From d4837b41c5139cfcb946fee8f4fb0b644caf6a38 Mon Sep 17 00:00:00 2001
From: Jeremiah Lowin <153965+jlowin@users.noreply.github.com>
Date: Fri, 17 Oct 2025 11:28:42 -0400
Subject: [PATCH] Disable parallel test execution on Windows (#2128)

---
 .github/workflows/run-tests.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 034394573..2edb6ef60 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -48,7 +48,7 @@ jobs:
         run: uv sync --upgrade
 
       - name: Run tests (excluding integration and client_process)
-        run: uv run pytest --inline-snapshot=disable tests -m "not integration and not client_process" --numprocesses auto --maxprocesses 4 --dist worksteal
+        run: uv run pytest --inline-snapshot=disable tests -m "not integration and not client_process" ${{ matrix.os == 'windows-latest' && '' || '--numprocesses auto --maxprocesses 4 --dist worksteal' }}
 
       - name: Run client process tests separately
         run: uv run pytest --inline-snapshot=disable tests -m "client_process" -x