Question

在Python中，我使用paramiko来ssh远程设备。现在，我想从结果输出中获得实时数据图（时间与吞吐量），这基本上是两个模块之间的吞吐量测量。有没有人可以帮我怎么做？提前致谢。我在这里分享代码和结果输出，以便您更好地理解。

import sys
import time
import select
import paramiko

host = '169.254.115.1'
i = 1

#
# Try to connect to the host.
# Retry a few times if it fails.
#
while True:
    print ('Trying to connect to %s (%i/3)' % (host, i))

    try:
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        ssh.connect(host, port=22, username='user', password='user')
        print ("Connected to %s" % host)
        break
    except paramiko.AuthenticationException:
        print ("Authentication failed when connecting to %s") % host
        sys.exit(1)
    except:
        print ("Could not SSH to %s, waiting for it to start" % host)
        i += 1
        time.sleep(2)

    # If we could not connect within time limit
    if i == 3:
        print ("Could not connect to %s. Giving up") % host
        sys.exit(1)

# Send the command (non-blocking)
stdin, stdout, stderr = ssh.exec_command("cd /opt/cohda/test; sudo ./runtest_iperf_tx.sh")

# Wait for the command to terminate
while not stdout.channel.exit_status_ready():
    # Only print data if there is data to read in the channel
    if stdout.channel.recv_ready():
        rl, wl, xl = select.select([stdout.channel], [], [], 0.0)
        if len(rl) > 0:
            # Print data from stdout
            print (stdout.channel.recv(1024)),
#
# Disconnect from the host
#
print ("Command done, closing SSH connection")
ssh.close()

Throughput or resultant output

Answer 1

如果我负责这个问题，我会考虑使用Bokeh，因为它允许您使用Python进行编码，并且可以将数据更新流式传输到可视化：http://bokeh.pydata.org/en/latest/

然而，肯定有很多方法可以做到，还有很多选择！

需要帮助才能生成实时数据图

1 个答案: