Sysctl - Control Kernel State Info | Online Free DevTools by Hexmos

Control kernel state information with Sysctl. Access and modify kernel parameters on macOS for system tuning and debugging. Free online tool, no registration required.

sysctl

Access kernel state information. More information: https://keith.github.io/xcode-man-pages/sysctl.8.html.

  • Show all available variables and their values:

sysctl -a

  • Show Apple model identifier:

sysctl -n hw.model

  • Show CPU model:

sysctl -n machdep.cpu.brand_string

  • Show available CPU features (MMX, SSE, SSE2, SSE3, AES, etc):

sysctl -n machdep.cpu.features

  • Set a changeable kernel state variable:

sysctl -w {{section.tunable}}={{value}}