diff --git a/project/Build.scala b/project/Build.scala
index b0bad8f4ca20..3ecb9ac42de3 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -6,9 +6,7 @@ import scala.reflect.io.Path
 
 object DottyBuild extends Build {
 
-  // Currently, this cannot be increased without hitting the maximum amount of memory
-  // available on the Jenkins VMs
-  val travisMemLimit = List("-Xmx1100m")
+  val travisMemLimit = List("-Xmx1500m")
 
   val JENKINS_BUILD = "dotty.jenkins.build"
 
diff --git a/test/dotty/partest/DPConsoleRunner.scala b/test/dotty/partest/DPConsoleRunner.scala
index fa6256398d47..a84bd31e26be 100644
--- a/test/dotty/partest/DPConsoleRunner.scala
+++ b/test/dotty/partest/DPConsoleRunner.scala
@@ -68,8 +68,15 @@ class DPSuiteRunner(testSourcePath: String, // relative path, like "files", or "
   scalacExtraArgs: Seq[String] = Seq.empty)
 extends SuiteRunner(testSourcePath, fileManager, updateCheck, failed, javaCmdPath, javacCmdPath, scalacExtraArgs) {
 
+  val isJenkins = sys.props.isDefinedAt("dotty.jenkins.build")
+  val numCores = Runtime.getRuntime.availableProcessors
+
   if (!DPConfig.runTestsInParallel)
     sys.props("partest.threads") = "1"
+  else if (isJenkins)
+    sys.props("partest.threads") = (numCores / 2).toString
+  else
+    sys.props("partest.threads") = numCores.toString
 
   sys.props("partest.root") = "."