@@ -672,7 +672,7 @@ devfs_system_ruleset="" # The name (NOT
devfs_set_rulesets="" # A list of /mount/dev=ruleset_name settings to
# apply (must be mounted already, i.e. fstab(5))
devfs_load_rulesets="YES" # Enable to always load the default rulesets
-performance_cx_lowest="C2" # Online CPU idle state
+performance_cx_lowest="NONE" # Online CPU idle state
performance_cpu_freq="NONE" # Online CPU frequency
economy_cx_lowest="Cmax" # Offline CPU idle state
economy_cpu_freq="NONE" # Offline CPU frequency
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