Check CPU information on Linux, just like check memory by watching /proc/meminfo
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 cat /proc/cpuinfoprocessor : 0 vendor_id : GenuineIntel cpu family : 6 model : 61 model name : Intel Core Processor (Broadwell, IBRS) stepping : 2 microcode : 0x1 cpu MHz : 2199.996 cache size : 4096 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch ssbd ibrs ibpb tpr_shadow vnmi flexpriority ept vpid fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt spec_ctrl bogomips : 4399.99 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual
Count number of processing units
1 cat /proc/cpuinfo | grep processor | wc -l
To get actualy number of cores
1 cat /proc/cpuinfo | grep 'core id'
Note: The number of processors shown by /proc/cpuinfo might not be the actual number of cores on the processor. For example a processor with 2 cores and hyperthreading would be reported as a processor with 4 cores.