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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Jeff Shanab <br><b>Sent:</b> Monday, April 30, 2012 9:15 AM<br><b>To:</b> live-devel@lists.live555.com.<br><b>Subject:</b> 100% CPU in tcpReadHandler in extream case.<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have read thru the archives and found mention of this issue before but also that it had definitely been fixed in 2010.03.14.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am running 2012.2.29 libraries in my application recording 24x7 up to 45 RTSP streams running on Windows server 2008. After about a week of running the cpu will go from it’s normal 15% to 100% and then stay there.<o:p></o:p></p><p class=MsoNormal>If I profile the code during this time It always shows that the majority of the time is in tcpReadHandler as called from SingleStep and doEventLoop.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I need to get this to last longer and would appreciate any insights to what can cause this.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Potential issues.<o:p></o:p></p><p class=MsoNormal style='text-indent:.5in'>It is a VMWare VM on a decent rack mounted server.<o:p></o:p></p><p class=MsoNormal> Of the 45 connections only 10 are restreaming constantly, another 10 are just waiting for the camera to announce itself and another 5 or 6 are in a retrying loop every 5-60 seconds (random backoff timer on failed connections)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sanity checks.<o:p></o:p></p><p class=MsoNormal style='text-indent:.5in'>The number of sockets in use is in line with the number of connections. So I think I am ok with socket resources.<o:p></o:p></p><p class=MsoNormal style='text-indent:.5in'>This is a 4G box with 50% of the memory free and the app taking less than 200MB.<o:p></o:p></p><p class=MsoNormal style='text-indent:.5in'>No virus or heavy disk activity.<o:p></o:p></p><p class=MsoNormal style='text-indent:.5in'>Restarting the application and waiting for streams to reconnect goes back to 15% CPU<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'> Jeff Shanab, Manager, Software Engineering<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'> D 630.633.4515 | C 630.453.7764 | F 630.633.4815 | </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'> <a href="mailto:jshanab@smartwire.com">jshanab@smartwire.com</a></span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p><p class=MsoNormal><a href="http://www.smartwire.com/"><span style='color:#1F497D;text-decoration:none'><img border=0 width=626 height=108 id="Picture_x0020_5" src="cid:image001.gif@01CD26B0.F8DC2910" alt="Description: Description: Description: Description: cid:706AA5FB-B29A-4B95-B275-FE31EE559CF0@hsd1.il.comcast.net."></span></a><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> </span><a href="https://twitter.com/#!/WindyCityWire"><span style='color:#1F497D;text-decoration:none'><img border=0 width=22 height=29 id="Picture_x0020_3" src="cid:image002.gif@01CD26B0.F8DC2910" alt="Description: Description: Description: Description: Description: Description: Description: sig4"></span></a><span style='color:#1F497D'> </span><a href="http://www.youtube.com/user/WindyCityWire"><span style='color:#1F497D;text-decoration:none'><img border=0 width=22 height=29 id="Picture_x0020_2" src="cid:image003.gif@01CD26B0.F8DC2910" alt="Description: Description: Description: Description: Description: Description: Description: sig3"></span></a><span style='color:#1F497D'> </span><a href="https://www.facebook.com/pages/Windy-City-Wire/270745609656461"><span style='color:#1F497D;text-decoration:none'><img border=0 width=22 height=29 id="Picture_x0020_1" src="cid:image004.gif@01CD26B0.F8DC2910" alt="Description: Description: Description: Description: Description: Description: Description: sig2"></span></a><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>