python 实时绘制 iperf吞吐量数据

python matplotlib 实时绘制iperf吞吐量数据

效果展示
单条流

多条流

python 代码

import sys
import matplotlib.pyplot as plt
import numpy as np
import time
import thread
from matplotlib import animation

colors = ["red",
        "green",
        "blue",
        "rosybrown",
        "black"]

markers = ["x",
        "o",
        "v",
        "s",
        "*",
        ]

tp_pair = []
pair_idx = []
pair_cnt = 0

filter_str = "Mbits"
fig = plt.figure(figsize=(18, 8), facecolor="white")
plt.grid(True)
plt.ion()

class tp_item(object):
    idx = 0
    ts = 0.0
    mb = 0.0
    bw = 0
    def tp_init(self, line):
        line = line.strip()
        line = line.split()
        self.idx = int(line[1].replace("]", ""))
        self.ts = float(line[2].split("-")[1])
        self.mb = float(line[4])
        self.bw = float(line[6])
        if self.idx not in pair_idx:
            pair_idx.append(self.idx)
        update_tp(self.idx, self.ts, self.bw)

    def __init__(self, line):
        self.tp_init(line)

def update_tp(idx, ts, bw):
    i = pair_idx.index(idx)
    tp_pair[i][0] = tp_pair[i][1]
    tp_pair[i][1] = ts
    tp_pair[i][2] = tp_pair[i][3]
    tp_pair[i][3] = bw

def dump_tp_item(i):
    print("id: %d, ts: %f, MBytes: %f, BW: %f"%(
        i.idx, i.ts, i.mb, i.bw))

def tp_graph(f):
    cur_base = 0.0
    prev_base = 0.0
    while True:
        try:
            while cur_base == prev_base:
                l = f.readline() 
                if (filter_str in l) and ("SUM" not in l):
                    item = tp_item(l)
                    dump_tp_item(item)
                    if (cur_base == 0.0 and prev_base == 0.0):
                        prev_base = cur_base = item.ts
                    else:
                        prev_base = cur_base
                        cur_base = item.ts
            for i in range(len(pair_idx)):
                plt.plot([tp_pair[i][0], tp_pair[i][1]], [tp_pair[i][2], tp_pair[i][3]],
                        color=colors[i], marker=markers[i])
                plt.text(tp_pair[i][1], tp_pair[i][3], tp_pair[i][3], ha="center", va="bottom", fontsize=15)
            plt.pause(1)
            prev_base = cur_base
        except Exception as err:
            print(err)

def gen_tp_pair(num):
    for i in range(num):
        tp_pair.append([])
        for j in range(4):
            tp_pair[i].append(0)

if __name__ == '__main__':
    pair_num = 1
    if len(sys.argv) < 3:
        print("Usage: iperf_tp.py  ")
        exit(-1)
    pair_num = int(sys.argv[2])
    pair_cnt = pair_num
    gen_tp_pair(pair_num)
    print(tp_pair)
    f = open(sys.argv[1], mode='r')
    print("Open: %s"%(sys.argv[1]))
    tp_graph(f)
    f.close()