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Is this expected that calling `myRawSource.buffered().buffered().buffered()` creates a new RealSource each time? Shouldn't be there an extension on `Source.buffered() = this`?

There were arguments agains an optimization returning `this` for `Source.buffered()` (<https://github.com/Kotlin/kotlinx-io/pull/136#issuecomment-1604125718>).

As per <https://github.com/Kotlin/kotlinx-io/issues/146>, a separate set of extensions could be added to achieve _optimized_ behavior. However, it seems like #146 didn't attract a lot of interest from anyone, so nothing was done so far.

Thanks for the links, so it is „okay“ to create multiple buffers and I can ignore the small overhead. I am creating a server framework that should be run „inside“ an Apache Camel environment as well as Ktor, and Camel supports an Input/Output Stream vs Ktor provides an Source/Sink so for convince the generated code will contain buffered

If the overhead will not be neglectible, you can drop a few words in the issue I referred before, and we'll figure out what should be done: either add new optimized extensions, or change behavior of existing ones.