cgroup在ceph中的应用（4）

节点cpu和内存节点查看
准备配置文件编辑/etc/cgconfig.conf 注意mon和osd部分根据实际情况进行增加以下为配置文件

mount {
	cpu = /sys/fs/cgroup/cpu;
	cpuacct = /sys/fs/cgroup/cpuacct;
	cpuset = /sys/fs/cgroup/cpu;
	devices = /sys/fs/cgroup/devices;
	memory = /sys/fs/cgroup/memory;
	freezer = /sys/fs/cgroup/freezer;
}
group mon {
	perm {
		task {
			uid = root;
			gid = root;
		}
		admin {
			uid = root;
			gid = root;
		}
	}
	cpu {
		cpuset.cpus = 0;
		cpuset.mems = 0;
	}
	memory {
		memory.limit_in_bytes = 2g;
		memory.memsw.limit_in_bytes = 3g;
       memory.soft_limit_in_bytes = 1g;
       memory.swappiness = 0;
       memory.oom_control = 1;
		memory.failcnt = 1;
	}
}
group osd0 {
	perm {
		task {
			uid = root;
			gid = root;
		}
		admin {
			uid = root;
			gid = root;
		}
	}
	cpu {
		cpuset.cpus = 1;   #绑定到指定的cpu 
		cpuset.mems = 0,1;
	}
	memory {
		memory.limit_in_bytes = 2g;  #物理内存限制为2G
		memory.memsw.limit_in_bytes = 3g;  #swap虚拟内存限制为3G
       memory.soft_limit_in_bytes = 1g;   #当物理内存成果1G将触发内存回收
       memory.swappiness = 0;   #优先使用物理内存
       memory.oom_control = 1;   #当内存到达上限，不关闭进程，只将对应进程进入sleep状态
		memory.failcnt = 1;    #报告当内存到达memory.limit_in_bytes次数
	}
}