1
0
Fork 0
mirror of https://github.com/denoland/deno.git synced 2024-12-24 16:19:12 -05:00
denoland-deno/tools/benchmark.py
Bartek Iwańczuk a913b7a1ba
BREAKING: remove CLI 'deno script.ts' hack (#5026)
This PR removes the hack in CLI that allows to run scripts with shorthand: deno script.ts.

Removing this functionality because it hacks around short-comings of clap our CLI parser. We agree that this shorthand syntax is desirable, but it needs to be rethinked and reimplemented. For 1.0 we should go with conservative approach that is correct.
2020-05-04 13:03:30 +02:00

268 lines
8.8 KiB
Python
Executable file

#!/usr/bin/env python
# Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
# Performs benchmark and append data to //website/data.json.
# If //website/data.json doesn't exist, this script tries to import it from
# gh-pages branch.
# To view the results locally run ./tools/http_server.py and visit
# http://localhost:4545/website
import os
import sys
import json
import time
import tempfile
import subprocess
from util import build_path, executable_suffix, root_path, run, run_output
import third_party
from http_benchmark import http_benchmark
import throughput_benchmark
import http_server
# The list of the tuples of the benchmark name and arguments
exec_time_benchmarks = [
("hello", ["run", "cli/tests/002_hello.ts"]),
("relative_import", ["run", "cli/tests/003_relative_import.ts"]),
("error_001", ["run", "cli/tests/error_001.ts"]),
("cold_hello", ["run", "--reload", "cli/tests/002_hello.ts"]),
("cold_relative_import",
["run", "--reload", "cli/tests/003_relative_import.ts"]),
("workers_startup", ["run", "cli/tests/workers_startup_bench.ts"]),
("workers_round_robin", ["run", "cli/tests/workers_round_robin_bench.ts"]),
("text_decoder", ["run", "cli/tests/text_decoder_perf.js"]),
("text_encoder", ["run", "cli/tests/text_encoder_perf.js"]),
]
def read_json(filename):
with open(filename) as json_file:
return json.load(json_file)
def write_json(filename, data):
with open(filename, 'w') as outfile:
json.dump(data, outfile)
def get_binary_sizes(build_dir):
sizes = {}
mtimes = {}
# The deno executable should be located at the root of the build tree.
deno_exe = os.path.join(build_dir, "deno" + executable_suffix)
sizes["deno"] = os.path.getsize(deno_exe)
# Because cargo's OUT_DIR is not predictable, search the build tree for
# snapshot related files.
for parent_dir, _, file_names in os.walk(build_dir):
for file_name in file_names:
if not file_name in [
"CLI_SNAPSHOT.bin",
"CLI_SNAPSHOT.js",
"CLI_SNAPSHOT.js.map",
"COMPILER_SNAPSHOT.bin",
"COMPILER_SNAPSHOT.js",
"COMPILER_SNAPSHOT.js.map",
]:
continue
file_path = os.path.join(parent_dir, file_name)
file_mtime = os.path.getmtime(file_path)
# If multiple copies of a file are found, use the most recent one.
if file_name in mtimes and mtimes[file_name] > file_mtime:
continue
mtimes[file_name] = file_mtime
sizes[file_name] = os.path.getsize(file_path)
return sizes
def get_strace_summary_text(test_args):
f = tempfile.NamedTemporaryFile()
cmd = ["strace", "-c", "-f", "-o", f.name] + test_args
try:
subprocess.check_output(cmd)
except subprocess.CalledProcessError:
pass
return f.read()
def strace_parse(summary_text):
summary = {}
# clear empty lines
lines = list(filter(lambda x: x and x != "\n", summary_text.split("\n")))
# Filter out non-relevant lines. See the error log at
# https://github.com/denoland/deno/pull/3715/checks?check_run_id=397365887
# This is checked in tools/testdata/strace_summary2.out
lines = [x for x in lines if x.find("detached ...") == -1]
if len(lines) < 4:
return {} # malformed summary
lines, total_line = lines[2:-2], lines[-1]
# data to dict for each line
for line in lines:
syscall_fields = line.split()
syscall_name = syscall_fields[-1]
syscall_dict = {}
if 5 <= len(syscall_fields) <= 6:
syscall_dict = {
"% time": float(syscall_fields[0]),
"seconds": float(syscall_fields[1]),
"usecs/call": int(syscall_fields[2]),
"calls": int(syscall_fields[3])
}
syscall_dict["errors"] = 0 if len(syscall_fields) < 6 else int(
syscall_fields[4])
summary[syscall_name] = syscall_dict
