Question / Help Tried it all and now I am here.

J_Hallin

New Member
So same story different guy. Stream starts out fine and then starts dropping frames. My internet is 20 up and 80 down. I am running a 3570k @ 4.2 and have a 7950. If you need any other details please ask.

Here is my log:
 

ZagatoMKR

Member
"The requested attachment could not be found."

Partnered on Twitch? Wired internet? Are you streaming games that are CPU heavy?
Non partner = 3500 max bitrate
Streaming = uses CPU a lot
Gaming = Uses CPU a lot (depending on the game)

Solution: Try lower OBS settings (720p @ 30 fps, 3500 max bitrate, faster or veryfast CPU preset and monitor CPU usage).

Cheers.
 

J_Hallin

New Member
Not partnered. Just started.

Yes internet is wired.

Game is cpu heavy. It is iRacing. But I can at times stream for an hour or more with no problems. I also wanted to add that I tried to seperate the cores as well. iRacing only utilizes two cores anyways so I set two to iRacing and the other two to obs. But I can at times stream for an hour or more with no problems. Max cpu % I see while playing/streaming is 88 most of the time it is around 50 to 70.

I have ran those settings. Preset is currently at veryfast. I have run as low as 1200 max with 720@27 and have the same problem. Thanks for the help.
 

ZagatoMKR

Member
https://obsproject.com/analyzer

Faster preset in use

You have changed the default preset to superfast. The default of veryfast is designed for the optimum balance of quality and CPU usage. Using superfast will result in greatly reduced quality. If possible, try to change other things such as lowering the resolution or FPS before modifying the preset.

Monitor capture detected

One of your scenes appears to be using monitor capture. Monitor capture is the slowest and least efficient method of capturing, and can cause FPS lag on both your stream and your game and will also cause problems capturing full-screen games. Consider using game capture or window capture instead (this does not apply to Windows 8).

Monitor capture with Aero enabled

You are using monitor capture with Aero enabled. This will cause severe performance degradation. If you absolutely must use monitor capture, disable Aero from video settings (this does not apply to Windows 8).

Dropped frames detected

11% of your frames were dropped due to poor network conditions. Frames are dropped when data can not be sent fast enough to the server you have selected. This is caused by trying to stream at too high of a bitrate, or by the streaming server you selected not being able to accept the data at the rate you are sending.

Try switching servers, especially if you are using twitch.tv. As a test, you could also try streaming to a different provider to check whether the problem is on your end or not.

Note that some ISPs will temporarily increase your upload speed at the start of a transfer - if you only start to drop frames after 30 - 60 seconds, your ISP is likely doing this and you will need to use a lower bitrate.

Finally, if you are using a wireless connection, keep in mind that interference from other radio sources can cause your connection to stutter and drop frames. A wired connection is strongly recommended when streaming.

See https://obsproject.com/forum/viewtopic.php?f=5&t=8870 for more advice on how to fix dropped frames.

Possible slow server

The server you are streaming to (rtmp://live-lax.twitch.tv/app) took 785 ms to connect. This may mean your connection or the server is slow, or the server is far away from you. If you are using twitch.tv, you may want to try using JTVPing to find an optimal server.

Late frames detected

41.20% of your frames are late. This means the frames are being generated later than they were needed, causing your stream FPS to drop. Late frames are often caused by slow sources such as monitor capture, slow video capture devices or by trying to run your stream at too high of a resolution / FPS.

If you are using a webcam, try to lower the resolution of it. If you are using monitor capture, try switching to game source or window capture. If you must use monitor capture, ensure Aero is disabled.

You can also try lowering the resolution or FPS of your stream if you have an older CPU.

See https://obsproject.com/forum/viewtopic.php?f=5&t=11641 for more information on how to resolve this issue.

Low frame rate detected

Your stream is taking an average of 52.298 milliseconds to render a frame. This limits your maximum FPS to around 19 FPS. The most common reason for long frame rendering times are:

  • Using monitor capture
  • Using slow devices such as webcams running at 1080p
  • Not enough CPU/GPU resources available for OBS
  • Running your stream at too high of a resolution / FPS for your computer to handle

    See https://obsproject.com/forum/viewtopic.php?f=5&t=11641 for more information on how to resolve this issue.
    Connection stalls detected

    Your connection is stalling while sending data. This can result in frame drops, stream freezes and disconnects. Try changing the server you are streaming to, or lowering your bitrate
 

J_Hallin

New Member
Thank you for all the info. I only use monitor capture when I am out of game and want to show my viewers something on my screen. So it is normally off when I am streaming in game. Edit: Actually now that I think about it is might have been left on during some streaming. Which would explain why most of my session were at the 27fps I selected except for those sessions I ran with the window capture accidentally on in the background.

I also used Glasnost to test if my isp is shaping: http://glasnost.mpi-sws.org//bb/glasnost.php?protocol1=BitTorrent&protocol2=control flow&port=6881&port2=47266&dir=0;1&flow0=19490;16053;16535&flow1=17239;20391;20896&flow2=20073;20512;19974&flow3=20024;20551;20595&flow4=43192;38273;35403&flow5=41220;41680;21403&flow6=21732;20199;20327&flow7=23929;19089;19164&details=yes

When done with the test it said my isp was not shaping. Test ran for 5 minutes.

Let me know if that link doesnt work I can take a screenshot. I thought these two pieces of info might be of use to you. Thanks again.
 
Last edited:

J_Hallin

New Member
So I am pretty sure the problem is Twitch. I went to YouTube and had no problems 4000 kb/s @ 30fps for over 50 minutes. Here is my log. I switched from Twitch to YouTube on this log. What is weird is when I am streaming twitch and run the iRacing.exe and the stream starts to falter after I quit iRacing my upload will stabilize. Again on YouTube I have yet to drop a single frame.
 

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