如何在任何命令中指定 SBT 使用的线程数?

how to specify the number of threads used by SBT during any command?

Maven 有 -T <num_threads> 选项。 SBT 有类似的东西吗?如何让它在并行线程中下载我的依赖项而不是顺序执行?

SBT 1.0:

开始支持并行依赖下载

sbt 1 by default uses Gigahorse HTTP client (backed by Square OkHttp) to download artifacts in parallel.

这也在Download artifacts in parallel #590

中讨论

coursier SBT插件也支持并行下载依赖:

By default, downloads happen in a global fixed thread pool (with 6 threads, allowing for 6 parallel downloads), but you can supply your own thread pool to Cache.default.