Tom-Newton commented on issue #40035:
URL: https://github.com/apache/arrow/issues/40035#issuecomment-1939674490
I can measure a clear performance advantage from tuning these parameters a
bit.
Defaults: median=9.0 seconds P95=12.5 seconds
Setting
```
initial_chunk_size=8*1024*1024,
chunk_size=8*1024 * 1024,
concurrency=5
```
median=5.6 seconds P95=6.7 seconds
Personally I think this is enough to motivate exposing these config options.
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