Re: [systemd-devel] systemd219 and Realtime priority

2019-11-08 Thread Lennart Poettering
On Fr, 08.11.19 14:07, Jon Sykes (jono.syke...@gmail.com) wrote: > Thanks for the info Lukas; much appreciated. As a side note for this would > it be useful to denote which versions of systemd the page > https://www.freedesktop.org/wiki/Software/systemd/MyServiceCantGetRealtime/ is > valid for?

Re: [systemd-devel] systemd219 and Realtime priority

2019-11-08 Thread Jon Sykes
Thanks for the info Lukas; much appreciated. As a side note for this would it be useful to denote which versions of systemd the page https://www.freedesktop.org/wiki/Software/systemd/MyServiceCantGetRealtime/ is valid for? That page cost me a fair amount of time trying to apply the solutions and

Re: [systemd-devel] systemd219 and Realtime priority

2019-11-08 Thread Lukas Nykryn
Hi! I think you should contact the Red Hat support with this question. Most of the distribution have CONFIG_RT_GROUP_SCHED disabled since in the general use cases people don't use it at all. RHEL is an exception here, since we keep that feature on, despite the recommendation of upstream, to cover

[systemd-devel] systemd219 and Realtime priority

2019-11-07 Thread Jon Sykes
Hi, I'm using RHEL7 with systemd-219-62.el7_6.6.x86_64. I've recently hit an issue whereby a process started by a systemd service cannot assign itself realtime priority. Digging into the issue it seems that it is because systemd starts all services within a cpu/system.slice/ cgroup which by