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Question
Sunday, March 3, 2019 2:31 AM
Sorry for the kind of long post, but I wanted to detail what I had done so far to fix the issue.
Under almost any sort of high stress situation, as far as I can tell, my computer will experience System Interrupts at 100% which is causing periods of unresponsiveness. I first noticed this during a 3D application. Playing certain games on the system was causing it to sometimes happen. So I figured it might be a video card driver issue, those certainly aren't uncommon and there was a new one available. So I updated it, and that didn't solve the issue. I tried rolling back to a previous driver as well with no luck.
So I moved on to audio drivers. I'm just using a Realtek driver for my built in motherboard's sound chip. I already had the latest on my motherboard's website but just for the heck of it I also checked the motherboard's auto updating program which said there was a new one, so I updated that. That caused other issues, so I removed that and tried uninstalling all Realtek provided drivers and just using the driver provided by Windows. None of that solved the issue.
So I figured I'd do some actual investigation, since that didn't seem to be doing anything. Running LatencyMon gave me results that looked as such: https://i.imgur.com/kgRjfvG.png & https://i.imgur.com/MYgYuVy.png
So since it said ndis.sys was the main issue I was thinking it was a network driver. Alrighty. I tried uninstalling my current Realtek based network drivers and using the built in Windows ones. No luck. I tried getting the most recent ones from my motherboard manufacturer. That also didn't make any noticeable change as far as I can tell.
So now I'm at a bit of a loss as to what to do next. Here is a Windows Performance Recorder log of my CPU usage while playing a game to try to stress it out a bit. https://1drv.ms/u/s!Auq86rK4wcZimjlsLzr5_RsK1Nu4 It certainly *seems* to have caused the issue during this time, but I'm a little lost as to what to do now.
Even while uploading the WPR log my system interrupts bumped up to 97% usage for a bit. I had no sound or 3D application running at the time, so it does seem quite possible for it to be a network driver issue I suppose.
One last thing of note is that whenever I open up Task Manager to check my System Interrupts it seems to calm down quite quickly. I'm guessing because it's putting less resources into the game or other process due to it no longer being the focus, but that's just a guess.
- iNfeRnO -
All replies (8)
Sunday, March 3, 2019 7:38 AM | 1 vote
In your trace I see the CPU usage of the game (Paladins) going down, explorer is constantly using 30%, and up to 57%.
But I don't see high system interrupts (system is only using 1%).
From the explorer call stack: it is runnning a search / displaying a search result?
(calling methods in Windows.Storage.Search)
Btw.: your system is on a mechanical drive: the performance of your system will never be optimal.
Sunday, March 3, 2019 11:05 AM
I didn't do any searches during that time that I can recall, so that's odd.
I was dumb and didn't actually open up task manager while running the trace itself. I was experiencing stuttering, and since every single other time while doing this troubleshooting I've experienced that exact same stuttering I would open up task manager and see System Interrupts at 100% I simply assumed I had caught it doing it again.
I'll run another trace, doing absolutely as few other things as possible to keep it as clean as I can, and double check to make absolutely sure System Interrupts does its thing this time. I'm sorry for my mistake with the last scan.
On the mechanical drive point. Yeah. Getting my OS installed onto an SSD is top of my list during my next hardware upgrade, just, well it all costs money.
- iNfeRnO -
Monday, March 4, 2019 6:07 AM
Hi,
Please refer to the this link fix the issue:
System interrupts high CPU usage in Windows 10
https://www.thewindowsclub.com/system-interrupts-high-cpu-usage-in-windows-10
Note: This is a third-party link and we do not have any guarantees on this website. And Microsoft does not make any guarantees about the content.
Hope these are helpful.
Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].
Wednesday, March 6, 2019 2:20 AM
I had already tried the majority of the suggestions in the linked thread, but hadn't actually done a memory check yet. Thanks cloris_sun. I have now done so and it came back clean with no errors so I wasn't able to track down the issue there unfortunately.
I have now done what should be a more successful trace. It is here: https://1drv.ms/u/s!Auq86rK4wcZimnig_3v3_TchENA3
During this trace I managed to also grab a screenshot to display that for sure System Interrupts had gone up to 100% during this time. The trace is less than 2 minutes long I just happened to nail it and get it right at the perfect time, which should hopefully help make diagnosing the issue simpler. This is the screenshot of System Interrupts at 100%: https://1drv.ms/u/s!Auq86rK4wcZimncyvou-o1hu5RM8
Sorry for the poor trace previously and I definitely appreciate any further assistance in tracking down this problem.
- iNfeRnO -
Wednesday, March 6, 2019 5:45 PM | 1 vote
I see the "100% by system interrupts" in your screenshot, but can not find such a high ISR usage in the trace.
Perhaps someone else can analyze the trace, seems I don't understand as much as I thought.
Wednesday, March 13, 2019 8:36 AM
After a number of other tests it seems like the issue might be solved, or at least reasonably alleviated, by disabling Windows Firewall... but I'm not exactly comfortable running my machine with Windows Firewall always turned off. So it would be nice if I could figure out exactly why that is fixing the issue...
- iNfeRnO -
Edit: Nevermind. Didn't solve it. I just happened to run into an hour of not having the issue and it got my hopes up. Still might have lessened it but hard to know for sure.
Thursday, March 28, 2019 9:57 AM
Hi,
If you figure out this issue, would you like to share your solution in order that other community members could find the helpful reply quickly?
Thanks for your understanding.
Please remember to mark the replies as answers if they help.
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Thursday, October 24, 2019 4:44 PM
Hi iNfeRnO,
Did you happen to figure your issue out? I have been having the exact same issue and have been unable to correct it thus far. It would be an incredible help if you could let me know.
Thanks!