Linux Kernel in a Nutshell

Name

migration_factor — Multiply or divide the migration costs.

Synopsis

migration_factor= percent

Modify the default migration costs by the specified percentage. This is a debugging option that can be used to proportionally increase or decrease the auto-detected migration costs for all entries of the migration matrix. For example, migration_factor=150 increases migration costs by 50%, so the scheduler will be less eager to migrate cache-hot tasks. migration_factor=80 decreases migration costs by 20%, thus making the scheduler will be more eager to migrate tasks.

Warning

Incorrect values can severely degrade scheduler performance, so this option should be used only for scheduler development, never for production environments.