[lit] add LIT_MAX_WORKERS env variable (#76205)

makslevental · web-flow · commit 366923810ef1 · 2023-12-22T11:05:46.000-06:00
diff --git 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",

Original file line number	Diff line number	Diff line change
`@@ -36,7 +36,7 @@ def parse_args():`
`36`	`36`	`metavar="N",`
`37`	`37`	`help="Number of workers used for testing",`
`38`	`38`	`type=_positive_int,`
`39`		`- default=lit.util.usable_core_count(),`
	`39`	`+ default=os.getenv("LIT_MAX_WORKERS", lit.util.usable_core_count()),`
`40`	`40`	`)`
`41`	`41`	`parser.add_argument(`
`42`	`42`	`"--config-prefix",`