linux下查看cpu、内存和硬盘大小

转载至：http://blog.sina.com.cn/s/blog_535aa0930100ltz8.html

查cpu

#dmesg |grep -i xeon

CPU0: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

CPU1: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

CPU2: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

CPU3: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

CPU4: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

CPU5: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

CPU6: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

CPU7: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz stepping 05

显示8颗cpu，型号是E5520

上网搜出Intel Xeon E5520是4核，所以查询的机器是2颗cpu，每颗cpu四核

或cat /proc/cpuinfo
| grep name | cut -f2 -d: | uniq -c

     8  Intel(R) Xeon(R) CPU   E5410   @ 2.33GHz

    (看到有8个逻辑CPU, 也知道了CPU型号)

查内存

#free -m  以MB为单位查询内存

             total       used       free     shared    buffers     cached

Mem:          6076        572       5504          0        57        392

-/+ buffers/cache:        121       5954

Swap:         5535          0       5535

内存是6.076G
查硬盘大小

#df -m  以MB为单位查询

Filesystem             1M-块        已用     可用 已用% 挂载点

/dev/mapper/VolGroup00-LogVol00

                        132166      2779    122674   3% /

/dev/cciss/c0d0p1           99        31        64  33% /boot

none                      3039         0      3039   0% /dev/shm

硬盘132G+3G=135G

 
top 回车，按1，可以看到cpu和内存

top - 11:04:08 up 14 days, 13:06,  1 user,  load average: 0.00, 0.00, 0.00

Tasks:  91 total,   1 running,  88 sleeping,   2 stopped,   0 zombie

Cpu0  :  0.0% us,  0.0% sy,  0.0% ni, 99.7% id,  0.3% wa,  0.0% hi,  0.0% si

Cpu1  :  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0% si

Cpu2  :  0.0% us,  0.0% sy,  0.0% ni, 99.7% id,  0.3% wa,  0.0% hi,  0.0% si

Cpu3  :  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0% si

Cpu4  :  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0% si

Cpu5  :  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0% si

Cpu6  :  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0% si

Cpu7  :  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0% si

Mem:   6222096k total,   586464k used,  5635632k free,    59344k buffers

Swap:  5668856k total,        0k used,  5668856k free,   402416k cached