scx_rustland_core: Ensure migration-disabled tasks are always enqueued #1897
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Letting the kernel directly dispatch migration-disabled tasks can lead to inefficiencies and unfairness, as these tasks bypass the user-space scheduler and override others. They also receive the default time slice, which can further amplify the imbalance. To address this, enable SCX_OPS_ENQ_MIGRATION_DISABLED so that migration-disabled tasks are enqueued and managed by the user-space scheduler like all other tasks. Signed-off-by: Andrea Righi <[email protected]>
hodgesds
approved these changes
May 16, 2025
multics69
approved these changes
May 17, 2025
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Letting the kernel directly dispatch migration-disabled tasks can lead to inefficiencies and unfairness, as these tasks bypass the user-space scheduler and override others. They also receive the default time slice, which can further amplify the imbalance.
To address this, enable SCX_OPS_ENQ_MIGRATION_DISABLED so that migration-disabled tasks are enqueued and managed by the user-space scheduler like all other tasks.