On Wed, Sep 04, 2013 at 01:05:38AM +0200, Sedat Dilek wrote:
> On Wed, Sep 4, 2013 at 12:55 AM, Dave Jones <da...@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
Weird.
sed -i '/TASKSTATS/d' .config
sed -i '/KVM/d' .config
make oldconfig
...
egrep 'CONFIG_NET=|CONFIG_KVM=|CONFIG_TASKSTATS' .config
# CONFIG_TASKSTATS is not set
CONFIG_NET=y
The NET dependancy shouldn't matter at all.
I don't see any other 'select TASKSTATS' in the tree.
Dave
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