Performance issue on multiclient connections

[Devirex]

If have done some measurements and did recognize some performance issues. I hope that there is some internal buffer or datastructure which is limiting the performance. Here is what i found:

Source is a rtsp stream delivered by an ipcam: Resolution 1280x720 FPS: 25 Bitrate: 4096 kbps Keyframe Interval: 50 All traffic is transmitted over WIFI (30 Mbps / 30000 kbps overall bandwith)

RTSPtoWebRTC is running on a homeserver with an Intel Pentium G4400 @ 3.3 GHz

Table is showing if stream is running smooth or not :

Source Bitrate	Client 1	Client 2	Client 3	Overall Bandwith
4096	ok (7-10% CPU)	1 second freezes (13% CPU)	All Clients freeze (15% CPU)	16 Mbps
2048	ok (7% CPU	ok (9% CPU)	5-10 sec freezes all Clients (10% CPU)	8 Mbps
1024	ok ( 7% CPU)	ok (8% CPU)	1 second freezes (13% CPU)	4 Mbps
512	ok (5% CPU)	ok (7% CPU)	ok ( 8-10% CPU)	2 Mbps