[Freeswitch-users] Possible memory leak - need a second opinion

[Apostolos Pantsiopoulos]

Since nobody replied I am posting it to JIRA.

Apostolos Pantsiopoulos wrote:
> Hi I noticed that after a day of relatively moderate traffic (about 400 
> simultaneous channels average) the memory used by FS reached 1.3 GB of 
> RAM. I tried to trace the leak (if any) with valgrind and got that :
> 
> ==18894== 572 bytes in 1 blocks are definitely lost in loss record 148 
> of 193
> ==18894==    at 0x40053C0: malloc (vg_replace_malloc.c:149)
> ==18894==    by 0x7AFDE93: sofia_glue_do_invite (sofia_glue.c:1599)
> ==18894==    by 0x7ACB191: sofia_on_init (mod_sofia.c:102)
> ==18894==    by 0x405B124: switch_core_session_run 
> (switch_core_state_machine.c:480)
> ==18894==    by 0x4058204: switch_core_session_thread 
> (switch_core_session.c:1064)
> ==18894==    by 0x40CD6C5: dummy_worker (thread.c:138)
> ==18894==    by 0xB5346A: start_thread (in /lib/libpthread-2.5.so)
> ==18894==    by 0xAAADBD: clone (in /lib/libc-2.5.so)
> 
> 
> So, I assummed that this happens for every call. I tried testing it 
> again by placing two calls before shutting down FS, but it only came up 
> once. I wanted to get a second opinion before posting this to JIRA as an 
> issue.
> 
> I used revision 14269 of the SVN. I am attaching the valgrind output as 
> well.
> 
> I also noticed that only one of my CPU cores gets really busy when 
> dealing with moderate traffic. From what I read in the mailing list 
> users are encouraged to use 64bit multi core servers for FS because it 
> scales up better. But this is not what I am seeing in practice. Could 
> the single threaded architecture of libsofia be the cause of that behavior?
> 
> 
> 
> 
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-- 
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Apostolos Pantsiopoulos
Kinetix Tele.com R & D
email: regs at kinetix.gr
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