Messages in this thread | | | Date | Wed, 4 Sep 2013 01:05:38 +0200 | Subject | Re: [PATCH v7 1/4] spinlock: A new lockref structure for lockless update of refcount | From | Sedat Dilek <> |
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On Wed, Sep 4, 2013 at 12:55 AM, Dave Jones <davej@redhat.com> wrote: > On Wed, Sep 04, 2013 at 12:37:25AM +0200, Sedat Dilek wrote: > > > > You're spending more time on the task stats than on the actual lookup. > > > Maybe you should turn off CONFIG_TASKSTATS..But why that whole > > > irq_return thing? Odd. > > > > > > > [ init/Kconfig ] > > ... > > config TASKSTATS > > bool "Export task/process statistics through netlink" > > depends on NET <--- Difficult to disable it?! > > More likely you're getting bitten by the fact that CONFIG_KVM has > a 'select TASKSTATS' >
With CONFIG_KVM=n ...
$ egrep 'CONFIG_NET=|CONFIG_KVM=|CONFIG_TASKSTATS' .config CONFIG_TASKSTATS=y CONFIG_NET=y
- Sedat -
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