Hi Juri, On Tue, May 27, 2025 at 03:11:45PM +0200, Juri Lelli wrote: > Hello! > > On 22/05/25 17:06, Shashank Balaji wrote: > > Setting the cpu affinity mask of a SCHED_DEADLINE process using the cgroup v1 > > cpuset controller is already detailed. Add similar information for cgroup v2's > > cpuset controller. > > Thanks a lot for working on this. Really appreaciated. Thank you :) > > +5.2 Using cgroup v2 cpuset controller > > +------------------------------------- > > + > > + Assuming the cgroup v2 root is mounted at ``/sys/fs/cgroup``. > > + > > + cd /sys/fs/cgroup > > + echo '+cpuset' > cgroup.subtree_control > > + mkdir deadline_group > > + echo 0 > deadline_group/cpuset.cpus > > + echo 'root' > deadline_group/cpuset.cpus.partition > > + echo $$ > deadline_group/cgroup.procs > > + rt-app -t 100000:10000:d:0 -D5 > > Sadly, the example with cgroup v1 was made at a time when rt-app still > supported command line parameters like the above. I believe nowadays > that is not the case anymore and one needs to create a json file > describing the task to run it with rt-app. > > I would say we should update both examples to use something a little > more generic, e.g., > > # chrt --deadline --sched-runtime 10000000 --sched-period 100000000 0 yes >/dev/null & > > What do you think? > > Best, > Juri Haha, I was just about to send the patch with the chrt example, when I checked out the rt-app repo and saw that it's much more powerful. I thought, "they must have had a good reason for using rt-app instead of chrt for the example", and switched it to rt-app at the last second. I didn't know that rt-app doesn't support command line parameters anymore. I'll send out v2 with the chrt example. Thanks! Regards, Shashank
