From 6003e67a41da59633da19f50c382ac721e855dc3 Mon Sep 17 00:00:00 2001
From: "Igoshev, Iaroslav" <iaroslav.igoshev@intel.com>
Date: Tue, 6 Feb 2024 20:51:03 +0000
Subject: [PATCH] PERF-#6922: Set DaskThreadsPerWorker to 1

Signed-off-by: Igoshev, Iaroslav <iaroslav.igoshev@intel.com>
---
 modin/config/envvars.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modin/config/envvars.py b/modin/config/envvars.py
index 85bcf61e79d..e892e34f2d1 100644
--- a/modin/config/envvars.py
+++ b/modin/config/envvars.py
@@ -827,7 +827,7 @@ class DaskThreadsPerWorker(EnvironmentVariable, type=int):
     """Number of threads per Dask worker."""
 
     varname = "MODIN_DASK_THREADS_PER_WORKER"
-    default = None
+    default = 1
 
 
 def _check_vars() -> None: