Messages in this thread | | | Date | Thu, 25 Apr 2013 16:45:23 +0530 | Subject | Re: [PATCH V5 1/5] workqueues: Introduce new flag WQ_POWER_EFFICIENT for power oriented workqueues | From | Viresh Kumar <> |
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On 25 April 2013 16:43, Amit Kucheria <amit.kucheria@linaro.org> wrote: > On Thu, Apr 25, 2013 at 9:13 AM, Viresh Kumar <viresh.kumar@linaro.org> wrote: >> On 25 April 2013 09:00, Amit Kucheria <amit.kucheria@linaro.org> wrote: >>> Yes. That was my intention - preventing a prompt on existing defconfigs and >>> there by maintaining current behavior. >> >> Hmm... Following is the version after fixing all problems you reported. >> @Tejun: I have attached it too as gmail's copy-paste may break it. Please >> consider applying this series if it looks fine to you. >> >> >> ---------------x----------------x--------------------- >> >> From: Viresh Kumar <viresh.kumar@linaro.org> >> Date: Mon, 8 Apr 2013 16:45:40 +0530 >> Subject: [PATCH V5 1/5] workqueues: Introduce new flag WQ_POWER_EFFICIENT for >> power oriented workqueues >> >> Workqueues can be performance or power-oriented. Currently, most workqueues are >> bound to the CPU they were created on. This gives good performance (due to cache >> effects) at the cost of potentially waking up otherwise idle cores just to >> process some work. To save power, we can allow the work to be rescheduled on a >> core that is already awake. >> >> Workqueues created with the WQ_UNBOUND flag will allow some power savings. >> However, we don't change the default behaviour of the system. To enable >> power-saving behaviour, a new config option CONFIG_WQ_POWER_EFFICIENT needs to >> be turned on. This option can also be overridden by the >> workqueue.power_efficient boot parameter. >> >> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> > > For the series, you can add my: > > Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Thanks.
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