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<title>RE: [Live-devel] optimising openRTSP</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Ross,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If I use 30 fps stream ( 32 KB frame size
and 16 channels)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";font-weight:bold'>ReorderingPacketBuffer::storePacket(BufferedPacket*)
<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";font-weight:bold'><o:p> </o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue;font-weight:bold'>is
taking around 13 % time.<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";font-weight:bold'><o:p> </o:p></span></font></b></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I am having 512 MB Ram in my box. And no
other service is running. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I am running openRTSP with following
options<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>./openRTSP -Q -b 32000 -F vid-56-$i -d
1800 rtsp://172.16.48.50:$i/TestJpeg >& log56-$i &<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Anoop<o:p></o:p></span></font></p>
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<hr size=2 width="100%" align=center tabindex=-1>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
live-devel-bounces@ns.live555.com [mailto:live-devel-bounces@ns.live555.com] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Anoop P.A.<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, October 29, 2008
3:24 PM<br>
<b><span style='font-weight:bold'>To:</span></b> LIVE555 Streaming Media -
development & use<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Live-devel]
optimising openRTSP</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>Hi Ross,</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>I have profiled my system and found</span></font> <font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>that</span></font>
<font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>around
8.7 % time is being spend in</span></font> <font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>Reordering Packet Buffer</span></font><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'> <<OpenRTSP_profiling.log>> </span></font><o:p></o:p></p>
<p><b><font size=3 face="Courier New"><span style='font-size:12.0pt;font-family:
"Courier New";font-weight:bold'>VMA
samples </span></font> </b><b><font face="Courier New"><span
style='font-family:"Courier New";font-weight:bold'>%time
App-name Symbol-name</span></font></b><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'><b><span style='font-weight:bold'>00465778
35862 8.7658 openRTSP</span></b></span></font><b><span
style='font-weight:bold'> </span></b><b><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";font-weight:bold'>ReorderingPacketBuffer::storePacket(BufferedPacket*)</span></font></b>
<o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>And around 3.4 % time is being spend in</span></font> <o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'><b><span style='font-weight:bold'>00463ac8
13521 3.3049
openRTSP
seqNumLT(unsigned short, unsigned short)</span></b></span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>I am attaching</span></font> <font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>entire oprofilelog for
openRTSP log kindly help me with some suggestion to</span></font> <font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>dig
out the problem</span></font> <o:p></o:p></p>
<p><b><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";font-weight:bold'>PS</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>.
These logs captured while recording 16 mjpeg streams (each with 20 FPS and 32KB
framesize)</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>Thanks</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>Anoop</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>-----Original Message-----<br>
From: live-devel-bounces@ns.live555.com [<a
href="mailto:live-devel-bounces@ns.live555.com">mailto:live-devel-bounces@ns.live555.com</a>]
On Behalf Of Ross Finlayson<br>
Sent: Thursday, October 16, 2008 7:02 PM<br>
To: LIVE555 Streaming Media - development & use<br>
Subject: Re: [Live-devel] optimising openRTSP</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>>I have cross compiled openRTSP for mips platform and I am
using its for</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>>recording mjpeg streams(30fps frame rate 32kb frame size). I
need to run</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>>multiple instances of this client ( say 16). But the
problem is one</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>>openRTSP client consuming around 12% of CPU time.</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>That's strange, considering that the application - after it does
the </span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>RTSP protocol exchange - does little more than sitting in a
loop, </span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>reading data from a network socket and then writing it to a </span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>file. (It also adds a JPEG header for each frame.)</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>> So it is difficult to</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>>run more than 6 clients sessions without considerable packet
loss. How</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>>do I optimize openRTSP application??</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>I don't know. You're first going to have to figure out
where it's </span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>spending most of its CPU time, and why.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>
</span></font><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Ross Finlayson</span></font><o:p></o:p></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>
</span></font><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Live Networks, Inc. (LIVE555.COM)</span></font><o:p></o:p></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>
</span></font><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'><<a href="http://www.live555.com/">http://www.live555.com/</a>></span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>_______________________________________________</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>live-devel mailing list</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'>live-devel@lists.live555.com</span></font><o:p></o:p></p>
<p><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New"'><a href="http://lists.live555.com/mailman/listinfo/live-devel">http://lists.live555.com/mailman/listinfo/live-devel</a></span></font><o:p></o:p></p>
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