I’m working on a Play Framework project (2.4.11; Scala 2.11.9; sbt 0.13.16) with developers on all three main platforms. One thing we’ve noticed is that performance is consistently way worse under Windows than the other two (macOS, Linux).
The project has about 1k Java classes and 200 Scala classes; in a modern machine, a cycle of
clean;update;compile takes about 60s under Linux or macOS, but almost 400s under Windows. I’ve tried adding the source folder to Windows Defender exclusions, with a noticeable but not too big effect, bringing time down to ~370s.
I’m sure this is not expected. IO performance is infamously not great on Windows, but not to that extent. I’m wondering if anyone else experienced something like this, and if not, what could I do to find out what’s wrong.