Linux-Ubuntu | System info

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1. System info
2. How to disable/enable a CPU core?

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1. System info
   • CPU info:
     $ cat /proc/cpuinfo $ cat /proc/cpuinfo | grep processor
     
   • OS info:
     $ cat /proc/version
     
   • Memory info:
     $ vmstat -s $ vmstat -s | grep memory
2. How to disable/enable a CPU core?
   • Available CPU cores:
     $ cat /proc/cpuinfo | grep processor $ ls -al /sys/devices/system/cpu/
     
   • To disable a CPU core:
     $ echo 0 | sudo tee /sys/devices/system/cpu/cpu1/online
     
   • To enable a CPU core:
     $ echo 1 | sudo tee /sys/devices/system/cpu/cpu1/online