ps display thread name

Question

Is there a way for ps (or similar tool) to display the pthread\'s name? I wrote the following simple program:

// th_name.c
#include 
         


        

Answer 1

note the man page of pthread_setname_np(),which have showed how to get the threads' names:

pthread_setname_np() internally writes to the thread specific comm file under /proc filesystem: /proc/self/task/[tid]/comm. pthread_getname_np() retrieves it from the same location.

and

Example

The program below demonstrates the use of pthread_setname_np() and pthread_getname_np().

The following shell session shows a sample run of the program:

$ ./a.out

Created a thread. Default name is: a.out

The thread name after setting it is THREADFOO.

^Z #Suspend the program

1+ Stopped ./a.out

$ ps H -C a.out -o 'pid tid cmd comm'

PID TID CMD COMMAND

5990 5990 ./a.out a.out

5990 5991 ./a.out THREADFOO

$ cat /proc/5990/task/5990/comm

a.out

$ cat /proc/5990/task/5991/comm

THREADFOO