Hey,
having an operation that heavily utilizes CPU and RAM, nothing else (no
IO), but it is a main bottleneck, then it never pays off using
`stream.mapAsync` for it unless you batch operations by something like 10
000, so I started using stuff like :
.map(operation).withAttributes(
Attributes.asyncBoundary
.and(Attributes.inputBuffer(16,32))
.and(ActorAttributes.dispatcher("pinned-dispatcher"))
)
that is usually at least 3x more effective than `mapAsyncUnordered(4)`, but
it still utilizes only one CPU core.
Can you think of anything better than this or how to improve the above ^^ ?
*One way would be probably to split the flow into 4 substreams which would
lead to utilizing 4 cores, right ? So is akka.stream.scaladsl.Balance the
way to tackle this challange? *
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