svn commit: r188153 - user/dfr/xenhvm/6/sys/amd64/conf

[Doug Rabson]

Author: dfr
Date: Thu Feb  5 15:09:42 2009
New Revision: 188153
URL: http://svn.freebsd.org/changeset/base/188153

Log:
  Adaptive mutex spinning turns out to be very slightly slower on Xen, probably
  due to scheduling conflicts with other guests within the same hypervisor.

Modified:
  user/dfr/xenhvm/6/sys/amd64/conf/XENHVM

Modified: user/dfr/xenhvm/6/sys/amd64/conf/XENHVM
==============================================================================
--- user/dfr/xenhvm/6/sys/amd64/conf/XENHVM	Thu Feb  5 15:09:04 2009	(r188152)
+++ user/dfr/xenhvm/6/sys/amd64/conf/XENHVM	Thu Feb  5 15:09:42 2009	(r188153)
@@ -59,7 +59,8 @@ options 	SYSVMSG			# SYSV-style message 
 options 	SYSVSEM			# SYSV-style semaphores
 options 	_KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
 options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
-options 	ADAPTIVE_GIANT		# Giant mutex is adaptive.
+options		NO_ADAPTIVE_MUTEXES
+#options 	ADAPTIVE_GIANT		# Giant mutex is adaptive.
 
 options		KDB
 options		DDB
@@ -69,6 +70,7 @@ device		atpic			# 8259A compatability
 
 # Linux 32-bit ABI support
 options 	LINPROCFS		# Cannot be a module yet.
+options		SMP
 
 # Bus support.
 device		acpi