> 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@... > Website: http://www.gnugk.org > Support: http://www.willamowius.com/gnugk-support.html Hi Jan, Thanks! Regards, Bo Xu On Wed, Apr 2, 2014 at 11:13 AM, Bo Xu <boxuscie...@gmail.com> 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 <boxuscie...@gmail.com> 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.ho...@spranto.com> >> Subject: Re: [Openh323gk-users] a question about the RTP packet-lost >> from gnuGK when H.460.18/29 enabled >> To: "'GNU Gatekeeper Users'" <openh323gk-users@lists.sourceforge.net> >> 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:boxuscie...@gmail.com] >> Sent: 04 March 2014 00:30 >> To: openh323gk-users >> Subject: [Openh323gk-users] 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 >> > >
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