Question / Help Peculiar OBS Slowdown in fresh 6-core Intel system PLEASE HELP

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BlackDahlia1147

Member
So just this Wednesday I upgraded to an Intel i7 6800K 6 core processor for streaming on Twitch. I've been using an i7 4770K for a few years and I found performance lacking especially when paired with my GTX 1080. Anyways, the issue here is that when playing *any* game the OBS program window visibly stutters heavily I'm talking like 0.5 to 1.0 seconds between frames. My CPU in Task Master is barely going about 44% usage, not getting even close to 16 GB of ram usage, GPU isn't stressed, ingame framerate is 200 FPS... and OBS is struggling to get 34 FPS. This is insanely frustrating as digging around the log files shows that there isn't anything outright breaking *but* there is a huge amount of latency happening in the OBS profiler that is unexplainable at least to me. This has been an issue plaguing me forever on Windows 10 but now I'm just pissed because it shouldn't even be phasing me right now with this beast of a processor (overclocked to 4.3 GHz myself). Any help/info would be GREATLY appreciated <3
 

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Osiris

Active Member
There's no glitch like that in OBS, it could just be that the GPU is in the wrong slot and not running at x16.
 
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BlackDahlia1147

Member
It is in the right slot and it is running at x16 >.> my build is solid here's the screenshot in GPUZ http://gpuz.techpowerup.com/16/10/08/nkw.png

and for good measure, here's my CPUZ validation to show you that I know what I'm on about XD I've used OBS for over two years I would love to work with you as best I can to reach a solution or at least an answer for this behavior http://valid.x86.fr/xejlxg I have the newest bios, newest drivers for all my motherboard stuff, CPU is overclocked to 4.3 GHz GPU is overclocked to 2125 MHzish, RAM is 16 GB of DDR4 RAM at 2666MHz, OS is Windows 10 newest Anniversary Update, etc.

I can give you greater details in Speccy if you like or whatever else you would like to discuss. I've been bashing my head against a wall for two days now with this issue trying everything I can in OBS to tweak and fix it to no avail. Please let's talk about this like peers rather than someone's first day using OBS I want to figure out what the problem is here. This system is less than 3 days old with a fresh copy of windows 10 Anniversary Edition
 
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BlackDahlia1147

Member
also @xSonic521x do you have a link anywhere as proof to this? I would rather avoid uninstalling Synapse if possible as that would mean having my DPI lower ;_; but thanks for the heads up, man, I'll look into this to see if it has any issue :)
 
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Flare

New Member
BlackDahlia1147 said:
also @xSonic521x do you have a link anywhere as proof to this? I would rather avoid uninstalling Synapse if possible as that would mean having my DPI lower ;_; but thanks for the heads up, man, I'll look into this to see if it has any issue :)
Click to expand...

Try seeing if your problem goes away with OBS Classic. I've had similar problems and going back to classic fixed it. It's worth a shot for a comparison.
 
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BlackDahlia1147

Member
Whatever the issue is, it makes my OBS lag up something fierce, I'm talking like half second to full second intervals between window refreshes. And I may try that out @xSonic521x but I've never really had issue myself and my framerate so far has been exceptional on this new rig aside from OBS. Unless you're thinking Synapse is interfering with OBS perhaps?
 
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BlackDahlia1147

Member
@Flare I'll try that right now! I'll do my best to build my scenes like they currently are and I'm installing the 64 bit version now which I've never used before (I always used 32 bit)
 
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BlackDahlia1147

Member
Something I did notice in the Classic log file is that it only reads 4GB of RAM present in my system. Checked with Speccy and Task Manager and they both report 16 GB idk if that's important here though, could just be a Classic bug
 
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Osiris

Active Member
You seem to be overloading your GPU, enable V-sync in Overwatch, or limit the fps to 60fps.
Downloading frames from the GPU is taking way too long, this should be atleast below 16.667ms to achieve 60fps:

download_frame: min=0 ms, median=11.359 ms, max=65.14 ms, 99th percentile=44.127 ms

obs_video_thread(16.6667 ms): min=2.458 ms, median=16.669 ms, max=125.871 ms, 40.7407% within ±2% of 16.667 ms (10.9091% lower, 48.3502% higher)
 
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BlackDahlia1147

Member
I set Overwatch to 60 FPS ingame and it still had the same issue. Current fix has been to disable the OBS Studio Preview to get back to smooth framerates. No other fixes have worked for me besides this one. Currently, I'm satisfied as it's only a problem as long as the preview is active so I can toggle it on/off all I need to :) Hopefully someone else stumbles upon this thread and disabling the preview helps them too
 
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BlackDahlia1147

Member
False alarm, with the preview off, I tried running some tests in the Metro Last Light Reduces benchmark. Framerate in OBS dipped and my sound died spectacularly partway into the test. Audio cut out then slowly some sound noise grew and became unreasonably loud D: what the hell? This was also only present in the very first test run, not the other 4 runs of the benchmark
 
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