#! /usr/bin/env python import argparse import os import string import subprocess import time import traceback import hashlib script_version = 'v0.8.0 (2016-08-03)' default_repo_url = 'https://github.com/Cyan4973/zstd.git' working_dir_name = 'speedTest' working_path = os.getcwd() + '/' + working_dir_name # /path/to/zstd/tests/speedTest clone_path = working_path + '/' + 'zstd' # /path/to/zstd/tests/speedTest/zstd email_header = 'ZSTD_speedTest' pid = str(os.getpid()) verbose = False def hashfile(hasher, fname, blocksize=65536): with open(fname, "rb") as f: for chunk in iter(lambda: f.read(blocksize), b""): hasher.update(chunk) return hasher.hexdigest() def log(text): print(time.strftime("%Y/%m/%d %H:%M:%S") + ' - ' + text) def execute(command, print_command=True, print_output=False, print_error=True, param_shell=True): if print_command: log("> " + command) popen = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=param_shell, cwd=execute.cwd) stdout = popen.communicate()[0] stdout_lines = stdout.splitlines() if print_output: print('\n'.join(stdout_lines)) if popen.returncode is not None and popen.returncode != 0: if not print_output and print_error: print('\n'.join(stdout_lines)) raise RuntimeError('\n'.join(stdout_lines)) return stdout_lines execute.cwd = None def does_command_exist(command): try: execute(command, verbose, False, False) except Exception: return False return True def send_email(emails, topic, text, have_mutt, have_mail): logFileName = working_path + '/' + 'tmpEmailContent' with open(logFileName, "w") as myfile: myfile.writelines(text) myfile.close() if have_mutt: execute('mutt -s "' + topic + '" ' + emails + ' < ' + logFileName, verbose) elif have_mail: execute('mail -s "' + topic + '" ' + emails + ' < ' + logFileName, verbose) else: log("e-mail cannot be sent (mail or mutt not found)") def send_email_with_attachments(branch, commit, last_commit, args, text, results_files, logFileName, have_mutt, have_mail): with open(logFileName, "w") as myfile: myfile.writelines(text) myfile.close() email_topic = '[%s:%s] Warning for %s:%s last_commit=%s speed<%s ratio<%s' \ % (email_header, pid, branch, commit, last_commit, args.lowerLimit, args.ratioLimit) if have_mutt: execute('mutt -s "' + email_topic + '" ' + args.emails + ' -a ' + results_files + ' < ' + logFileName) elif have_mail: execute('mail -s "' + email_topic + '" ' + args.emails + ' < ' + logFileName) else: log("e-mail cannot be sent (mail or mutt not found)") def git_get_branches(): execute('git fetch -p', verbose) branches = execute('git branch -rl', verbose) output = [] for line in branches: if ("HEAD" not in line) and ("coverity_scan" not in line) and ("gh-pages" not in line): output.append(line.strip()) return output def git_get_changes(branch, commit, last_commit): fmt = '--format="%h: (%an) %s, %ar"' if last_commit is None: commits = execute('git log -n 10 %s %s' % (fmt, commit)) else: commits = execute('git --no-pager log %s %s..%s' % (fmt, last_commit, commit)) return str('Changes in %s since %s:\n' % (branch, last_commit)) + '\n'.join(commits) def get_last_results(resultsFileName): if not os.path.isfile(resultsFileName): return None, None, None, None commit = None csize = [] cspeed = [] dspeed = [] with open(resultsFileName, 'r') as f: for line in f: words = line.split() if len(words) == 2: # branch + commit commit = words[1] csize = [] cspeed = [] dspeed = [] if (len(words) == 8): # results csize.append(int(words[1])) cspeed.append(float(words[3])) dspeed.append(float(words[5])) return commit, csize, cspeed, dspeed def benchmark_and_compare(branch, commit, last_commit, args, executableName, md5sum, resultsFileName, testFilePath, fileName, last_csize, last_cspeed, last_dspeed): sleepTime = 30 while os.getloadavg()[0] > args.maxLoadAvg: log("WARNING: bench loadavg=%.2f is higher than %s, sleeping for %s seconds" % (os.getloadavg()[0], args.maxLoadAvg, sleepTime)) time.sleep(sleepTime) start_load = str(os.getloadavg()) result = execute('programs/%s -qi5b1e%s %s' % (executableName, args.lastCLevel, testFilePath), print_output=True) end_load = str(os.getloadavg()) linesExpected = args.lastCLevel + 1 if len(result) != linesExpected: raise RuntimeError("ERROR: number of result lines=%d is different that expected %d\n%s" % (len(result), linesExpected, '\n'.join(result))) with