[llvm] 3669238 - [lit] add `LIT_MAX_WORKERS` env variable (#76205)

[via llvm-commits]

Author: Maksim Levental
Date: 2023-12-22T11:05:46-06:00
New Revision: 366923810ef11b2df1c4cffa29b51c304c72d332

URL: https://github.com/llvm/llvm-project/commit/366923810ef11b2df1c4cffa29b51c304c72d332
DIFF: https://github.com/llvm/llvm-project/commit/366923810ef11b2df1c4cffa29b51c304c72d332.diff

LOG: [lit] add `LIT_MAX_WORKERS` env variable (#76205)

Added: 
    

Modified: 
    llvm/utils/lit/lit/cl_arguments.py

Removed: 
    


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diff  --git a/llvm/utils/lit/lit/cl_arguments.py b/llvm/utils/lit/lit/cl_arguments.py
index ba3706659550b6..b9122d07afd8a1 100644
--- a/llvm/utils/lit/lit/cl_arguments.py
+++ b/llvm/utils/lit/lit/cl_arguments.py
@@ -36,7 +36,7 @@ def parse_args():
         metavar="N",
         help="Number of workers used for testing",
         type=_positive_int,
-        default=lit.util.usable_core_count(),
+        default=os.getenv("LIT_MAX_WORKERS", lit.util.usable_core_count()),
     )
     parser.add_argument(
         "--config-prefix",