Windows 10 v1903 - ntoskrnl.exe & ISR/DPC latency spikes

Anonymous
2019-05-31T18:33:50+00:00

Hi,

After updating to 1903 LatencyMon associates ntoskrnl.exe with large latency spikes on the order of ~1,300µs. Same results with KB4497935.

I posted here too as I thought it could be related to the GPU driver:

https://forums.geforce.com/default/topic/1120890/geforce-drivers/win10-ver-1903-ntoskrnl-exe-large-latency-spikes-/

Others are also reporting similar symptoms. E.g. in some instances this results in noticeable audio clicks/pops.

https://www.reddit.com/r/Windows10/comments/bu34xv/update_1903_high_dpc_latency_issues/

Are you seeing similar results?

Does anyone at Microsoft acknowledge this?

It should be easily reproducible.

Thanks,

Howard

SOLUTION:

KB4505903 seems to have significantly mitigated the ntoskrnl.exe latency spikes for many users.

Windows for home | Windows 10 | Performance and system failures

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2019-07-05T02:47:09+00:00

    Having the same issue here, unfortunately. Hoping for a quick fix, really hurting audio production!

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  2. Anonymous
    2019-07-03T13:31:35+00:00

    Thanks for that.It seems that MS,driver vendors and computer manufacturers are not on the same page with 1903.This why 1903 is a nightmare to troubleshoot.

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  3. Anonymous
    2019-07-03T13:15:14+00:00

    Indirectly I am. but they are stutters that are caused by the high latency audio popping and clicking. it just doesn't pop and click, it stutters anything that is using the audio. I notice the problem gets worse when I am doing anything streaming heavily and it alleviates a lot when i disable the network driver completely.. which is the only way I am able to do music nowadays

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  4. Anonymous
    2019-07-02T20:31:19+00:00

    Are any of you seeing FPS Drops?

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  5. Anonymous
    2019-07-02T20:16:17+00:00

    They probably didn't even acknowledged the issue still.

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