Linux view CPU, memory, version information

1. View the number of physical CPUs
#cat/proc/cpuinfo |grep "Physical id" |sort |uniq|wc–l

2. View the number of logical CPUs
#cat/proc/cpuinfo |grep "Processor" |wc–l

3. View CPU is a few cores
#cat/proc/cpuinfo |grep "Cores" |uniq

4, check the CPU frequency
#cat/proc/cpuinfo |grep Mhz|uniq

5. # Uname-a

6. Linux euis1 2.6.9-55.elsmp #1 SMP Fri Apr 17:03:35 EDT i686 i686 i386 gnu/linux

(view current operating system kernel information)

7. # Cat/etc/issue | grep Linux

8. Red Hat Enterprise Linux as Release 4 (Nahant Update 5 (view current operating system release information)

9, # cat/proc/cpuinfo | grep name | cut-f2-d: | uniq-c

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

(see 8 logical CPUs, also know the CPU model)

9 # Cat/proc/cpuinfo | grep physical | uniq-c

4 Physical id:0

4 Physical Id:1

(Description is actually two 4-core CPUs)

10. # getconf long_bit

32

(indicates that the current CPU is running in 32bit mode, but does not mean that the CPU does not support 64bit)

11, # Cat/proc/cpuinfo | grep flags | grep ' LM ' | wc–l

8 (results greater than 0, description support 64bit calculation.) LM means long mode, support LM is 64bit)

A , how to obtain CPU For more information:

Linux command: Cat/proc/cpuinfo

- , using commands to judge several physical CPU , several cores, etc.:

Number of logical CPUs:
# Cat/proc/cpuinfo | grep "Processor" | Wc-l

Number of physical CPUs:
# Cat/proc/cpuinfo | grep "Physical ID" | Sort | Uniq | Wc-l

14. The number of cores per physical CPU:
# Cat/proc/cpuinfo | grep "CPU Cores" | Wc-l

15. Is it hyper-threading? If there are two logical CPUs with the same "core ID", then Hyper-threading is turned on. The number of logical CPUs (possibly cores, threads, or both) in each physical CPU:
# Cat/proc/cpuinfo | grep "Siblings"

1. View CPU Information commands

Cat/proc/cpuinfo

2. View memory Information commands

Cat/proc/meminfo

3. View the hard drive information command

Fdisk-l

Test the hardware information of the machine:   View CPU information (model)  # Cat/proc/cpuinfo | grep name | Cut-f2-d: | uniq-c       8  intel (R) Xeon (r) CPU            e5410   @ 2.3 3ghz  (see there are 8 logical CPUs, also know the CPU model)   # Cat/proc/cpuinfo | grep Physical | uniq-c       4 physical ID      : 0       4 physical ID   &NB Sp  : 1  (Description is actually two 4-core CPUs)   # getconf long_bit    32  (indicates that the current CPU is running in 32bit mode, But does not mean that the CPU does not support 64bit)   # Cat/proc/cpuinfo | grep Flags | grep ' LM ' | wc-l    8  (results greater than 0, description support 64bit calculation. LM means long mode, LM is 64bit)     full CPU details, But most of us don't care.  # Dmidecode | grep ' Processor information '    view memory information  # cat/proc/meminfo  # Uname-a linux euis1 2.6.9-55.ELSMP #1 SMP Fri Apr 17:03:35 EDT i686  i686 i386 gnu/linux  (view current operating system core information)   # CA T/etc/issue | Grep linux red Hat Enterprise Linux as Release 4 (Nahant Update 5)   (view current operating system release information)    view machine model  # Dmideco De | grep "Product Name"    view nic information  # DMESG | Grep-i eth  View operating system version #lsb_release-a

Linux view CPU, memory, version information