...
[root@centos7_new ~]# tree /sys/fs/cgroup/ | less
/sys/fs/cgroup/
├── blkio
│ ├── blkio.io_merged
│ ├── blkio.io_merged_recursive
│ ├── blkio.io_queued
│ ├── blkio.io_queued_recursive
│ ├── blkio.io_service_bytes
│ ├── blkio.io_service_bytes_recursive
│ ├── blkio.io_serviced
│ ├── blkio.io_serviced_recursive
│ ├── blkio.io_service_time
[root@centos7_new ~]# virsh list --all
Id Name State
----------------------------------------------------
1 grml1 running
[root@centos7_new ~]# cat /sys/fs/cgroup/memory/machine.slice/machine-qemu\\x2d1\\x2dgrml1.scope/memory.stat
cache 97161216
rss 345870336
rss_huge 270532608
mapped_file 4206592
swap 0
pgpgin 75628
pgpgout 34407
pgfault 24533
pgmajfault 40
inactive_anon 208404480
active_anon 137486336
inactive_file 79470592
active_file 17670144
unevictable 0
hierarchical_memory_limit 9223372036854771712
hierarchical_memsw_limit 9223372036854771712
total_cache 97161216
total_rss 345870336
total_rss_huge 270532608
total_mapped_file 4206592
total_swap 0
total_pgpgin 75628
total_pgpgout 34407
total_pgfault 24533
total_pgmajfault 40
total_inactive_anon 208404480
total_active_anon 137486336
total_inactive_file 79470592
total_active_file 17670144
total_unevictable 0