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| author | Tony Luck <tony.luck@intel.com> | 2008-04-17 19:12:27 +0200 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-04-17 19:12:27 +0200 |
| commit | 14d0647c98f52e2d76113d44de6b771ec87a934f (patch) | |
| tree | 4b9407b00ad0b5baf5ee6245a4157a07062680b5 /arch/ia64/Kconfig | |
| parent | Pull fsys_gettimeofday into release branch (diff) | |
| parent | [IA64] VIRT_CPU_ACCOUNTING (accurate cpu time accounting) (diff) | |
| download | linux-14d0647c98f52e2d76113d44de6b771ec87a934f.tar.xz linux-14d0647c98f52e2d76113d44de6b771ec87a934f.zip | |
Pull virt-cpu-accounting into release branch
Diffstat (limited to 'arch/ia64/Kconfig')
| -rw-r--r-- | arch/ia64/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 8fa3faf5ef1b..eef457fda08f 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 |