On Mon, 17.11.14 23:46, WaLyong Cho (walyong....@samsung.com) wrote: > Hello, > > I'd made two different services. One has *CPUSchedulingPolicy=rr* and > the others has *CPUShares=*. > > Could anyone help me?
If CPUShares= is set this has the effect that the service and all services in the same slice will be have the "cpu" cgroup controller turned on. Unfortunately this has the effect that RT scheduling will be unavailable then, unless an explicit RT budget is configured for that specific cgroup. This is something systemd cannot be used for nicely however, as we don't expose high-level controls for the RT budget. The RT budget is configured in the cpu.rt_runtime_us and cpu.rt_period_us cgroup attributes. You can write to them from ExecStartPre= for example using the %c specified. Another option is to simply disable CONFIG_RT_GROUP_SCHED in the kernel, if you don't need it anyway. Lennart -- Lennart Poettering, Red Hat _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
