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#!/usr/bin/env python3
# ===--- Benchmark_RuntimeLeaksRunner.in ---------------------------------===//
#
# This source file is part of the Swift.org open source project
#
# Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
# Licensed under Apache License v2.0 with Runtime Library Exception
#
# See https://swift.org/LICENSE.txt for license information
# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
#
# ===---------------------------------------------------------------------===//
import json
import os
import subprocess
import sys
sys.path.append("@PATH_TO_DRIVER_LIBRARY@")
import perf_test_driver # noqa (E402 module level import not at top of file)
# This is a hacked up XFAIL list. It should really be a json file, but it will
# work for now. Add in the exact name of the pass to XFAIL.
XFAIL_LIST = []
# Global Objective-C classes created by various frameworks. We do not care
# about these.
IGNORABLE_GLOBAL_OBJC_CLASSES = set(
[
"__NSPlaceholderDate",
"NSCache",
"__NSPlaceholderTimeZone",
"NSPlaceholderNumber",
"NSPlaceholderString",
"__NSPlaceholderArray",
"__NSPlaceholderDictionary",
"_NSPlaceholderData",
"_NSJSONReader",
]
)
class LeaksRunnerResult(perf_test_driver.Result):
def __init__(self, name, count=None):
# True = 1, False = 0.
#
# TODO: Why are we using booleans to communicate status here?
status = count is None or count > 0
perf_test_driver.Result.__init__(self, name, status, "", XFAIL_LIST)
self.count = count
def get_count(self):
if self.count is not None:
return str(self.count)
return "N/A"
def print_data(self, max_test_len):
fmt = "{:<%d}{:<10}{:}" % (max_test_len + 5)
print(fmt.format(self.get_name(), self.get_result(), self.get_count()))
class LeaksRunnerBenchmarkDriver(perf_test_driver.BenchmarkDriver):
def __init__(self, binary, xfail_list, num_samples, num_iters, verbose):
perf_test_driver.BenchmarkDriver.__init__(
self, binary, xfail_list, enable_parallel=True
)
self.num_samples = num_samples
self.num_iters = num_iters
self.verbose = verbose
def print_data_header(self, max_test_len):
fmt = "{:<%d}{:<10}{:}" % (max_test_len + 5)
print(fmt.format("Name", "Result", "RC Delta"))
# Propagate any data from this class that is needed for individual
# tests. The reason this is needed is to avoid issues with attempting to
# access a value in a different process.
def prepare_input(self, name):
return {"num_samples": self.num_samples, "num_iters": self.num_iters}
def run_test_inner(self, data, num_iters):
p = subprocess.Popen(
[
data["path"],
"--num-samples={}".format(data["num_samples"]),
"--num-iters={}".format(num_iters),
data["test_name"],
],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True,
)
error_out = p.communicate()[1].split("\n")
result = p.returncode
if result is None:
raise RuntimeError("Expected one line of output")
if result != 0:
raise RuntimeError("Process segfaulted")
return error_out
def run_test(self, data, num_iters):
try:
args = [data, num_iters]
result = perf_test_driver.run_with_timeout(self.run_test_inner, args)
except Exception as e:
sys.stderr.write(
"Child Process Failed! (%s,%s). Error: %s\n"
% (data["path"], data["test_name"], e)
)
sys.stderr.flush()
return None
try:
# We grab the second line since swift globals get lazily created in
# the first iteration.
d = json.loads(result[1])
d["objc_objects"] = [
x for x in d["objc_objects"] if x not in IGNORABLE_GLOBAL_OBJC_CLASSES
]
d["objc_count"] = len(d["objc_objects"])
# If we are asked to emit verbose output, do so now.
if self.verbose:
tmp = (data["path"], data["test_name"], d)
sys.stderr.write(
"VERBOSE (%s,%s): %s" % tmp)
sys.stderr.flush()
total_count = d["objc_count"] + d["swift_count"]
return total_count
except Exception:
tmp = (data["path"], data["test_name"])
sys.stderr.write("Failed parse output! (%s,%s)\n" % tmp)
sys.stderr.flush()
return None
def process_input(self, data):
test_name = "({},{})".format(data["opt"], data["test_name"])
print("Running {}...".format(test_name))
sys.stdout.flush()
total_count1 = self.run_test(data, data["num_iters"])
if total_count1 is None:
return LeaksRunnerResult(test_name)
total_count2 = self.run_test(data, data["num_iters"] + 1)
if total_count2 is None:
return LeaksRunnerResult(test_name)
return LeaksRunnerResult(test_name, total_count2 - total_count1)
SWIFT_BIN_DIR = os.path.dirname(os.path.abspath(__file__))
def parse_args():
import argparse
parser = argparse.ArgumentParser()
parser.add_argument(
"-filter",
type=str,
default=None,
help="Filter out any test that does not match the given regex",
)
parser.add_argument("-num-samples", type=int, default=2)
parser.add_argument("-num-iters", type=int, default=2)
parser.add_argument("-v", "--verbose", action="store_true",
help="Upon failure, dump out raw result",
dest="verbose")
return parser.parse_args()
if __name__ == "__main__":
args = parse_args()
driver = LeaksRunnerBenchmarkDriver(
SWIFT_BIN_DIR, XFAIL_LIST, args.num_samples, args.num_iters,
args.verbose
)
if driver.run(args.filter):
sys.exit(0)
else:
sys.exit(-1)
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