On Wed, 2010-05-26 at 12:14 -0500, James Bottomley wrote: > On Wed, 2010-05-26 at 19:00 +0200, Peter Zijlstra wrote: > > On Wed, 2010-05-26 at 11:54 -0500, James Bottomley wrote: > > > Given that I'm in the latter category, I think suspend blockers is a > > > reasonable solution to an existing problem. I like Alan's idea of > > > restricting the API into a single user space program so we contain the > > > API contamination ... but realistically that's mostly the current > > > suspend blockers anyway. > > > > There's a _large_ difference between resource limits and these wonky > > suspend blockers. > > Well, you have policy and then you have implementation ... suspend > blockers just looks like an implementation to me. It seems to be > reasonably well suited in that regard ... after all, we kill processes > that exhaust memory for instance or cut off write privileges to those > that go over quota. Preventing power hungry processes from consuming > power by not allowing them to run until there's a wakeup event is fairly > gentle by those standards. The difference is that the limit should be per task. In this model a process that only runs a little still gets suspended. > > The main and most important one being that suspend is a global property > > and can/will hurt sensible tasks. It puts the whole task model upside > > down. > > OK, so I believe you have an android phone ... it already implements > this model ... specifically what are the problems on that platform this > causes? I do not have one, nor have I ever written an application for it (nor will I likely ever do that, since I detest Java), but I would expect an application to run when its runnable. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html