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authorTony Luck <tony.luck@intel.com>2008-04-17 10:12:27 -0700
committerTony Luck <tony.luck@intel.com>2008-04-17 10:12:27 -0700
commit14d0647c98f52e2d76113d44de6b771ec87a934f (patch)
tree4b9407b00ad0b5baf5ee6245a4157a07062680b5 /arch/ia64/Kconfig
parent2a467d5f7d6bdc90c365db167a10022dd8351894 (diff)
parentb64f34cdfe5bef9dfed1304c513220b0f2862eca (diff)
downloadop-kernel-dev-14d0647c98f52e2d76113d44de6b771ec87a934f.zip
op-kernel-dev-14d0647c98f52e2d76113d44de6b771ec87a934f.tar.gz
Pull virt-cpu-accounting into release branch
Diffstat (limited to 'arch/ia64/Kconfig')
-rw-r--r--arch/ia64/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 8fa3faf..eef457f 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -283,6 +283,17 @@ config FORCE_MAX_ZONEORDER
default "17" if HUGETLB_PAGE
default "11"
+config VIRT_CPU_ACCOUNTING
+ bool "Deterministic task and CPU time accounting"
+ default n
+ help
+ Select this option to enable more accurate task and CPU time
+ accounting. This is done by reading a CPU counter on each
+ kernel entry and exit and on transitions within the kernel
+ between system, softirq and hardirq state, so there is a
+ small performance impact.
+ If in doubt, say N here.
+
config SMP
bool "Symmetric multi-processing support"
help
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