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I might be wrong (anybody wants to comment?) but such threads are handled the same way as processes - meaning that if your run e.g. htop (or ps, etc...) and you spawn a thread, you'll see it running with its own PID (different from the parent process).
H Show threads as if they were processes
-L Show threads, possibly with LWP and NLWP columns
-T Show threads, possibly with SPID column
m Show threads after processes
-m Show threads after processes
Also, practically everything you would ever want to know about a particular thread can be found in files under /proc/[PID]/task/[TID].
Thanks for your answer.
Indeed top gives me the threads but the TID is not part of the information. Instead, I get a different PID for each POSIX therad.
Is there a way to get the TID also?
The information related to the thread is very interesting. How to get either he TID or the thread name while execution. We ran the top and ps utilities as a child process to the main process running the threads and record he information.
Last edited by YehudaSinger; 04-06-2015 at 05:11 AM.
Thanks for your answer. here are my remarks:
1, The TID is not the thread ID which is obtained either during the creation or by the thread_self)_'
2. The TID is obtained by the system call gettid(). This function is not in the libc. Hence, we call it by the following sequence: syscall(SYS_gettid) ;