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major/gist:a8d6a068bd1fdceef97c

Created November 3, 2014 20:17
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systemd aggressive cgroup trimming
Raw
gistfile1.txt
If I leave a KVM virtual machine running for a short while, I see this:
# find /sys/fs/cgroup -name machine-qem*
/sys/fs/cgroup/perf_event/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/net_cls,net_prio/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/freezer/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/cpuset/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/systemd/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
Once I reboot it, I see this:
# find /sys/fs/cgroup -name machine-qem*
/sys/fs/cgroup/perf_event/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/blkio/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/net_cls,net_prio/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/freezer/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/devices/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/memory/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/cpu,cpuacct/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/cpuset/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
/sys/fs/cgroup/systemd/machine.slice/machine-qemu\x2dinstance\x2dc51f7c4b\x2d12a1\x2d4cfe\x2d87e0\x2d55b237ef31d2.scope
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