Hi, I think GnuGk would run slightly better on Linux, but I don't think it should make much of a difference in your case. Your GnuGk should have no problem handling 5 720P streams. 5 years ago I estimated that a GnuGk on a dual core could roughly handle 50 proxied calls with 384 kbps video or about 15 calls with 2 Mbit video. Todays servers are faster, GnuGk changed in many ways, maybe somebody on the list has some current numbers to share ? Regards, Jan -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan@xxxxxxxxxxxxxx Website: http://www.gnugk.org Support: http://www.willamowius.com/gnugk-support.html Bo Xu wrote: > Hi, > > several weeks ago I reported a RTP-packet-lost issue and got fixed by > Simon's help and that is because we didn't handle the KeepAlive-packet's > SequenceNumber well, after that our soft-terminal works well with > H.460.18/19 enabled by gnuGK. now in the multi-participants testing we got > another issue: if there are more than 5 participants are sending 720P-H.264 > video stream, then we find that gnuGK lost packets again, normally there is > 1 packet-lost in about 1 minute for 5 participants(720P-H264); this cause > our MCU to keep on sending FastUpdate request and cause video-frozen or > video quality down. we are running gnuGK on a windows-box, will it be > better if we run gnuGK on a linux-box? and do you have any performance > testing document for how many 720P-H.264 video-stream could be support by > one gnuGK? Thanks! > > the gnuGK we are running now is: > 3.5 GNUGK > the PC on which our gnuGK is running is: > Windows 7 Professional 64 bit > I7 @ 3.4GHz > 4GB Ram > > Regards, > Bo Xu > > > > On Mon, Mar 3, 2014 at 3:18 PM, Bo Xu <boxuscience@xxxxxxxxx> wrote: > > > Hello Simon, > > > > Thanks a lot! yes as you mentioned our issue does relate with > > KeepAlive, the details are: our terminal use same series of RTP > > SequenceNumber for both video packet and KeepAlive packet, so when gnuGK > > relay this RTP channel the KeepAlive packet will not be send to our MCU and > > thus the SequenceNumber received by MCU becomes not continued, in my > > previous email I thought this is because gnuGK lost packet, actully gnuGK > > doesn't lost packet. we are updating our terminal now to separate the > > SequenceNumber of video packet and KeepAlive packet so the SequenceNumber > > of video packet will always be continued, Thanks for help us find the > > reason! > > > > Regards, > > Bo Xu > > > > > > > > > > > > > > > > > > Message: 6 > > Date: Tue, 4 Mar 2014 00:43:07 +1000 > > From: "Simon Horne" <s.horne@xxxxxxxxxxx> > > Subject: Re: a question about the RTP packet-lost > > from gnuGK when H.460.18/29 enabled > > To: "'GNU Gatekeeper Users'" <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> > > Message-ID: <019001cf36ee$e641c4e0$b2c54ea0$@spranto.com> > > Content-Type: text/plain; charset="us-ascii" > > > > Bo > > > > I think this might be a red herring. I think the keepAlive packet which is > > send 1 packet every 20 sec (which should be discarded) is being counted. > > > > Simon > > > > > > From: Bo Xu [mailto:boxuscience@xxxxxxxxx] > > Sent: 04 March 2014 00:30 > > To: openh323gk-users > > Subject: a question about the RTP packet-lost from gnuGK > > when H.460.18/29 enabled > > Hi, > > > > we are using gnuGK with H.460.18/19 enabled to connect our MCU and our > > software H.323 terminal, our gnuGK/MCU/terminal are in the same subnet in > > our testing. we found gnuGK can relay the video RTP packets from MCU well, > > but about every 20 second gnuGK will lost one packet from our terminal. I > > have tested both 720P video and CIF video and they are same. > > > > we already increased the RtpHandlerNumber parameter(we ever tried to set it > > up to 20), but it seems the packet-lost rate is always same(about every 20 > > seconds lost one packet). > > > > I am working on this and I still didn't figure out why the packets from MCU > > are never lost, only the packets from terminal are lost? I ever guess it > > might be because that every 20 seconds the buffer is full, but I cannot > > explain why both 720P and CIF video has the same packet-loast rate? ? > > which > > part of the gnuGK code I need to read? could you give me some clues for > > this? Thanks! > > > > Regards, > > Bo Xu > > ------------------------------------------------------------------------------ _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk-users Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/
