[lit] Do not create semaphores when we do not need them
Parallelism groups and semaphores are only required for parallel
execution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375055 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/lit/lit/run.py b/utils/lit/lit/run.py
index d08da9b..6d1cc7c 100644
--- a/utils/lit/lit/run.py
+++ b/utils/lit/lit/run.py
@@ -19,11 +19,6 @@
def __init__(self, lit_config, tests):
self.lit_config = lit_config
self.tests = tests
- # Set up semaphores to limit parallelism of certain classes of tests.
- self.parallelism_semaphores = {
- k : NopSemaphore() if v is None else
- multiprocessing.BoundedSemaphore(v)
- for k, v in lit_config.parallelism_groups.items()}
def execute_tests(self, progress_callback, workers, max_time):
"""
@@ -76,14 +71,18 @@
if max_time:
deadline = time.time() + max_time
+ semaphores = {
+ k: NopSemaphore() if v is None else
+ multiprocessing.BoundedSemaphore(v) for k, v in
+ self.lit_config.parallelism_groups.items()}
+
# Start a process pool. Copy over the data shared between all test runs.
# FIXME: Find a way to capture the worker process stderr. If the user
# interrupts the workers before we make it into our task callback, they
# will each raise a KeyboardInterrupt exception and print to stderr at
# the same time.
pool = multiprocessing.Pool(workers, lit.worker.initializer,
- (self.lit_config,
- self.parallelism_semaphores))
+ (self.lit_config, semaphores))
# Install a console-control signal handler on Windows.
if lit.util.win32api is not None:
