[root@centos7 opt]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
[root@centos7 opt]# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 42
Model name: Intel(R) Xeon(R) CPU E31220 @ 3.10GHz
Stepping: 7
CPU MHz: 1627.984
BogoMIPS: 6185.67
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 8192K
NUMA node0 CPU(s): 0-3
[root@centos7 opt]# rpm -qa |grep qemu
qemu-kvm-1.5.3-105.el7.x86_64
...
As above,both of Host and guest are centos7
In Host, "lscpu" will show the L1/L2/L3 cache info. Guest also have such cache info when use "lscpu", because of the guest is implemented as a host standard process, I want to know the L1/L2/L3 cache which see in guest is really matter for guest?