Re: [Task Scheduler] scheduling flexibility

You really want it the other way around. Users should tell when they don't
tolerate such a delay.

You can not expect the users to do the right thing, so let's make the
default what makes the most sense for the platform.

Kenneth


On Tue, Nov 5, 2013 at 3:43 PM, Kis, Zoltan <zoltan.kis@intel.com> wrote:

> On Tue, Nov 5, 2013 at 3:35 PM, Michael van Ouwerkerk
> <mvanouwerkerk@chromium.org> wrote:
> > How do people feel about allowing for scheduling flexibility in the Task
> > Scheduler API? The goal of this feature would be to save battery power.
> If
> > the system has flexibility about when to precisely run a task, it could
> > batch multiple tasks together, or only run tasks when the device is
> awake.
> > This way, we could avoid waking up devices too frequently.
> >
> > Some use cases require precise scheduling e.g. an alarm in the morning,
> or a
> > cooking timer. But there are many tasks that are much less time
> sensitive,
> > these could be scheduled flexibly e.g. syncing a news feed or
> auto-updating
> > to a new version.
> >
> > Any comments? My apologies if this issue has been discussed previously.
> >
> > Regards,
> >
> > Michael van Ouwerkerk
> >
>
> Valid point. In my view, the use case could be formulated like this:
> - a given platform or device policy / setting may support "scheduling
> heartbeat" (similar to IP heartbeat)
> - applications should have means to tell the user agent if they can
> tolerate small delays (and how much. in terms of lower bound, desired,
> upper bound) in task scheduling, let's call this "request"
> - the user agent should have means to tell the application the
> "response" about whether it can respect the request or not, or if it
> can respect it with changes in requested max delay. The app can then
> adapt to this.
>
> That would mean introducing a function call (with the range expressed
> as parameters), and a new event (with actual max delay as parameter).
>
> Regards,
> Zoltan
>
>


-- 
Kenneth Rohde Christiansen
Web Platform Architect, Intel Corporation.
Phone  +45 4294 9458 ﹆﹆﹆