open(resultsFileName, "a") as myfile: myfile.write(branch + " " + commit + "\n") myfile.write('\n'.join(result) + '\n') myfile.close() if (last_cspeed == None): log("WARNING: No data for comparison for branch=%s file=%s " % (branch, fileName)) return "" commit, csize, cspeed, dspeed = get_last_results(resultsFileName) text = "" for i in range(0, min(len(cspeed), len(last_cspeed))): print("%s:%s -%d cSpeed=%6.2f cLast=%6.2f cDiff=%1.4f dSpeed=%6.2f dLast=%6.2f dDiff=%1.4f ratioDiff=%1.4f %s" % (branch, commit, i+1, cspeed[i], last_cspeed[i], cspeed[i]/last_cspeed[i], dspeed[i], last_dspeed[i], dspeed[i]/last_dspeed[i], float(last_csize[i])/csize[i], fileName)) if (cspeed[i]/last_cspeed[i] < args.lowerLimit): text += "WARNING: %s -%d cSpeed=%.2f cLast=%.2f cDiff=%.4f %s\n" % (executableName, i+1, cspeed[i], last_cspeed[i], cspeed[i]/last_cspeed[i], fileName) if (dspeed[i]/last_dspeed[i] < args.lowerLimit): text += "WARNING: %s -%d dSpeed=%.2f dLast=%.2f dDiff=%.4f %s\n" % (executableName, i+1, dspeed[i], last_dspeed[i], dspeed[i]/last_dspeed[i], fileName) if (float(last_csize[i])/csize[i] < args.ratioLimit): text += "WARNING: %s -%d cSize=%d last_cSize=%d diff=%.4f %s\n" % (executableName, i+1, csize[i], last_csize[i], float(last_csize[i])/csize[i], fileName) if text: text = args.message + ("\nmaxLoadAvg=%s load average at start=%s end=%s last_commit=%s md5=%s\n" % (args.maxLoadAvg, start_load, end_load, last_commit, md5sum)) + text return text def update_config_file(branch, commit): last_commit = None commitFileName = working_path + "/commit_" + branch.replace("/", "_") + ".txt" if os.path.isfile(commitFileName): last_commit = file(commitFileName, 'r').read() file(commitFileName, 'w').write(commit) return last_commit def double_check(branch, commit, args, executableName, md5sum, resultsFileName, filePath, fileName): last_commit, csize, cspeed, dspeed = get_last_results(resultsFileName) if not args.dry_run: text = benchmark_and_compare(branch, commit, last_commit, args, executableName, md5sum, resultsFileName, filePath, fileName, csize, cspeed, dspeed) if text: log("WARNING: redoing tests for branch %s: commit %s" % (branch, commit)) text = benchmark_and_compare(branch, commit, last_commit, args, executableName, md5sum, resultsFileName, filePath, fileName, csize, cspeed, dspeed) return text def test_commit(branch, commit, last_commit, args, testFilePaths, have_mutt, have_mail): local_branch = string.split(branch, '/')[1] version = local_branch.rpartition('-')[2] + '_' + commit if not args.dry_run: execute('make -C programs clean zstd CC=clang MOREFLAGS="-Werror -Wconversion -Wno-sign-conversion -DZSTD_GIT_COMMIT=%s" && ' % version + 'mv programs/zstd programs/zstd_clang && ' + 'make -C programs clean zstd MOREFLAGS="-DZSTD_GIT_COMMIT=%s" && ' % version + 'make -B -C programs zstd32 MOREFLAGS="-DZSTD_GIT_COMMIT=%s"' % version) md5_zstd = hashfile(hashlib.md5(), clone_path + '/programs/zstd') md5_zstd32 = hashfile(hashlib.md5(), clone_path + '/programs/zstd32') md5_zstd_clang = hashfile(hashlib.md5(), clone_path + '/programs/zstd_clang') print("md5(zstd)=%s\nmd5(zstd32)=%s\nmd5(zstd_clang)=%s" % (md5_zstd, md5_zstd32, md5_zstd_clang)) logFileName = working_path + "/log_" + branch.replace("/", "_") + ".txt" text_to_send = [] results_files = "" for filePath in testFilePaths: fileName = filePath.rpartition('/')[2] resultsFileName = working_path + "/results_" + branch.replace("/", "_") + "_" + fileName.replace(".", "_") + ".txt" text = double_check(branch, commit, args, 'zstd', md5_zstd, resultsFileName, filePath, fileName) if text: text_to_send.append(text) results_files += resultsFileName + " " resultsFileName = working_path + "/results32_" + branch.replace("/", "_") + "_" + fileName.replace(".", "_") + ".txt" text = double_check(branch, commit, args, 'zstd32', md5_zstd32, resultsFileName, filePath, fileName) if text: text_to_send.append(text) results_files += resultsFileName + " " resultsFileName = working_path + "/resultsClang_" + branch.replace("/", "_") + "_" + fileName.replace(".", "_") + ".txt" text = double_check(branch, commit, args, 'zstd_clang', md5_zstd_clang, resultsFileName, filePath, fileName) if text: text_to_send.append(text) results_files += resultsFileName + " " if text_to_send: