X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fselection-strategies-types.ts;h=ac2ee6c3ca6b97f96c0e16a8ccf04e9557246090;hb=2c039e4373e86714cdf27e77440b12ee8eb2e4db;hp=29f1ca81dcb29ce3351fd6aa611e29039fd063cf;hpb=5a5fc090d6f7eb9248df1ba5c0ff4d001461b6d4;p=poolifier.git

diff --git a/src/pools/selection-strategies/selection-strategies-types.ts b/src/pools/selection-strategies/selection-strategies-types.ts
index 29f1ca81..ac2ee6c3 100644
--- a/src/pools/selection-strategies/selection-strategies-types.ts
+++ b/src/pools/selection-strategies/selection-strategies-types.ts
@@ -14,6 +14,12 @@ export const WorkerChoiceStrategies = Object.freeze({
    * Least busy worker selection strategy.
    */
   LEAST_BUSY: 'LEAST_BUSY',
+  /**
+   * Least ELU worker selection strategy.
+   *
+   * @experimental
+   */
+  LEAST_ELU: 'LEAST_ELU',
   /**
    * Fair share worker selection strategy.
    */
@@ -35,16 +41,56 @@ export const WorkerChoiceStrategies = Object.freeze({
  */
 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.
+ */
+export interface MeasurementOptions {
+  /**
+   * Set measurement median.
+   */
+  median: boolean
+}
+
 /**
  * Worker choice strategy options.
  */
 export interface WorkerChoiceStrategyOptions {
   /**
-   * Use tasks median runtime instead of average runtime.
+   * Measurement to use for worker choice strategy.
+   */
+  measurement?: Measurement
+  /**
+   * Runtime options.
+   *
+   * @defaultValue \{ median: false \}
+   */
+  runTime?: MeasurementOptions
+  /**
+   * Wait time options.
    *
-   * @defaultValue false
+   * @defaultValue \{ median: false \}
    */
-  medRunTime?: boolean
+  waitTime?: MeasurementOptions
+  /**
+   * Event loop utilization options.
+   *
+   * @defaultValue \{ median: false \}
+   */
+  elu?: MeasurementOptions
   /**
    * Worker weights to use for weighted round robin worker selection strategy.
    * Weight is the tasks maximum average or median runtime in milliseconds.
@@ -55,23 +101,55 @@ export interface WorkerChoiceStrategyOptions {
 }
 
 /**
- * Pool worker tasks usage statistics requirements.
+ * Measurement statistics requirements.
  *
  * @internal
  */
-export interface RequiredStatistics {
+export interface MeasurementStatisticsRequirements {
   /**
-   * Require tasks runtime.
+   * Require measurement aggregate.
    */
-  runTime: boolean
+  aggregate: boolean
   /**
-   * Require tasks average runtime.
+   * Require measurement average.
    */
-  avgRunTime: boolean
+  average: boolean
   /**
-   * Require tasks median runtime.
+   * Require measurement median.
    */
-  medRunTime: boolean
+  median: boolean
+}
+
+/**
+ * Pool worker node worker usage statistics requirements.
+ *
+ * @internal
+ */
+export interface TaskStatisticsRequirements {
+  /**
+   * Tasks runtime requirements.
+   */
+  runTime: MeasurementStatisticsRequirements
+  /**
+   * Tasks wait time requirements.
+   */
+  waitTime: MeasurementStatisticsRequirements
+  /**
+   * Tasks event loop utilization requirements.
+   */
+  elu: MeasurementStatisticsRequirements
+}
+
+/**
+ * Strategy policy.
+ *
+ * @internal
+ */
+export interface StrategyPolicy {
+  /**
+   * Expects direct usage of dynamic worker.
+   */
+  useDynamicWorker: boolean
 }
 
 /**
@@ -79,9 +157,13 @@ export interface RequiredStatistics {
  */
 export interface IWorkerChoiceStrategy {
   /**
-   * Required tasks usage statistics.
+   * Strategy policy.
+   */
+  readonly strategyPolicy: StrategyPolicy
+  /**
+   * Tasks statistics requirements.
    */
-  readonly requiredStatistics: RequiredStatistics
+  readonly taskStatisticsRequirements: TaskStatisticsRequirements
   /**
    * Resets strategy internals.
    *