Hi Thanks for the suggestion. I tried it with udpsrc properties blocksize=50000 buffer-size=50000, but observed same issue (udpsrc taking 35-40%) Does your suggestion mean that I have to modify source code for udpsrc plugin which allocates buffer-pool and re-use them? Regards, Parag <div class="gmail_quote">On Mon, Jul 2, 2012 at 8:36 PM, Edward Hervey [via GStreamer-devel] <<a href="/user/SendEmail.jtp?type=node&node=4655477&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>> wrote: <blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi, On Mon, 2012-07-02 at 07:45 -0700, parag.salasakar wrote: > Hi > > I am trying to decode MPEG2TS bistream with following pipeline I am assuming this is GStreamer 0.10 <div><div class='shrinkable-quote'> > > gst-launch -v udpsrc port=5004 caps="application/x-rtp, clock-rate=90000, > media=(string)video" ! gstrtpjitterbuffer ! queue ! rtpmp2tdepay ! > mpegtsdemux ! queue ! ffdec_mpegvideo ! videoscale ! ffmpegcolorspace ! > autovideosink on my DSP platform > > However i noticed that when I try > > gst-launch -v udpsrc port=5004 caps="application/x-rtp, clock-rate=90000, > media=(string)video" ! fakesink silent=1 > > CPU utilization goes to 35% to 40% for 4 Mbps streams, which sounds weired > to me (how can just udpsrc take 35% of CPU?) > AM I missing anything? </div></div> This is due to the overhead of creating/destroying plenty of small GstBuffers. A solution would be to create a bufferpool and re-use GstBuffers. Edward > Parag > > -- > View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/udpsrc-performance-tp4655463.html" rel="nofollow" link="external" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/udpsrc-performance-tp4655463.html</a> > Sent from the GStreamer-devel mailing list archive at Nabble.com. > _______________________________________________ > gstreamer-devel mailing list > <a href="http://user/SendEmail.jtp?type=node&node=4655464&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="nofollow" link="external" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> _______________________________________________ gstreamer-devel mailing list <a href="http://user/SendEmail.jtp?type=node&node=4655464&i=1" rel="nofollow" link="external" target="_blank">[hidden email]</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="nofollow" link="external" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> <hr color="#cccccc" noshade size="1"> <div style="color:#444;font:12px tahoma,geneva,helvetica,arial,sans-serif"> <div style="font-weight:bold">If you reply to this email, your message will be added to the discussion below:</div> <a href="http://gstreamer-devel.966125.n4.nabble.com/udpsrc-performance-tp4655463p4655464.html" target="_blank" rel="nofollow" link="external">http://gstreamer-devel.966125.n4.nabble.com/udpsrc-performance-tp4655463p4655464.html</a> </div> <div style="color:#666;font:11px tahoma,geneva,helvetica,arial,sans-serif;margin-top:.4em;line-height:1.5em"> To unsubscribe from udpsrc performance, <a href="" target="_blank" rel="nofollow" link="external">click here</a>. <a href="http://gstreamer-devel.966125.n4.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml" rel="nofollow" style="font:9px serif" target="_blank" link="external">NAML</a> </div></blockquote></div> <hr align="left" width="300" /> View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/udpsrc-performance-tp4655463p4655477.html">Re: udpsrc performance</a> Sent from the <a href="http://gstreamer-devel.966125.n4.nabble.com/">GStreamer-devel mailing list archive</a> at Nabble.com.