<DIV> Hi Zhao Liang,</DIV>
<DIV> I use ps command to get the following results:</DIV>
<DIV> </DIV>
<DIV> <A href="mailto:root@193.167.244.115:/opt/test">root@193.167.244.115:/opt/test</A># ps -ma <BR> PID TTY TIME CMD<BR> 601 pts/0 00:06:35 mpegavdectest07<BR> - - 00:00:02 -<BR> - - 00:00:00 -<BR> - - 00:00:07 -<BR> - - 00:00:02 -<BR> - - 00:00:06 -<BR> - - 00:00:06 -<BR> - - 00:05:58 -<BR> - - 00:00:00 -<BR> - - 00:00:09 -<BR> 635 pts/1 00:00:00 ps<BR> - - 00:00:00 -</DIV>
<DIV> </DIV>
<P> it would not display the object library at all,thus I still cannot locate the modules, is there any optional parameters I forgot? thank you</P>
<P> Best regards </P>
<P> Volter</P>
<P> </P>
<P> </P>
<P><BR>在2008-07-24，"Zhao Liang-E3423C" <E3423C@motorola.com> 写道：<BR></P>
<BLOCKQUOTE id="isReplyContent" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV dir="ltr" align="left"><FONT face="Courier New" color="#0000ff"><SPAN class="569390002-24072008">you can see which thread took much cpu by "ps", and locate the modules by log.</SPAN></FONT></DIV>
<DIV><FONT face="Courier New" color="#0000ff"></FONT><BR><SPAN class="569390002-24072008"><FONT face="Courier New" color="#0000ff">ZhaoLiang</FONT></SPAN></DIV>
<DIV class="OutlookMessageHeader" lang="en-us" dir="ltr" align="left">
<HR tabIndex="-1">
<FONT face="Tahoma" size="2"><B>From:</B> <A href="mailto:gstreamer-devel-bounces@lists.sourceforge.net">gstreamer-devel-bounces@lists.sourceforge.net</A> [mailto:<A href="mailto:gstreamer-devel-bounces@lists.sourceforge.net">gstreamer-devel-bounces@lists.sourceforge.net</A>] <B>On Behalf Of </B>Volter Yen<BR><B>Sent:</B> Thursday, July 24, 2008 9:57 AM<BR><B>To:</B> <A href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</A>; davinci-linux-open-source<BR><B>Subject:</B> [gst-devel] how to check the gstreamer plugins' performancebottleneck<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>Hi all,</DIV>
<DIV> Recently,I noticed that my gstreamer application take a lot of CPU resource, my platform is Ti dm644X(arm9+dsp), and I have used oprofile to get the following reports when playing a D1 mpeg2 ts file:</DIV>
<DIV><A href="mailto:root@193.167.244.115:/opt/test/">root@193.167.244.115:/opt/test/</A># opreport <BR>CPU: CPU with timer interrupt, speed 0 MHz (estimated)<BR>Profiling through timer interrupt<BR> TIMER:0|<BR> samples| %|<BR>------------------<BR> 65757 788983 no-vmlinux<BR> 4489 5.3861 libc.so.6<BR> 2367 2.8400 libglib-2.0.so.0<BR> 2348 2.8172 libgstbase-0.10.so.0<BR> 1756 2.1069 libpthread.so.0<BR> 1750 2.0997 libgstreamer-0.10.so.0<BR> 1419 1.7026 libgobject-2.0.so.0<BR> 1160 1.3918 libgstflumpegdemux.so<BR> 539 0.6467 libce.so<BR> 385 0.4619 libgstaudio-0.10.so.0<BR> 354 0.4247 libgstcoreelements.so<BR> 291 0.3492 libxml2.so.2<BR> 187 0.2244 ld-linux.so.3<BR> 175 0.2100 libgthread-2.0.so.0<BR> 98 0.1176 libgstadecoder.so<BR> 87 0.1044 libgstfbvideosink.so<BR> 62 0.0744 libgstgdecoder.so<BR> 46 0.0552 oprofiled<BR> 39 0.0468 sh<BR> 27 0.0324 libgstossaudio.so<BR> 3 0.0036 sleep<BR> 3 0.0036 librt.so.1<BR> 2 0.0024 bash</DIV>
<DIV>and I have used a 320x240 mpeg2 ts file and a D1 mpeg2 ts file as the source, when use the former,the gstreamer application take 50% of CPU while the later take almost total CPU, so I guses the bottleneck maybe be caused by the flutsdemux....</DIV>
<DIV> Is there way to trace into .so file to located the detailed code section? or any other ideas? thank you</DIV>
<DIV> </DIV>
<DIV> Best regards</DIV>
<DIV> </DIV>
<DIV> Volter</DIV><BR><!-- footer --><BR>
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