服务器和客户端之间通过Python输出的吞吐量不正确 [英] Incorrect throughput output via Python between server and client

问题描述

我正在编写一个python代码来查找服务器和客户端之间的吞吐量。它基于speedtest.net功能，我发送一个虚拟文件来计算速度。我面临的问题是吞吐量输出不可靠。我将非常感谢你的建议。这是代码。



server.py

I am writing a python code to find throughput between server and client. It is based on speedtest.net functionality where I am sending a dummy file to calculate the speed. The problem I am facing is unreliable throughput output. I will appreciate your suggestions on the same. Here is the code.

server.py

import socket

import os

port = 60000
s = socket.socket()
host = socket.gethostname()
s.bind((host, port))
s.listen(5)

print 'Server listening....'

while True:
   conn, addr = s.accept()    
   print 'Got connection from', addr
   data = conn.recv(1024)
   print('Server received', repr(data))

   filename='akki.txt'
   b = os.path.getsize(filename)
   f = open(filename,'rb')
   l = f.read(b)

   while (l):

      conn.send(l)

      l = f.read(b)
   f.close()

   print('Done sending')
   conn.send('Thank you for connecting')
   conn.close()

Client.py

Client.py

import socket
import time
import os

s = socket.socket()
host = socket.gethostname()
port = 60000

t1 = time.time()
s.connect((host, port))
s.send("Hello server!")

with open('received_file', 'wb') as f:
    print 'file opened'
    t2 = time.time()
    while True:

        data = s.recv(1024)

        if not data:
            break

        f.write(data)
        t3 = time.time()

print data
print 'Total:', t3 - t1
print 'Throughput:', round((1024.0 * 0.001) / (t3 - t1), 3),
print 'K/sec.'
f.close()
print('Successfully received the file')
s.close()
print('connection closed')

发送akki.txt时的输出



服务器输出



服务器监听....

从（'获得连接10.143.47.165'，60902）

（'服务器收到'，''你好，服务器！'）

完成发送



客户输出文件已打开



原始计时器：1503350568.11 1503350568.11 1503350568.11

总计：0.00499987602234

**吞吐量：204.805 K /秒。**

成功收到文件

连接关闭
ak.zip的输出（更大的文件）



打开客户端输出文件



总计：0.0499999523163

**吞吐量：20.48 K /秒。**

成功收到文件

连接关闭



我尝试过：



输出正在变化。就像，如果我使用较小尺寸的文件，吞吐量更高，但是如果我发送的文件更大，吞吐量更低。我正在寻找解决方案，以获得两个同行之间的恒定吞吐速度。

Output when sending akki.txt

Server Output

Server listening....
Got connection from ('10.143.47.165', 60902)
('Server received', "'Hello server!'")
Done sending

Client output file opened

Raw timers: 1503350568.11 1503350568.11 1503350568.11
Total: 0.00499987602234
**Throughput: 204.805 K/sec.**
Successfully received the file
connection closed
Output for ak.zip ( which is bigger file)

Client output file opened

Total: 0.0499999523163
**Throughput: 20.48 K/sec.**
Successfully received the file
connection closed

What I have tried:

The output is changing. Like, If I am using file with smaller size, the throughput is more, however if I am sending the file with bigger size, the throughput is less. I am looking for the solution to get the constant throughput speed between two peers.

推荐答案

将此行更改为

change this line to

print 'Throughput:', round((1024.0 * 0.001) / (t3 - t1), 3),

print 'Throughput:', round((totalbytesreceived * 0.001) / (t3 - t1), 3),

其中totalbytesreceived将是收到的文件的大小

where totalbytesreceived will be the size of the file received

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