Re: CPU utilization problem with 0.5.7-mt

[Sebastian Wilhelmi <wilhelmi ira uka de>]

Hi Saket,

> Here is the trace for ORBit-mt-0.5.7 :
> 
> (gdb) info threads
> * 4 Thread 7932  0x400b68fe in sigsuspend () from /lib/libc.so.6
>   3 Thread 7927  0x401ce6a0 in __pthread_alt_lock () from
> /lib/libpthread.so.0
>   2 Thread 7924 (initial thread)  0x400b68fe in sigsuspend ()
>    from /lib/libc.so.6
>   1 Thread 7926 (manager thread)  0x4014fd90 in poll () from
> /lib/libc.so.6
> 
> /******* The thread# 3 (7927) is consuming almost 100% of CPU. *****/
> 
> (gdb) thread 3
> [Switching to thread 3 (Thread 7927)]
> #0  0x401ce6a0 in __pthread_alt_lock () from /lib/libpthread.so.0
> (gdb) bt
> #0  0x401ce6a0 in __pthread_alt_lock () from /lib/libpthread.so.0
> #1  0x401caf12 in pthread_mutex_lock () from /lib/libpthread.so.0
> #2  0x401b15fc in g_get_current_time () from /usr/lib/libglib-1.2.so.0
> #3  0x401b1a5c in g_main_run () from /usr/lib/libglib-1.2.so.0
> #4  0x4007b9ce in giop_main () at giop-connection.c:381
> #5  0x4005b804 in CORBA_ORB_run (orb=0x804c830, ev=0xbf7ffaf0) at
> server.c:59
> #6  0x4004e540 in CORBA_ORB_run_proxy (orb_data=0x804c830) at orb.c:276
> #7  0x40069ed5 in g_thread_create_proxy (data=0x804eef8)
>     at orbit_thread_support.c:66
> #8  0x401ca065 in pthread_start_thread () from /lib/libpthread.so.0
> 

If that is really connected to Linux 2.4., as Zulkarnaens mail suggests, than
I can not yet do anything about it. I have not yet switched to 2.4 and do not
plan to do anytime soon. Until than I would simply call it an error of either
Linux or pthread (knowing, that it could as well be an error in ORBit-mt)

Bye,
Sebastian
-- 
Sebastian Wilhelmi
mailto:wilhelmi ira uka de
http://goethe.ira.uka.de/~wilhelmi