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19862 Token bucket reimplemented

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Endre Sándor Varga 2016-02-25 11:19:52 +01:00
parent 5545ff8fa7
commit d815ed1b5e
8 changed files with 436 additions and 78 deletions
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7
akka-stream/src/main/scala/akka/stream/javadsl/SubFlow.scala
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@ -1153,6 +1153,13 @@ class SubFlow[-In, +Out, +Mat](delegate: scaladsl.SubFlow[Out, Mat, scaladsl.Flo
* - [[akka.stream.ThrottleMode.Enforcing]] fails with exception when upstream is faster than throttle rate. Enforcing
* cannot emit elements that cost more than the maximumBurst
*
* It is recommended to use non-zero burst sizes as they improve both performance and throttling precision by allowing
* the implementation to avoid using the scheduler when input rates fall below the enforced limit and to reduce
* most of the inaccuracy caused by the scheduler resolution (which is in the range of milliseconds).
*
* Throttler always enforces the rate limit, but in certain cases (mostly due to limited scheduler resolution) it
* enforces a tighter bound than what was prescribed. This can be also mitigated by increasing the burst size.
*
* '''Emits when''' upstream emits an element and configured time per each element elapsed
*
* '''Backpressures when''' downstream backpressures