srs As the playing time gets longer, the delay also gets longer---help needed

[ghost]

Hi, the environment is as follows: One origin server and one edge server. The broadcaster pushes the stream to the origin server, and the edge server pulls the stream from the origin. We used sb_rtmp_load_fast to stress test 500 clients to the edge server, while also opening a webpage window to play the stream from the edge server. The bandwidth of the edge server only reached 50M/s, even though it has a gigabit network card. Initially, the delay was around 1.2 seconds, but after 30 minutes, it reached 5 seconds. After one hour, it reached a delay of 39 seconds.

I would like to ask, what could be the problem? The player used is http://ossrs.net/srs.release/trunk/research/players/srs_player.html?server=192.168.116.139&vhost=192.168.116.139#.

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[ghmack]

RTMP does not have a time synchronization verification mechanism, so any program, system, or network-related lag will result in increasing delays. To achieve minimal lag, optimization should be done from both the pusher and receiver ends.

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[winlinvip]

What is the bandwidth speed to the edge of the player? Also, you have to keep watching the streamer continuously, you can't switch to other pages.

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[ghost]

hi，播放器到边缘的带宽测速是百兆宽带。。主播就是我自己，，主播和播放器在同一台机器上。。。。我用手机的秒表测试出来的。求答案

[winlinvip]

Try changing the server and network, I have never heard of this issue before, I used to play for a long time without encountering it.

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[liutao6982]

If there is network jitter, it can indeed lead to buffering and thus cause an increase in latency. However, it is usually the client that experiences the buffering.

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[wanghuan578]

Enabling gof_cache will solve the issue of delayed accumulation.

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[LF-DevJourney]

I use ffplay with the nobuffer setting ffplay -fflags nobuffer rtmp://192.168.1.66/myapp/live, but there is still an issue of accumulating delay. Initially, there is less than a second of delay, but after half an hour, it increases to over 2 seconds. If I stop ffplay and execute the above command again, the accumulated delay disappears, but it reappears after a while.

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[watchpoints]

How to solve it?

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[winlinvip]

Client problem.

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