cgroups

cgroups in Slackware

• Using libcgroup Tools
• Control Groups
• cgroups
• Introduction to Control Groups
• A Linux sysadmin's introduction to cgroups

Services

• rc.cgconfig is responsible for loading /etc/cgconfig.conf
• rc.cgred (CGroups Rules Engine Daemon) (cgrulesengd) places processes into appropriate cgroups based in /etc/cgrules.conf configuration

Commands

• lssubsys -am
• mount|grep cgroup
• Listing Controllers
• lscgroup

Mount controllers:

for controller in cpuset cpu cpuacct blkio memory devices freezer net_cls perf_event net_prio pids misc; do mount -t cgroup -o ${controller} none /sys/fs/cgroup/${controller}; done

Problems

/usr/sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup one of the needed subsystems is not mounted