send_email_with_attachments(branch, commit, last_commit, args, text_to_send, results_files, logFileName, have_mutt, have_mail) if __name__ == '__main__': parser = argparse.ArgumentParser() parser.add_argument('testFileNames', help='file names list for speed benchmark') parser.add_argument('emails', help='list of e-mail addresses to send warnings') parser.add_argument('--message', help='attach an additional message to e-mail', default="") parser.add_argument('--repoURL', help='changes default repository URL', default=default_repo_url) parser.add_argument('--lowerLimit', type=float, help='send email if speed is lower than given limit', default=0.98) parser.add_argument('--ratioLimit', type=float, help='send email if ratio is lower than given limit', default=0.999) parser.add_argument('--maxLoadAvg', type=float, help='maximum load average to start testing', default=0.75) parser.add_argument('--lastCLevel', type=int, help='last compression level for testing', default=5) parser.add_argument('--sleepTime', type=int, help='frequency of repository checking in seconds', default=300) parser.add_argument('--dry-run', dest='dry_run', action='store_true', help='not build', default=False) parser.add_argument('--verbose', action='store_true', help='more verbose logs', default=False) args = parser.parse_args() verbose = args.verbose # check if test files are accessible testFileNames = args.testFileNames.split() testFilePaths = [] for fileName in testFileNames: fileName = os.path.expanduser(fileName) if os.path.isfile(fileName): testFilePaths.append(os.path.abspath(fileName)) else: log("ERROR: File not found: " + fileName) exit(1) # check availability of e-mail senders have_mutt = does_command_exist("mutt -h") have_mail = does_command_exist("mail -V") if not have_mutt and not have_mail: log("ERROR: e-mail senders 'mail' or 'mutt' not found") exit(1) if verbose: print("PARAMETERS:\nrepoURL=%s" % args.repoURL) print("working_path=%s" % working_path) print("clone_path=%s" % clone_path) print("testFilePath(%s)=%s" % (len(testFilePaths), testFilePaths)) print("message=%s" % args.message) print("emails=%s" % args.emails) print("maxLoadAvg=%s" % args.maxLoadAvg) print("lowerLimit=%s" % args.lowerLimit) print("ratioLimit=%s" % args.ratioLimit) print("lastCLevel=%s" % args.lastCLevel) print("sleepTime=%s" % args.sleepTime) print("dry_run=%s" % args.dry_run) print("verbose=%s" % args.verbose) print("have_mutt=%s have_mail=%s" % (have_mutt, have_mail)) # clone ZSTD repo if needed if not os.path.isdir(working_path): os.mkdir(working_path) if not os.path.isdir(clone_path): execute.cwd = working_path execute('git clone ' + args.repoURL) if not os.path.isdir(clone_path): log("ERROR: ZSTD clone not found: " + clone_path) exit(1) execute.cwd = clone_path # check if speedTest.pid already exists pidfile = "./speedTest.pid" if os.path.isfile(pidfile): log("ERROR: %s already exists, exiting" % pidfile) exit(1) send_email(args.emails, '[%s:%s] test-zstd-speed.py %s has been started' % (email_header, pid, script_version), args.message, have_mutt, have_mail) file(pidfile, 'w').write(pid) while True: try: loadavg = os.getloadavg()[0] if (loadavg <= args.maxLoadAvg): branches = git_get_branches() for branch in branches: commit = execute('git show -s --format=%h ' + branch, verbose)[0] last_commit = update_config_file(branch, commit) if commit == last_commit: log("skipping branch %s: head %s already processed" % (branch, commit)) else: log("build branch %s: head %s is different from prev %s" % (branch, commit, last_commit)) execute('git checkout -- . && git checkout ' + branch) print(git_get_changes(branch, commit, last_commit)) test_commit(branch, commit, last_commit, args, testFilePaths, have_mutt, have_mail) else: log("WARNING: main loadavg=%.2f is higher than %s" % (loadavg, args.maxLoadAvg)) if verbose: log("sleep for %s seconds" % args.sleepTime) time.sleep(args.sleepTime) except Exception as e: stack = traceback.format_exc() email_topic = '[%s:%s] ERROR in %s:%s' % (email_header, pid, branch, commit) send_email(args.emails, email_topic, stack, have_mutt, have_mail) print(stack) time.sleep(args.sleepTime) except KeyboardInterrupt: os.unlink(pidfile) send_email(args.emails, '[%s:%s] test-zstd-speed.py %s has been stopped' % (email_header, pid, script_version), args.message, have_mutt, have_mail) exit(0)