12-18-2002
Count Number Of Threads in a Process
I am trying to find out that how many number of threads are currently running or in any other state which is created by POSIX standard in a process.
First I have defined a variable called proc_var of type proc defined in sys/proc.h.Next I open up the dir /proc and per directory wise I do an ioctl operation with cmd type PIOCPSINFO and target as address space of proc_var. But when I print the value of the member variable p_lwpcnt of proc_var ( i am not sure wether i am reffering to the correct one ) , i get output '6488064' as its value.I found out that the process is a user created one and the code creates only four threads.
Kindly guide me how to find the correct number Threads and its details, currently executing in a process.
10 More Discussions You Might Find Interesting
1. HP-UX
hi,all:
how to see the threads count of a process in hp unix?
thanks (2 Replies)
Discussion started by: bugbugbug
2 Replies
2. Linux
Hi
Anybody knows max. no. of threads handled by a process in linux. Please reply
Thanks in advnce :confused: (0 Replies)
Discussion started by: Agnello
0 Replies
3. UNIX for Advanced & Expert Users
Hi all,
How can I get the list of all Threads and the Total count of threads under a particular process ?
Do suggest !!
Awaiting for the replies !!
Thanks
Varun:b: (2 Replies)
Discussion started by: varungupta
2 Replies
4. HP-UX
Hi,
I have a process which creates pthreads to generate some reports. After creating the reports these threads return null. But after 1024 threads, the process is not able to create any threads further.,and at max 5 threads are existing simultaneously and are returning the control back after... (2 Replies)
Discussion started by: Krsh
2 Replies
5. UNIX for Advanced & Expert Users
What are the maximum number of threads possible per Process? Is it OS dependent? (1 Reply)
Discussion started by: digdarshan
1 Replies
6. Solaris
Is there any command to find
1) the number of threads running
2) kernel boot mode
in solaris box (2 Replies)
Discussion started by: vickylife
2 Replies
7. Shell Programming and Scripting
Hi experts a have a very large file and I need to add two columns: the first one numbering the incidence of records and the another with the total count
The input file:
21 2341 A
21 2341 A
21 2341 A
21 2341 C
21 2341 C
21 2341 C
21 2341 C
21 4567 A
21 4567 A
21 4567 C
... (6 Replies)
Discussion started by: juelillo
6 Replies
8. AIX
Hello,
On Linux, I can use 'ps -efL | grep process_name' to list all threads that belong to a running process. -L has a different meaning on AIX and I could not find an equivalent flag in the man pages.
Does anyone know of a way to dump the threads under a running process?
Thanks,... (2 Replies)
Discussion started by: makodarear
2 Replies
9. SuSE
I have this error message from the logs of Zimbra email running on SUSE 11.2
Is the thread maximum of 20 an operating system parameter, or is it part of the application code, or part of the java run time?
Part two, how would I increase that number? (3 Replies)
Discussion started by: jgt
3 Replies
10. HP-UX
Hi All,
When i was trying to get total number of threads per java process using this command ps -o NLWP PID, I'm not getting any output. Could someone help me in this issue.
Thanks,
GMar (1 Reply)
Discussion started by: mgangumolu
1 Replies
PS(1) General Commands Manual PS(1)
NAME
ps, psu - process status
SYNOPSIS
ps
psu [ user ]
DESCRIPTION
Ps prints information about processes. Psu prints only information about processes started by user (default $user).
For each process reported, the user, process id, user time, system time, size, state, and command name are printed. State is one of the
following:
Moribund Process has exited and is about to have its resources reclaimed.
Ready on the queue of processes ready to be run.
Scheding about to be run.
Running running.
Queueing waiting on a queue for a resource.
Wakeme waiting for I/O or some other kernel event to wake it up.
Broken dead of unnatural causes; lingering so that it can be examined.
Stopped stopped.
Stopwait waiting for another process to stop.
Fault servicing a page fault.
Idle waiting for something to do (kernel processes only).
New being created.
Pageout paging out some other process.
Syscall performing the named system call.
no resource waiting for more of a critical resource.
FILES
/proc/*/status
SOURCE
/sys/src/cmd/ps.c
/rc/bin/psu
SEE ALSO
kill(1), db(1), ps(1), proc(3)
PS(1)