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Ethan Atkins
fdce1eb7e6
It is not uncommon in large projects for the jvm to silently be running frequent full gcs in the background. This can slow progress to a crawl. Usually the fix is to bump the -Xmx parameter but if the users do not realize that their tasks are slow because of gc thrashing, they may not think to do that. This PR adds a monitor that hooks into the jvm's event notification system to keep track of how much time is spent in GC. If the ratio of the amount of time in gc to the total elapsed time exceeds some threshold, we emit a warning. I was motivated to do this because publishLocal can take forever in the zinc project because a 1G heap isn't big enough.
sbt
sbt is a build tool for Scala, Java, and more.
For general documentation, see https://www.scala-sbt.org/.
sbt 1.x
This is the 1.x series of sbt. The source code of sbt is split across several GitHub repositories, including this one.
- sbt/io hosts
sbt.iomodule. - sbt/librarymanagement hosts
sbt.librarymanagementmodule that wraps Ivy. - sbt/zinc hosts Zinc, an incremental compiler for Scala.
- sbt/sbt, this repository hosts modules that implements the build tool.
Other links
- Setup: Describes getting started with the latest binary release.
- FAQ: Explains how to get help and more.
- sbt/sbt-zero-seven: hosts sbt 0.7.7 and earlier versions
Issues and Pull Requests
Please read CONTRIBUTING carefully before opening a GitHub Issue.
The short version: try searching or asking on StackOverflow.
license
See LICENSE.