View CPU Information "Go" in Linux

"Turn from": http://blog.chinaunix.net/uid-23622436-id-3311579.html

Information in the Cat/proc/cpuinfo

• Processor The ID of the logical processor.
• ID of the processor that physical ID physically encapsulates.
• The ID of the core ID for each key.
• CPU cores The number of cores in the same physically encapsulated processor.
• Siblings the number of logical processors in the same physically encapsulated processor.

1 Viewing 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

View CPU information (model)
# Cat/proc/cpuinfo | grep name | cut-f2-d: | uniq-c
      8  Intel (R) Xe On (R) cpu            E5410   @ 2.33GHz
(see 8 logical CPUs, also know CPU model)

# Cat/proc/cpuinfo | grep physical | uniq-c
      4 physical id       : 0
      4 physical id      : 1
(description is actually two 4-core CPUs)
Ps:jay added on 10th, M Ay,
# In fact, there may be hyper-threading HT technology, not necessarily a 4-core, or 2-core 4 threads;

# getconf long_bit
  
( 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
(knot is greater than 0, the description supports 64bit calculations. LM refers to long mode, which supports LM 64bit)

Look at the CPU details in full, 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 April 17:03:35 EDT i686 i686 i386 gnu/linux
(View current operating system kernel information)

# Cat/etc/issue | grep Linux
Red Hat Enterprise Linux as Release 4 (Nahant Update 5)
(View current operating system release information)

View Machine Model
# Dmidecode | grep "Product Name"

viewing network card information
# DMESG | Grep-i ETH

View CPU Information "Go" in Linux