svn commit: r265329 - in head/sys: amd64/conf i386/conf

Nathan Whitehorn nwhitehorn at FreeBSD.org
Sun May 4 16:38:22 UTC 2014


Author: nwhitehorn
Date: Sun May  4 16:38:21 2014
New Revision: 265329
URL: http://svnweb.freebsd.org/changeset/base/265329

Log:
  Disable ACPI and P4TCC throttling by default, following discussion on
  freebsd-current. These CPU speed control techniques are usually unhelpful
  at best. For now, continue building the relevant code into GENERIC so that
  it can trivially be re-enabled at runtime if anyone wants it.
  
  MFC after:	1 month

Modified:
  head/sys/amd64/conf/GENERIC.hints
  head/sys/i386/conf/GENERIC.hints

Modified: head/sys/amd64/conf/GENERIC.hints
==============================================================================
--- head/sys/amd64/conf/GENERIC.hints	Sun May  4 16:00:59 2014	(r265328)
+++ head/sys/amd64/conf/GENERIC.hints	Sun May  4 16:38:21 2014	(r265329)
@@ -31,3 +31,5 @@ hint.attimer.0.at="isa"
 hint.attimer.0.port="0x40"
 hint.attimer.0.irq="0"
 hint.wbwd.0.at="isa"
+hint.acpi_throttle.0.disabled="1"
+hint.p4tcc.0.disabled="1"

Modified: head/sys/i386/conf/GENERIC.hints
==============================================================================
--- head/sys/i386/conf/GENERIC.hints	Sun May  4 16:00:59 2014	(r265328)
+++ head/sys/i386/conf/GENERIC.hints	Sun May  4 16:38:21 2014	(r265329)
@@ -39,3 +39,5 @@ hint.attimer.0.at="isa"
 hint.attimer.0.port="0x40"
 hint.attimer.0.irq="0"
 hint.wbwd.0.at="isa"
+hint.acpi_throttle.0.disabled="1"
+hint.p4tcc.0.disabled="1"


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