From d69e9e566ce131016d53e4e96cdd360305e1efe6 Mon Sep 17 00:00:00 2001
From: Ben Barham <ben_barham@apple.com>
Date: Fri, 15 Aug 2025 17:42:03 -0700
Subject: [PATCH] Try bumping foundation tests to 8 jobs

---
 utils/build.ps1 | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/utils/build.ps1 b/utils/build.ps1
index ad774decea198..fc8d053ec7138 100644
--- a/utils/build.ps1
+++ b/utils/build.ps1
@@ -2850,8 +2850,10 @@ function Test-Foundation {
     -Src $SourceCache\swift-foundation `
     -Bin "$ScratchPath" `
     -Platform $BuildPlatform `
+    -Configuration $FoundationTestConfiguration `
     --multiroot-data-file "$SourceCache\swift\utils\build_swift\resources\SwiftPM-Unified-Build.xcworkspace" `
-    --test-product swift-foundationPackageTests
+    --test-product swift-foundationPackageTests `
+    -j 2 # Running too parallel causes a non-deterministic crash in CI only, see https://github.com/swiftlang/swift/issues/83606
 
   Invoke-IsolatingEnvVars {
     $env:DISPATCH_INCLUDE_PATH="$(Get-SwiftSDK $BuildPlatform.OS)/usr/include"
@@ -2865,8 +2867,10 @@ function Test-Foundation {
       -Src $SourceCache\swift-corelibs-foundation `
       -Bin "$ScratchPath" `
       -Platform $BuildPlatform `
+      -Configuration $FoundationTestConfiguration `
       --multiroot-data-file "$SourceCache\swift\utils\build_swift\resources\SwiftPM-Unified-Build.xcworkspace" `
-      --test-product swift-corelibs-foundationPackageTests
+      --test-product swift-corelibs-foundationPackageTests `
+      -j 2 # Running too parallel causes a non-deterministic crash in CI only, see https://github.com/swiftlang/swift/issues/83606
   }
 }