【python】Psutil指定Pid监控机器cpu和内存

借鉴地址：https://www.liaoxuefeng.com/wiki/1016959663602400/1183565811281984

import smtplib
from email import encoders
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
from email.header import Header

import psutil
from datetime import datetime
import time
from matplotlib import pyplot as plt
import csv

from util.http_rtc_until import get_time, send

pid = 9214
proc = psutil.Process(pid)

def timer():
    out = open("timer.csv", 'w')
    start_time = int(time.time())
    while True:
        x = datetime.now().strftime("%M:%S")
        time.sleep(1)
        y = proc.memory_info().rss / 1024 / 1024
        print(x,'Used Memory:', y, 'MB')

        list = [x, y]
        csv_write = csv.writer(out)

        csv_write.writerow(list)
        end_time = int(time.time())
        if end_time - start_time > 5:
            break

def pic():
    with open("timer.csv") as Filename:
        reader = csv.reader(Filename)
        x = []
        y = []
        for row in reader:
            x.append(row[0])
            y.append(row[1])

    plt.plot(x, y)
    plt.xticks(x, x, rotation=60)
    plt.rcParams["figure.figsize"] = (8.0,8.0)
    plt.savefig('test.png')
    image = 'test.png'
    plt.show()

    # send("meizhuo@conew.com","来自251的图片",image)
    sender = "meizhuo@conew.com"
    receiver = "meizhuo@conew.com"
    password = "cbidcdmrsnupphtf"   #密钥
    smtp = "smtp.gmail.com"
    port = "465"    #gmai固定端口号

    message = MIMEMultipart()
    message['From'] = sender
    message['To'] = receiver
    message['Subject'] = Header("251的图片", 'UTF-8')  # 邮件主题

    #附件带图片
    with open(image, 'rb') as f:
        mime = MIMEBase('image', 'image', filename=image)
        mime.add_header('Content-Disposition', 'attachment', filename=image)
        mime.set_payload(f.read())
        encoders.encode_base64(mime)
        message.attach(mime)

    smtp_obj = smtplib.SMTP_SSL(smtp, port)
    smtp_obj.login(sender, password)
    receiver and smtp_obj.sendmail(sender, receiver, message.as_string())
    print("success")

timer()
pic()