Is there any difference between processor and core?
- by Salvador
The following two command seems to give me different information about the same hardware
srs@ubuntu:~$ cat /proc/cpuinfo | grep -e processor -e cores
processor : 0
cpu cores : 4
processor : 1
cpu cores : 4
processor : 2
cpu cores : 4
processor : 3
cpu cores : 4
srs@ubuntu:~$ sudo dmidecode -t processor
# dmidecode 2.9
SMBIOS 2.6 present.
Handle 0x0004, DMI type 4, 42 bytes
Processor Information
Socket Designation: LGA1155
Type: Central Processor
Family: <OUT OF SPEC>
Manufacturer: Intel
ID: A7 06 02 00 FF FB EB BF
Version: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
Voltage: 1.0 V
External Clock: 100 MHz
Max Speed: 3800 MHz
Current Speed: 3300 MHz
Status: Populated, Enabled
Upgrade: Other
L1 Cache Handle: 0x0005
L2 Cache Handle: 0x0006
L3 Cache Handle: 0x0007
Serial Number: To Be Filled By O.E.M.
Asset Tag: To Be Filled By O.E.M.
Part Number: To Be Filled By O.E.M.
Core Count: 4
Core Enabled: 1
Characteristics:
64-bit capable
Until today I thought I had a single processor with 4 independent cores. I also thought that within each core can be used different threads.
