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System Interrupts 100% CPU when trying to stream with OBS + freeze
This problem started in early February. Before then, I could stream to Facebook Gaming to my heart's content. However, now I am unable to stream on the very same PC that I used to be able to.
Problem is, about two minutes into the stream, a process named "System Interrupts" starts using 100% CPU and about another 30 seconds, my entire system freezes. The only way I can unfreeze my system is by holding the power button to force shut off my PC.
I have NOT made any changes to my PC since OBS was working even for six hour streams other than the normal Windows updates.
A bit of Googling around suggests that it is almost always a driver problem. Basically every website said that. So, I tried installing literally every driver that was listed in Windows Update yet the problem persists. I still get System Interrupts spiking to 100% CPU followed by a system freeze just a couple minutes into the stream. The only thing that I have not updated are my Nvidia drivers but I am 100% sure that it is not the fault of the Nvidia drivers as it is the same version of Nvidia drivers when I was streaming with no issues in January.
I can game with no issues as long as I am NOT streaming them. This includes resource heavy games like Need for Speed: Heat. Now I cannot even throw on an SNES emulator and stream that without System Interrupts spiking to 100% CPU and freezing my PC. I used to be able to stream Final Fantasy XIV which is a fairly resource intensive game without issues and only utilizing 20% CPU.
I already asked the guys over at OBS support and all that they could tell me is that while OBS can trigger these system freezes, the system freeze itself is outside OBS, thus they cannot provide any help in resolving the issue. So I am asking here.
I am using the latest version of OBS Studio and I already ran sfc /scannow and check disk and both pass with flying colors.
I checked the event viewer but I did not see anything out of the ordinary other than the forced shut off attempt
My PC is an HP Envy 17 j177nr with 16 GB ram.
Does anybody know how I can remedy this so I can stream again
Edit: Output of LatencyMon while trying to stream:
Code:_________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates. LatencyMon has been analyzing your system for 0:21:22 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: SWG-STREAMING OS version: Windows 10, 10.0, version 2009, build: 19042 (x64) Hardware: HP ENVY 17 Notebook PC, Hewlett-Packard CPU: GenuineIntel Intel(R) Core(TM) i7-4710MQ CPU @ 2.50GHz Logical processors: 8 Processor groups: 1 RAM: 16316 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 2494 MHz Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results. _________________________________________________________________________________________________________ MEASURED INTERRUPT TO USER PROCESS LATENCIES _________________________________________________________________________________________________________ The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event. Highest measured interrupt to process latency (µs): 2143.30 Average measured interrupt to process latency (µs): 8.958971 Highest measured interrupt to DPC latency (µs): 2126.10 Average measured interrupt to DPC latency (µs): 2.732665 _________________________________________________________________________________________________________ REPORTED ISRs _________________________________________________________________________________________________________ Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal. Highest ISR routine execution time (µs): 180.708901 Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation Highest reported total ISR routine time (%): 0.000439 Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation Total time spent in ISRs (%) 0.000918 ISR count (execution time <250 µs): 20643 ISR count (execution time 250-500 µs): 0 ISR count (execution time 500-1000 µs): 0 ISR count (execution time 1000-2000 µs): 0 ISR count (execution time 2000-4000 µs): 0 ISR count (execution time >=4000 µs): 0 _________________________________________________________________________________________________________ REPORTED DPCs _________________________________________________________________________________________________________ DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution. Highest DPC routine execution time (µs): 2140.962310 Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 461.09 , NVIDIA Corporation Highest reported total DPC routine time (%): 0.011229 Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation Total time spent in DPCs (%) 0.041123 DPC count (execution time <250 µs): 544105 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-10000 µs): 186 DPC count (execution time 1000-2000 µs): 4 DPC count (execution time 2000-4000 µs): 1 DPC count (execution time >=4000 µs): 0 _________________________________________________________________________________________________________ REPORTED HARD PAGEFAULTS _________________________________________________________________________________________________________ Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution. NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit. Process with highest pagefault count: latmon.exe Total number of hard pagefaults 791 Hard pagefault count of hardest hit process: 265 Number of processes hit: 17 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 15.444808 CPU 0 ISR highest execution time (µs): 180.708901 CPU 0 ISR total execution time (s): 0.087613 CPU 0 ISR count: 16762 CPU 0 DPC highest execution time (µs): 2140.962310 CPU 0 DPC total execution time (s): 3.052049 CPU 0 DPC count: 430557 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 3.234847 CPU 1 ISR highest execution time (µs): 11.445469 CPU 1 ISR total execution time (s): 0.000447 CPU 1 ISR count: 352 CPU 1 DPC highest execution time (µs): 285.510425 CPU 1 DPC total execution time (s): 0.016327 CPU 1 DPC count: 2739 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 6.811451 CPU 2 ISR highest execution time (µs): 14.986768 CPU 2 ISR total execution time (s): 0.002581 CPU 2 ISR count: 1196 CPU 2 DPC highest execution time (µs): 1531.976744 CPU 2 DPC total execution time (s): 0.753913 CPU 2 DPC count: 64491 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 4.003406 CPU 3 ISR highest execution time (µs): 13.783079 CPU 3 ISR total execution time (s): 0.000694 CPU 3 ISR count: 562 CPU 3 DPC highest execution time (µs): 350.465918 CPU 3 DPC total execution time (s): 0.019147 CPU 3 DPC count: 3143 _________________________________________________________________________________________________________ CPU 4 Interrupt cycle time (s): 3.653480 CPU 4 ISR highest execution time (µs): 16.478749 CPU 4 ISR total execution time (s): 0.000956 CPU 4 ISR count: 562 CPU 4 DPC highest execution time (µs): 206.621893 CPU 4 DPC total execution time (s): 0.074995 CPU 4 DPC count: 10533 _________________________________________________________________________________________________________ CPU 5 Interrupt cycle time (s): 4.491526 CPU 5 ISR highest execution time (µs): 14.144346 CPU 5 ISR total execution time (s): 0.001050 CPU 5 ISR count: 731 CPU 5 DPC highest execution time (µs): 418.188853 CPU 5 DPC total execution time (s): 0.171451 CPU 5 DPC count: 16449 _________________________________________________________________________________________________________ CPU 6 Interrupt cycle time (s): 3.432129 CPU 6 ISR highest execution time (µs): 14.006816 CPU 6 ISR total execution time (s): 0.000561 CPU 6 ISR count: 328 CPU 6 DPC highest execution time (µs): 416.880513 CPU 6 DPC total execution time (s): 0.095382 CPU 6 DPC count: 12131 _________________________________________________________________________________________________________ CPU 7 Interrupt cycle time (s): 3.799651 CPU 7 ISR highest execution time (µs): 14.519647 CPU 7 ISR total execution time (s): 0.000241 CPU 7 ISR count: 150 CPU 7 DPC highest execution time (µs): 366.068565 CPU 7 DPC total execution time (s): 0.035833 CPU 7 DPC count: 4253 _________________________________________________________________________________________________________
Last edited by Ornithophilia; 23 Feb 2021 at 18:03.
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