【发布时间】:2017-05-07 06:22:14
【问题描述】:
在 Python 中,我使用 paramiko 对远程设备进行 ssh。现在,我想从结果输出中获得一个实时数据图(时间与吞吐量),这基本上是两个模块之间的吞吐量测量。有没有人可以帮助我如何做到这一点?提前致谢。我在这里分享的代码和结果输出是为了让您更好地理解。
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()
【问题讨论】:
-
显示你到目前为止所做的代码
-
请再看一下我的帖子,然后点击:看这里的代码
-
您应该将答案中的代码粘贴为文本,而不是图片。
-
我觉得现在可以理解了。
标签: python ssh paramiko throughput