Hello, On Wed, Sep 14, 2016 at 11:25:49AM +0300, Nikolay Borisov wrote: > Hello, > So Tejun, my question is what is the problem for the blkcg information > to be transferred alongside the bio (which I believed to be happening > with the blkcg_association calls) so that even buffered writes are > throttled via the cgroup policies? Or are the numbers I'm seeing in > iostat actually the writes to the page-cache and not the underlying > block device? You gotta use cgroup v2 for that. Controlling buffered writes requires coordination between memory and io controllers which isn't possible with cgroup v1. Thanks. -- tejun -- 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
