一、查看作業系統版本
# uname -a
Linux apps-test-game 2.6.9-11.ELsmp #1 SMP Fri May 20 18:26:27 EDT 2005 i686 i68
6 i386 GNU/Linux
# cat /proc/version
Linux version 2.6.9-11.ELsmp (bhcompile@decompose.build.redhat.com) (gcc version
3.4.3 20050227 (Red Hat 3.4.3-22)) #1 SMP Fri May 20 18:26:27 EDT 2005
# cat /etc/issue
Red Hat Enterprise Linux AS release 4 (Nahant Update 1)
Kernel r on an m
#cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 1)
二、查看CPU
Linux下的CPU訊息放在/proc/cpuinfo檔案中,這個檔案裡面記錄了許多詳細的訊息,可以用fopen打開它或者用popen執行一條cat命令來得到結果。
#cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3200.847
cache size : 2048 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_c
pl cid xtpr
bogomips : 6275.07
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3200.847
cache size : 2048 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_c
pl cid xtpr
bogomips : 6389.76
processor : 2
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3200.847
cache size : 2048 KB
physical id : 3
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_c
pl cid xtpr
bogomips : 6389.76
processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 10
cpu MHz : 3200.847
cache size : 2048 KB
physical id : 3
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_c
pl cid xtpr
bogomips : 6389.76
CPU的完整訊息。
#cat /proc/cpuinfo | grep processor | wc -l
4
CPU計數,有4個CPU(可能為2個雙核的)。
三、查看(記憶體)內存訊息
與CPU一樣,Linux下的記憶體訊息放在/proc/meminfo檔案中,這個檔案裡面記錄了許多詳細的訊息,可以用fopen打開它或者用popen執行一條cat命令來得到結果。
比如:
#free
total used free shared buffers cached
Mem: 1034148 846312 187836 0 57304 418236
-/+ buffers/cache: 370772 663376
Swap: 2031608 0 2031608
或者:
#cat /proc/meminfo
MemTotal: 1034148 kB
MemFree: 188620 kB
Buffers: 57312 kB
Cached: 418228 kB
SwapCached: 0 kB
Active: 559084 kB
Inactive: 226244 kB
HighTotal: 130496 kB
HighFree: 252 kB
LowTotal: 903652 kB
LowFree: 188368 kB
SwapTotal: 2031608 kB
SwapFree: 2031608 kB
Dirty: 60 kB
Writeback: 0 kB
Mapped: 364944 kB
Slab: 49184 kB
Committed_AS: 487816 kB
PageTables: 2832 kB
VmallocTotal: 106488 kB
VmallocUsed: 3504 kB
VmallocChunk: 102648 kB
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 2048 kB