On Tue, May 14 2013, Tejun Heo wrote: > Hello, Jens. > > This is the pull request for patches which implement proper hierarchy > support in blk-throttle and remove .broken_hierarchy tagging from > blkcg. > > http://thread.gmane.org/gmane.linux.kernel.cgroups/7119 > > The implementation is fairly straight-forward in that it just repeats > the same scheduling at each layer until it reaches the top and thus > isn't very scalable. It also still has an issue where a nested cgroup > could get lower than configured limits as it travels towards root but > the severity is at an acceptable level after Vivke's start time > adjustment patch. The issue ultimately is a problem in the scheduling > algorithm itself and can also show up in flat hierarchy given the > right (well, wrong) IO pattern. If it still is an actual problem, > which I don't think is, we should be able to work on it later on in > fairly isolated manner. > > While the implementation isn't perfect, it should be good enough in > most cases with a few levels of nesting and this allows the rest of > cgroup to proceed towards unified hierarchy handling. > > The series is based on top of v3.10-rc1 and available in the following > git branch > > git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git blk-throttle-hierarchy > > for you to fetch changes up to 9138125beabbb76b4a373d4a619870f6f5d86fc5: > > blk-throttle: implement proper hierarchy support (2013-05-14 13:52:38 -0700) Thanks Tejun, I'll pull this in for 3.11. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
