display CPU information in linux

you can use this command for example to view all the details of your central processing unit CPU aka microchip you can get all the information such as vendor cache, so you can use this command to get information about the CPU found during booting.

dmesg | grep CPU

the ouput may look like something like this:

Initializing CPU#0
CPU 0 irqstacks, hard=c075f000 soft=c073f000
CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: L3 cache: 2048K
CPU: Physical Processor ID: 0
CPU: After all inits, caps: bfebf3ff 00000000 00000000 00000080 00004400 00000000 00000000
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Thermal monitoring enabled
CPU0: Intel(R) Xeon(TM) CPU 3.20GHz stepping 05
CPU 1 irqstacks, hard=c0760000 soft=c0740000
Initializing CPU#1
CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: L3 cache: 2048K
CPU: Physical Processor ID: 3
CPU: After all inits, caps: bfebf3ff 00000000 00000000 00000080 00004400 00000000 00000000
Intel machine check reporting enabled on CPU#1.
CPU1: Intel P4/Xeon Extended MCE MSRs (12) available
CPU1: Thermal monitoring enabled
CPU1: Intel(R) Xeon(TM) CPU 3.20GHz stepping 05
checking TSC synchronization across 2 CPUs: passed.
Brought up 2 CPUs
mtrr: your CPUs had inconsistent fixed MTRR settings
mtrr: probably your BIOS does not setup all CPUs.