jebeaudet · December 11, 2019 18:27
diff --git a/gistfile1.txt b/gistfile1.txt
 PID from the threads/process will be different from the host that from inside the container. 

 This makes reading thread dump tricky as the thread dump will show the nid of inside the container however you might be checking CPU usage from the host!

 To find the mapping of the two, it's easy. Find the PID of the thread/process on the host. 

 After this, run `cat /proc/{PID}/status |grep NSpid`. Example : 
 ```
 NSpid:	31144	83
 ```
 This means that the PID 31144 on the host equals 83 inside the container. Now rejoice!
	PID from the threads/process will be different from the host that from inside the container.

	This makes reading thread dump tricky as the thread dump will show the nid of inside the container however you might be checking CPU usage from the host!

	To find the mapping of the two, it's easy. Find the PID of the thread/process on the host.

	After this, run `cat /proc/{PID}/status \|grep NSpid`. Example :
	```
	NSpid: 31144 83
	```
	This means that the PID 31144 on the host equals 83 inside the container. Now rejoice!