bench.py

import time
import re


def tail(thefile):
    # thefile.seek(0, 2)
    while True:
        line = thefile.readline()
        if not line:
            time.sleep(0.5)
            continue
        line = line.rstrip("\n").rstrip("\r")
        if line != "":
            yield line


events = {"PlayerJoin": "[NetworkManager] OnPlayerJoined ", "PlayerLeft": "[NetworkManager] OnPlayerLeft ",
          "EnterRoom": "[RoomManager] Entering Room: ", "ScreenShot": "Took screenshot to: "}

log_date_regex = re.compile(
    "([0-9]{4}\.[0-9]{2}\.[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}) .*"
)

log_date_regex2 = re.compile(
    "([0-9]{4}\.[0-9]{2}\.[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}) .*?"
)


def execute(line):
    for event in events:
        index = line.find(events[event])
        if index != -1:
            body = line[index + len(events[event]):]
            _ = log_date_regex.match(line).group(1), "\t" + event + ": " + body


def execute2(line):
    for event in events:
        index = line.find(events[event])
        if index != -1:
            body = line[index + len(events[event]):]
            _ = log_date_regex2.match(line).group(1), "\t" + event + ": " + body


#


def main():
    log_file = "/Users/bootjp/output_log_23-11-15.txt"

    f = open(log_file, "r", encoding="utf-8")
    # with open(log_file, "r", encoding="utf-8") as f:
    lines = f.readlines()

    for _ in range(3):
        start = time.time()
        for line in lines:
            execute(line)
        elapsed_time = time.time() - start
        print("matching for .*  elapsed_time:{0}".format(elapsed_time) + "[sec]")

        start = time.time()
        for line in lines:
            execute2(line)
        elapsed_time = time.time() - start
        print("matching for .*? elapsed_time:{0}".format(elapsed_time) + "[sec]")
        print("--")

    f.close()


if __name__ == "__main__":
    main()