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Oversubscribe test forks in CI to cut wall clock time #1217

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timtebeek wants to merge 1 commit into from
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Oversubscribe test forks in CI to cut wall clock time #1217

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8 changes: 7 additions & 1 deletion build.gradle.kts
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Expand Up @@ -115,7 +115,13 @@ tasks.withType(Javadoc::class.java) {
}

tasks.test {
maxHeapSize = "2g" // Set max heap size to 2GB or adjust as necessary
maxHeapSize = "2g"
if (System.getenv("CI") != null) {
// 47 of the 267 test classes resolve Maven poms over the network, so forks idle on I/O;
// oversubscribing the runner's cores packs the remaining work more evenly across them.
maxParallelForks = Runtime.getRuntime().availableProcessors() * 3 / 2
maxHeapSize = "1500m"
}
}

tasks.withType<JavaCompile> {
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