4.2. Tuning CPUs with Tuna

Tuna commands can target individual CPUs. To list the CPUs on your system, see the Monitoring tab in Tuna GUI or the /proc/cpuinfo file for detailed information.

To specify the list of CPUs to be affected by your command, use:

# tuna --cpus=cpu_list --run=COMMAND

Isolating a CPU causes all tasks currently running on that CPU to move to the next available CPU. To isolate a CPU, use:

# tuna --cpus=cpu_list --isolate

Including a CPU allows threads to run on the specified CPU. To include a CPU, use:

# tuna --cpus=cpu_list --include

The cpu_list argument is a list of comma-separated CPU numbers. For example, --cpus=0,2.