Hey guys. I have been trying to setup a stream using throttle, but I am
seeing some weird behavior. In the following stream I am seeing a peak of
20k events per second in my publish stat.
Source.fromGraph(eventBusSource)
.via(filter)
.expand(Iterator.continually(_))
.via(StreamUtils.parallelize(10, modify))
// .throttle(eventsPerSecond, 1.second, 1, ThrottleMode.Shaping)
.via(StreamUtils.parallelize(20, publishFlow))
.takeWithin(duration)
.viaMat(KillSwitches.single)(Keep.right)
.toMat(Sink.fold(0)((acc, _) => acc + 1))(Keep.both)
However, when I uncomment the throttle stage and set events per second to
5k, the speed at which I publish drops to a few hundred per second. For
some reason, the throttle stage is dramatically slowing down my graph.
Am I just not understanding some fundamental concept about throttle?
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