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fromIteratorBuffered #1307

merged 5 commits into from Nov 6, 2020


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@Avasil Avasil commented Nov 6, 2020

Fixes #1275

I've run a simple benchmark against fromIterator + bufferSliding and there seems to be a decent gain (around 35%, perhaps more than 3.2.2 because we fixed perf regression on Scala 2.13) but I'm not sure if it is enough to make a difference for your use case @deusaquilus

If it's not, I'm happy to try and help to solve the issue

[info] Benchmark                                               (chunkCount)  (chunkSize)   Mode  Cnt    Score   Error  Units
[info] ObservableIteratorBenchmark.bufferTumbling                      1000         1000  thrpt   40   95.434 ± 0.998  ops/s
[info] ObservableIteratorBenchmark.fromIteratorBufferedUnsafe          1000         1000  thrpt   40  130.350 ± 2.840  ops/s

@Avasil Avasil merged commit a43650a into monix:series/3.x Nov 6, 2020
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@Avasil Actually it might be even more then this number in my use-case because the JDBC ResultSet fetches results in a chunked way itself. That means that by synchronizing Monix Chunks and JDBC chunks, we might be freeing a whole lot of IO cycles downstream. Will let you know how it turns out.

Btw what release can I hope to see this in?

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Avasil commented Nov 8, 2020

@deusaquilus It's already released in 3.3.0 :) Will be waiting for your report

@Avasil Avasil deleted the fromIteratorChunkedUnsafe branch November 14, 2020 15:48
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Add Observable.fromIteratorChunkedUnsafe
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