On 6 November 2012 16:08, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote: > This is V2 Resend of my sched_select_cpu() work. Resend because didn't got much > attention on V2. Including more guys now in cc :) > > In order to save power, it would be useful to schedule work onto non-IDLE cpus > instead of waking up an IDLE one. > > To achieve this, we need scheduler to guide kernel frameworks (like: timers & > workqueues) on which is the most preferred CPU that must be used for these > tasks. > > This patchset is about implementing this concept. > > - The first patch adds sched_select_cpu() routine which returns the preferred > cpu which is non-idle. > - Second patch removes idle_cpu() calls from timer & hrtimer. > - Third patch is about adapting this change in workqueue framework. > - Fourth patch add migration capability in running timer > > Earlier discussions over v1 can be found here: > http://www.mail-archive.com/linaro-dev@xxxxxxxxxxxxxxxx/msg13342.html > > Earlier discussions over this concept were done at last LPC: > http://summit.linuxplumbersconf.org/lpc-2012/meeting/90/lpc2012-sched-timer-workqueue/ > > Module created for testing this behavior is present here: > http://git.linaro.org/gitweb?p=people/vireshk/module.git;a=summary Ping!! -- viresh -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
