Hi !

I think this has already been discussed in this mailing list, in
previous posts.
Have you read this page, from the FAQ, first ? :
http://trac.pjsip.org/repos/wiki/FAQ#Performance

Here, there are many tips about CPU consumption.

Electrocut

César Davi wrote:

On Tue, Jun 10, 2008 at 10:19 PM, César Davi cesargxn@gmail.com wrote:

Actually although there is no audio, siprtp sample application does
send and receive RTP packets. So it's not totally idle on the media
side at all.

Yeah it looks high. What ARM is that?

In pjsip the number of threads (0-N) is chosen by application, and in
siprtp it happens that it uses one thread per call. As Tanguy pointed
out in the other mail, the link to the FAQ contains lots of switches
to enhance performance, please try that out.

Cheers
Benny

Hi Benny,

I'm using the EDB9302A board (cirrus logic), features:

• ARM 9 processor - EP9302 - running at 200Mhz;
• 64MByte SDRAM;
• 16MByte NOR Flash Memory.

Thanks for your help.

Cesar

2008/6/10 Benny Prijono bennylp@pjsip.org:

utilization, the problem were fixed by changing codec to PCMU and set
default clock to 8000(add "#define PJSUA_DEFAULT_CLOCK_RATE (8000)" at
config_site.h)

FC

On Wed, Jun 11, 2008 at 19:28, César Davi cesargxn@gmail.com wrote:

Hi All,

I've made some changes suggested in
http://trac.pjsip.org/repos/wiki/FAQ#Performance:

(my config_site.h file)

#ifndef CONFIG_SITE_H_
#define CONFIG_SITE_H_

#define PJ_LOG_MAX_LEVEL 3
#define PJSUA_DEFAULT_CLOCK_RATE (8000)
#define PJ_ENABLE_EXTRA_CHECK 0
#define PJ_OS_HAS_CHECK_STACK 0
#define PJSIP_SAFE_MODULE 0
#define PJSIP_UNESCAPE_IN_PLACE 1
#define PJ_HASH_USE_OWN_TOLOWER 1

#endif
/CONFIG_SITE_H_/

The CPU consumption is still high (sometimes 96 %).

Does anyone have any suggestions?

Thanks.

Cesar

2008/6/11 César Davi cesargxn@gmail.com:

Have you tried with some build optimization, e.g.:

./aconfigure CFLAGS="-O3 -DNDEBUG"

and maybe some other things specific to your ARM platform.

Cheers
Benny

On Wed, Jun 11, 2008 at 9:27 PM, César Davi cesargxn@gmail.com wrote:

Hi All,

I wonder if anyone has used the PJSIP in an embedded environment, with
low requirements of memory and processing power (something around
200Mhz). For what I have seen the stack is behaving well in desktop,
but I have not seen much discussion on embedded environments. I
personally have faced some problems regarding the performance in an
application using ARM9 and may be forced to abandon the use of PJSIP
in my project.

All opinions are welcome.

Thanks in advance.

Cesar

2008/6/11 César Davi cesargxn@gmail.com:

On Fri, Jun 13, 2008 at 9:11 PM, César Davi cesargxn@gmail.com wrote:

Really? This list has been running long enough long enough (more than
3 years now) and I've heard many discussions about embedded use of
pjsip. About CPU requirement, I know for sure people who have
production hardware running pjsip on a 20 MHz MIPS (can't name them
for political reason unfortunately). And don't forget about mobile
devices as well, which from device capability is not dissimilar from
embedded.  So I don't see any problems with this. It's just a matter
of configuring it correctly, and of course we all know this is never
straightforward with any embedded developments.

What is your expectation anyway? If you expect to run 8 simulteneous
speex calls on your 200MHz ARM9 then probably it will never happen.
And as I told you, siprtp is thread based so this probably is not the
ideal approach for your development. And why are you using siprtp to
measure up pjsip. What are you trying to do in the first place?

I'm just saying that there are plenty of options with pjsip. There are
plenty of features. And each features come with their own cost (CPU,
memory) of course. So it's always a matter of choosing the right
feature to have, to fit in the capability of the device. And you
haven't explained what you're trying to do, so we can't give good
suggestions for now.

Of course nobody forces anybody to use pjsip. There are plenty of
other choices. It's just a pity if you have to abandon pjsip based on
wrong experimentation.

Cheers
Benny

What kind of performace problems are you experiencing?
Do you have problems with a certain codec, problems with multiple calls,
etc.
I'm running PJSIP on three different ARM9 200MHz development boards with
great success.

Cheers,
Dan

On Fri, 2008-06-13 at 17:11 -0300, César Davi wrote:

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