Tuning Option

• hadware
• Storage
• networking
  • TCP sliding windows
• OS
  • Kernel parameters and /proc
    • General kernel tuning parameters

Sysctl variable

Default 2.6

Suggested

kernel.pid_max		32768		32768*
vm.lowmem_reserve_ratio		256 32
vm.overcommit_ratio		50
vm.swapiness		60

• GPFS Configuration