$ cat /proc/cpuinfo | grep processor |wc -l
24
From the output, we see we have total 24 processors. In linux every information is kept on a file. All processors information are kept in /proc/cpuinfo file. Processor ID 0 (zero) indicates it is 1st processor. We can get each processor id by following command.
$ cat /proc/cpuinfo | grep processor processor : 0 processor : 1 processor : 2 processor : 3 processor : 4 processor : 5 processor : 6 processor : 7 processor : 8 processor : 9 processor : 10 processor : 11 processor : 12 processor : 13 processor : 14 processor : 15 processor : 16 processor : 17 processor : 18 processor : 19 processor : 20 processor : 21 processor : 22 processor : 23
You can get details of a process by simply doing view information of /proc/cpuinfo file. From the cat output the 24th process information is following.
processor : 23 vendor_id : GenuineIntel cpu family : 6 model : 29 model name : Intel(R) Xeon(R) CPU X7460 @ 2.66GHz stepping : 1 cpu MHz : 2666.768 cache size : 16384 KB physical id : 3 siblings : 6 core id : 5 cpu cores : 6 fpu : yes fpu_exception : yes cpuid level : 11 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 syscall lm constant_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm bogomips : 5333.61 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management:
