Controlling CPU usage for a user(systemd)

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1. stress test on four cores of the CPU

   vicky@ubuntu: stress-ng -c 4
   

2. use top, and find user-1001.slice

3. set property

   root@ubuntu: systemctl set-property user-1001.slice CPUQuota=10%
   

   10%的含义是指所有四核加起来不超过10%。

4. check property

   root@ubuntu: systemctl cat user-1001.slice
   

5. cgroup fs

   cd /sys/fs/cgroup/cpu/user.slice/usre-1001.slice
   cat cpu.cfs_quota_us
   

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