# record overall (total) data
total_fields = total_line.split()
summary["total"] = {
"% time": float(total_fields[0]),
"seconds": float(total_fields[1]),
"calls": int(total_fields[2]),
"errors": int(total_fields[3])
}
return summary
def get_strace_summary(test_args):
s = get_strace_summary_text(test_args)
try:
return strace_parse(s)
except ValueError:
print "error parsing strace"
print "----- <strace> -------"
print s
print "----- </strace> ------"
def run_throughput(deno_exe):
m = {}
m["100M_tcp"] = throughput_benchmark.tcp(deno_exe, 100)
m["100M_cat"] = throughput_benchmark.cat(deno_exe, 100)
m["10M_tcp"] = throughput_benchmark.tcp(deno_exe, 10)
m["10M_cat"] = throughput_benchmark.cat(deno_exe, 10)
return m
# "thread_count" and "syscall_count" are both calculated here.
def run_strace_benchmarks(deno_exe, new_data):
thread_count = {}
syscall_count = {}
for (name, args) in exec_time_benchmarks:
s = get_strace_summary([deno_exe] + args)
thread_count[name] = s["clone"]["calls"] + 1
syscall_count[name] = s["total"]["calls"]
new_data["thread_count"] = thread_count
new_data["syscall_count"] = syscall_count
# Takes the output from "/usr/bin/time -v" as input and extracts the 'maximum
# resident set size' and returns it in bytes.
def find_max_mem_in_bytes(time_v_output):
for line in time_v_output.split('\n'):
if 'maximum resident set size (kbytes)' in line.lower():
_, value = line.split(': ')
return int(value) * 1024
def run_max_mem_benchmark(deno_exe):
results = {}
for (name, args) in exec_time_benchmarks:
cmd = ["/usr/bin/time", "-v", deno_exe] + args
try:
out = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError:
pass
mem = find_max_mem_in_bytes(out)
results[name] = mem
return results
def run_exec_time(deno_exe, build_dir):
hyperfine_exe = third_party.get_prebuilt_tool_path("hyperfine")
benchmark_file = os.path.join(build_dir, "hyperfine_results.json")
run([
hyperfine_exe, "--ignore-failure", "--export-json", benchmark_file,
"--warmup", "3"
] + [
deno_exe + " " + " ".join(args) for [_, args] in exec_time_benchmarks
])
hyperfine_results = read_json(benchmark_file)
results = {}
for [[name, _], data] in zip(exec_time_benchmarks,
hyperfine_results["results"]):
results[name] = {
"mean": data["mean"],
"stddev": data["stddev"],
"user": data["user"],
"system": data["system"],
"min": data["min"],
"max": data["max"]
}
return results
def run_http(build_dir, new_data):
stats = http_benchmark(build_dir)
new_data["req_per_sec"] = {k: v["req_per_sec"] for k, v in stats.items()}
new_data["max_latency"] = {k: v["max_latency"] for k, v in stats.items()}
def bundle_benchmark(deno_exe):
bundles = {
"file_server": "./std/http/file_server.ts",
"gist": "./std/examples/gist.ts",
}
sizes = {}
for name, url in bundles.items():
# bundle
path = name + ".bundle.js"
run([deno_exe, "bundle", "--unstable", url, path])
# get size of bundle
assert os.path.exists(path)
sizes[name] = os.path.getsize(path)
# remove bundle
os.remove(path)
return sizes
def main():
build_dir = build_path()
sha1 = run_output(["git", "rev-parse", "HEAD"],
exit_on_fail=True).out.strip()
http_server.spawn()
deno_exe = os.path.join(build_dir, "deno")
os.chdir(root_path)
new_data = {
"created_at": time.strftime("%Y-%m-%dT%H:%M:%SZ"),
"sha1": sha1,
}
# TODO(ry) The "benchmark" benchmark should actually be called "exec_time".
# When this is changed, the historical data in gh-pages branch needs to be
# changed too.
new_data["benchmark"] = run_exec_time(deno_exe, build_dir)
new_data["binary_size"] = get_binary_sizes(build_dir)
new_data["bundle_size"] = bundle_benchmark(deno_exe)
# Cannot run throughput benchmark on windows because they don't have nc or
# pipe.
if os.name != 'nt':
new_data["throughput"] = run_throughput(deno_exe)
run_http(build_dir, new_data)
if "linux" in sys.platform:
run_strace_benchmarks(deno_exe, new_data)
new_data["max_memory"] = run_max_mem_benchmark(deno_exe)
print "===== <BENCHMARK RESULTS>"
print json.dumps(new_data, indent=2)
print "===== </BENCHMARK RESULTS>"
write_json(os.path.join(build_dir, "bench.json"), new_data)
if __name__ == '__main__':
main()