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<TITLE>RE: [Live-devel] optimising openRTSP</TITLE>
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<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Hi Ross,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">I</FONT></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"> have profiled</FONT></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"> my system and found</FONT></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New">that</FONT></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New">around 8</FONT></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">.7</FONT></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"> % time is being spend in</FONT></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New">Reordering Packet Buffer</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Arial" SIZE=2 COLOR="#000000"> <<OpenRTSP_profiling.log>> </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><B></B></SPAN><SPAN LANG="en-us"><B><FONT FACE="Courier New">VMA samples </FONT></B></SPAN><SPAN LANG="en-us"><B></B></SPAN><SPAN LANG="en-us"><B> <FONT FACE="Courier New">%time App-name Symbol-name</FONT></B></SPAN><SPAN LANG="en-us"><B></B></SPAN><SPAN LANG="en-us"><B></B></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"></FONT></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"></FONT></SPAN><SPAN LANG="en-us"><B><FONT SIZE=2 FACE="Courier New">00465778 35862 8.7658 openRTSP</FONT></B></SPAN><SPAN LANG="en-us"><B><FONT SIZE=2 FACE="Courier New"></FONT></B></SPAN><SPAN LANG="en-us"><B> <FONT SIZE=2 FACE="Courier New">ReorderingPacketBuffer::storePacket(BufferedPacket*)</FONT></B></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"></FONT></SPAN><SPAN LANG="en-us"> </SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">And around 3.4 % time is being spend in</FONT></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New"></FONT></SPAN><SPAN LANG="en-us"> </SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"></FONT></SPAN><SPAN LANG="en-us"><B><FONT SIZE=2 FACE="Courier New">00463ac8 13521 3.3049 openRTSP seqNumLT(unsigned short, unsigned short)</FONT></B></SPAN><SPAN LANG="en-us"><B></B></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">I am attaching</FONT></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New">entire oprofilelog for openRTSP</FONT></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"> log kindly help me with some suggestion to</FONT></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New">dig out the problem</FONT></SPAN><SPAN LANG="en-us"> </SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><B><FONT SIZE=2 FACE="Courier New">PS</FONT></B></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">. These logs captured while recording 16 mjpeg streams (each with 20 FPS and 32KB framesize)</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Thanks</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Anoop</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="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</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>I have cross compiled openRTSP for mips platform and I am using its for</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>recording mjpeg streams(30fps frame rate 32kb frame size). I need to run</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>multiple instances of this client ( say 16). But the problem is one</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>openRTSP client consuming around 12% of CPU time.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">That's strange, considering that the application - after it does the </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">RTSP protocol exchange - does little more than sitting in a loop, </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">reading data from a network socket and then writing it to a </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">file. (It also adds a JPEG header for each frame.)</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">> So it is difficult to</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>run more than 6 clients sessions without considerable packet loss. How</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>do I optimize openRTSP application??</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">I don't know. You're first going to have to figure out where it's </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">spending most of its CPU time, and why.</FONT></SPAN></P>
<BR>
<P DIR=LTR><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New">Ross Finlayson</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New">Live Networks, Inc. (LIVE555.COM)</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Courier New"><<A HREF="http://www.live555.com/">http://www.live555.com/</A>></FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">_______________________________________________</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">live-devel mailing list</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">live-devel@lists.live555.com</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New"><A HREF="http://lists.live555.com/mailman/listinfo/live-devel">http://lists.live555.com/mailman/listinfo/live-devel</A></FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
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