canceled_flag = LockedValue(0)
consumer = ThreadResultsConsumer(display)
+ # Because some tests use threads internally, and at least on Linux each
+ # of these threads counts toward the current process limit, try to
+ # raise the (soft) process limit so that tests don't fail due to
+ # resource exhaustion.
+ try:
+ cpus = lit.util.detectCPUs()
+ desired_limit = jobs * cpus * 2 # the 2 is a safety factor
+
+ # Import the resource module here inside this try block because it
+ # will likely fail on Windows.
+ import resource
+
+ max_procs_soft, max_procs_hard = resource.getrlimit(resource.RLIMIT_NPROC)
+ desired_limit = min(desired_limit, max_procs_hard)
+
+ if max_procs_soft < desired_limit:
+ resource.setrlimit(resource.RLIMIT_NPROC, (desired_limit, max_procs_hard))
+ self.lit_config.note('raised the process limit from %d to %d' % \
+ (max_procs_soft, desired_limit))
+ except:
+ pass
+
# Create the test provider.
provider = TestProvider(self.tests, jobs, queue_impl, canceled_flag)