how to test the stability of my linode?
In my summary, i can see IPv4 Traffic (bits/s)
public inbound and public outbound avg is 26kb/s,
How can I know the stability of the IpV4?
If I understand your question correctly, you are looking for ways to stress test your Linode. There are quite a few open source options available, and I found a blog post that reviews these load testing tools. This article includes a tool called Hey that was recommended to me by a friend.
You may also be interested in looking into a tool called iPerf which is a Linux network performance measurement tool. iPerf will test the throughput, or how much data travels successfully, of the connection between two points- ie. your home computer and your Linode.
I hope this has been helpful!