在 2022/7/2 4:15, Tejun Heo 写道: > On Fri, Jul 01, 2022 at 01:08:21PM -0700, Benjamin Segall wrote: >> Yes, fixing (kernel) priority inversion due to CFS_BANDWIDTH requires a >> serious reworking of how it works, because it would need to dequeue >> tasks individually rather than doing the entire cfs_rq at a time (and >> would require some effort to avoid pinging every throttling task to get >> it into the kernel). > > Right, I don't have a good idea on evolving the current implementation > into something correct. As you pointed out, we need to account along > the sched_group tree but conditionally enforce on each thread. > > Thanks. > Understood. Thanks for your detailed explanation. Thanks. -- Qiao .
