On Friday 29 July 2011 13:50:49 Marius Perjeru wrote: > Hi, > > We configured a systemd environment, but we cannot have real time access > when running an application. > > We have defined a xorg.service which starts the X, and every script > runned gets under systemd/xorg.service control group, and because this > control group does not have real time access (cpu.rt_runtime_us contains > 0 value), we cannot run real time applications. > > I tryied to create a system_at_marius.service containing: > [Unit] > Description=Systemd for marius user > > [Service] > User=marius > PAMName=systemd > ExecStart=/bin/systemd --user > > [Install] > WantedBy=multi-user.target > > But it won't start: > Starting Systemd for marius user... > <29>systemd[1]: systemd_at_marius.service: main process exited, > code=exited, status=1 > <29>systemd[1]: Unit systemd_at_marius.service entered failed state. > > Is there anyway that I could give real time access to some control > groups (or services)? I know there is LimitRTTIME variable which I set > it to infinity, but the behavior does not change. > > I also tried to create a realtime group, added it to > /etc/security/limits.d/99-realtime.conf > @realtime - rtprio 99 > @realtime - memlock unlimited > > And add marius user to this group. But that also did not change anything. > > Best Regards, > Marius > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/systemd-devel > >
We do this: [Service] StandardOutput=syslog WorkingDirectory=/data/data/logs ControlGroup=cpu:/ cpuacct:/screen LimitRTPRIO=2 LimitRTTIME=60000000 CPUSchedulingPolicy=rr CPUSchedulingPriority=1 ExecStartPre=/usr/local/onelan/ntb/bin/ntb_apply_screen_settings /etc/onelan/ntb/x.conf ExecStartPre=-/bin/plymouth quit --retain-splash ExecStart=/usr/bin/Xorg :0 -noreset -nolisten tcp -background none vt1 -dpi 75 -logfile /data/data/logs/screen-server.log -dumbSched -config /etc/onelan/ntb/x.conf Barry _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
