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Merge pull request #336 from sched-ext/rustland-max-time-slice-limit

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scx_rustland: never use a time slice that exceeds the default value
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Andrea Righi 2024-06-06 18:34:10 +02:00 committed by GitHub
commit def1ad2947
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1 changed files with 2 additions and 1 deletions
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scheds/rust/scx_rustland/src/main.rs
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@ -534,7 +534,8 @@ impl<'a> Scheduler<'a> {
// Moreover, ensure that the time slice is never less than 0.25 ms to prevent
// excessive penalty from assigning time slices that are too short and reduce
// context switch overhead.
let slice_ns = (task.vruntime - self.min_vruntime).max(NSEC_PER_MSEC / 4);
let slice_ns =
(task.vruntime - self.min_vruntime).clamp(NSEC_PER_MSEC / 4, self.slice_ns);
// Update global minimum vruntime.
self.min_vruntime = task.vruntime;