On Wed, Sep 04, 2013 at 01:05:38AM +0200, Sedat Dilek wrote: > 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 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 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html