feat: improve IWRR implementation

[poolifier.git] / docs / api.md

diff --git a/docs/api.md b/docs/api.md
index 3a62d7635c754ddabb9e9d0766f897ec7c4f78bc..cc486202bde58986be125d8cf2652f09185b0509 100644 (file)
--- a/docs/api.md
+++ b/docs/api.md
@@ -63,10 +63,10 @@ An object with these properties:
   - `WorkerChoiceStrategies.ROUND_ROBIN`: Submit tasks to worker in a round robin fashion
   - `WorkerChoiceStrategies.LEAST_USED`: Submit tasks to the worker with the minimum number of executed, executing and queued tasks
   - `WorkerChoiceStrategies.LEAST_BUSY`: Submit tasks to the worker with the minimum tasks total execution and wait time
-  - `WorkerChoiceStrategies.LEAST_ELU`: Submit tasks to the worker with the minimum event loop utilization (ELU) (experimental)
-  - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using a [weighted round robin scheduling algorithm](./../docs/worker-choice-strategies.md#weighted-round-robin) based on tasks execution time
-  - `WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using an [interleaved weighted round robin scheduling algorithm](./../docs/worker-choice-strategies.md#interleaved-weighted-round-robin) based on tasks execution time (experimental)
-  - `WorkerChoiceStrategies.FAIR_SHARE`: Submit tasks to worker by using a [fair share scheduling algorithm](./../docs/worker-choice-strategies.md#fair-share) based on tasks execution time (the default) or ELU active time
+  - `WorkerChoiceStrategies.LEAST_ELU`: Submit tasks to the worker with the minimum event loop utilization (ELU)
+  - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using a [weighted round robin scheduling algorithm](./worker-choice-strategies.md#weighted-round-robin) based on tasks execution time
+  - `WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using an [interleaved weighted round robin scheduling algorithm](./worker-choice-strategies.md#interleaved-weighted-round-robin) based on tasks execution time (experimental)
+  - `WorkerChoiceStrategies.FAIR_SHARE`: Submit tasks to worker by using a [fair share scheduling algorithm](./worker-choice-strategies.md#fair-share) based on tasks execution time (the default) or ELU active time
 
   `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN`, `WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN` and `WorkerChoiceStrategies.FAIR_SHARE` strategies are targeted to heavy and long tasks.  
   Default: `WorkerChoiceStrategies.ROUND_ROBIN`
@@ -74,13 +74,14 @@ An object with these properties:
 - `workerChoiceStrategyOptions` (optional) - The worker choice strategy options object to use in this pool.  
   Properties:
 
+  - `retries` (optional) - The number of retries to perform if no worker is eligible.
   - `measurement` (optional) - The measurement to use in worker choice strategies: `runTime`, `waitTime` or `elu`.
-  - `runTime` (optional) - Use the tasks [median](./../docs/worker-choice-strategies.md#median) runtime instead of the tasks average runtime in worker choice strategies.
-  - `waitTime` (optional) - Use the tasks [median](./../docs/worker-choice-strategies.md#median) wait time instead of the tasks average wait time in worker choice strategies.
-  - `elu` (optional) - Use the tasks [median](./../docs/worker-choice-strategies.md#median) ELU instead of the tasks average ELU in worker choice strategies.
+  - `runTime` (optional) - Use the tasks [simple moving median](./worker-choice-strategies.md#simple-moving-median) runtime instead of the tasks simple moving average runtime in worker choice strategies.
+  - `waitTime` (optional) - Use the tasks [simple moving median](./worker-choice-strategies.md#simple-moving-median) wait time instead of the tasks simple moving average wait time in worker choice strategies.
+  - `elu` (optional) - Use the tasks [simple moving median](./worker-choice-strategies.md#simple-moving-median) ELU instead of the tasks simple moving average ELU in worker choice strategies.
   - `weights` (optional) - The worker weights to use in weighted round robin worker choice strategies: `{ 0: 200, 1: 300, ..., n: 100 }`.
 
-  Default: `{ runTime: { median: false }, waitTime: { median: false }, elu: { median: false } }`
+  Default: `{ retries: 6, runTime: { median: false }, waitTime: { median: false }, elu: { median: false } }`
 
 - `restartWorkerOnError` (optional) - Restart worker on uncaught error in this pool.  
   Default: `true`
@@ -92,9 +93,10 @@ An object with these properties:
 - `tasksQueueOptions` (optional) - The worker tasks queue options object to use in this pool.  
   Properties:
 
-  - `concurrency` (optional) - The maximum number of tasks that can be executed concurrently on a worker.
+  - `size` (optional) - The maximum number of tasks that can be queued on a worker before flagging it as back pressured. It must be a positive integer.
+  - `concurrency` (optional) - The maximum number of tasks that can be executed concurrently on a worker. It must be a positive integer.
 
-  Default: `{ concurrency: 1 }`
+  Default: `{ size: (pool maximum size)^2, concurrency: 1 }`
 
 #### `ThreadPoolOptions extends PoolOptions`