* Least busy worker selection strategy.
*/
LEAST_BUSY: 'LEAST_BUSY',
+ /**
+ * Least ELU worker selection strategy.
+ *
+ * @experimental
+ */
+ LEAST_ELU: 'LEAST_ELU',
/**
* Fair share worker selection strategy.
*/
*/
export type WorkerChoiceStrategy = keyof typeof WorkerChoiceStrategies
+/**
+ * Enumeration of measurements.
+ */
+export const Measurements = Object.freeze({
+ runTime: 'runTime',
+ waitTime: 'waitTime',
+ elu: 'elu'
+} as const)
+
+/**
+ * Measurement.
+ */
+export type Measurement = keyof typeof Measurements
+
/**
* Measurement options.
*/
-interface MeasurementOptions {
+export interface MeasurementOptions {
/**
* Set measurement median.
*/
- median: boolean
+ readonly median: boolean
}
/**
* Worker choice strategy options.
*/
export interface WorkerChoiceStrategyOptions {
+ /**
+ * Measurement to use for worker choice strategy.
+ */
+ readonly measurement?: Measurement
/**
* Runtime options.
*
* @defaultValue \{ median: false \}
*/
- runTime?: MeasurementOptions
+ readonly runTime?: MeasurementOptions
/**
* Wait time options.
*
* @defaultValue \{ median: false \}
*/
- waitTime?: MeasurementOptions
+ readonly waitTime?: MeasurementOptions
+ /**
+ * Event loop utilization options.
+ *
+ * @defaultValue \{ median: false \}
+ */
+ readonly elu?: MeasurementOptions
/**
* Worker weights to use for weighted round robin worker selection strategy.
* Weight is the tasks maximum average or median runtime in milliseconds.
*
* @defaultValue Computed worker weights automatically given the CPU performance.
*/
- weights?: Record<number, number>
+ readonly weights?: Record<number, number>
}
/**
*
* @internal
*/
-interface MeasurementStatisticsRequirements {
+export interface MeasurementStatisticsRequirements {
/**
- * Require measurement aggregate.
+ * Requires measurement aggregate.
*/
aggregate: boolean
/**
- * Require measurement average.
+ * Requires measurement average.
*/
average: boolean
/**
- * Require measurement median.
+ * Requires measurement median.
*/
median: boolean
}
/**
* Tasks runtime requirements.
*/
- runTime: MeasurementStatisticsRequirements
+ readonly runTime: MeasurementStatisticsRequirements
/**
* Tasks wait time requirements.
*/
- waitTime: MeasurementStatisticsRequirements
+ readonly waitTime: MeasurementStatisticsRequirements
+ /**
+ * Tasks event loop utilization requirements.
+ */
+ readonly elu: MeasurementStatisticsRequirements
+}
+
+/**
+ * Strategy policy.
+ *
+ * @internal
+ */
+export interface StrategyPolicy {
/**
- * Event loop utilization.
+ * Expects direct usage of dynamic worker.
*/
- elu: boolean
+ readonly useDynamicWorker: boolean
}
/**
* Worker choice strategy interface.
*/
export interface IWorkerChoiceStrategy {
+ /**
+ * Strategy policy.
+ */
+ readonly strategyPolicy: StrategyPolicy
/**
* Tasks statistics requirements.
*/