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Lscpu命令

最近看到lscpu命令，简单实在。CPU的型号和L1，L2，L3 Cache大小等信息一目了然了。

类似的命令包括lsusb、lsblk命令。

1.lscpu

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xiaobaoqiu@xiaobaoqiu:~/octopress$ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4                //逻辑cpu的个数
On-line CPU(s) list:   0-3
Thread(s) per core:    2
Core(s) per socket:    2
Socket(s):             1
NUMA 节点：         1
厂商 ID：           GenuineIntel
CPU 系列：          6
型号：              58
步进：              9
CPU MHz：             1200.000
BogoMIPS:              5183.37
虚拟化：           VT-x
L1d 缓存：          32K
L1i 缓存：          32K
L2 缓存：           256K
L3 缓存：           3072K
NUMA node0 CPU(s):     0-3

2.lsusb

lsusb命令显示usb设备的情况

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xiaobaoqiu@xiaobaoqiu:~/octopress$ lsusb
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse
Bus 003 Device 002: ID 04b3:3025 IBM Corp. NetVista Full Width Keyboard
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

3.lsblk

lsblk命令显示块设备的情况

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xiaobaoqiu@xiaobaoqiu:~/octopress$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 111.8G  0 disk 
├─sda1   8:1    0   350M  0 part 
└─sda2   8:2    0 111.5G  0 part 
sdb      8:16   0 465.8G  0 disk 
├─sdb1   8:17   0 299.8G  0 part 
├─sdb2   8:18   0  15.1G  0 part [SWAP]
└─sdb3   8:19   0 150.9G  0 part /