Re: [PATCH v7 1/4] spinlock: A new lockref structure for locklessupdate of refcount

[Sedat Dilek]

On Wed, Sep 4, 2013 at 12:55 AM, Dave Jones <davej@xxxxxxxxxx> 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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