12 Replies Latest reply on Sep 17, 2018 10:06 AM by Ronald_Intel

    Intel Graphics 630: Audio drop outs because of slow dxgkrnl.sys?

    NI-komplete

      Hi,

      referring to this thread : Intel Graphics 630: Audio drop outs because of slow dxgkrnl.sys

      I have the same problem. Here the latencymon conclusion:

       

      CONCLUSION

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      Your system seems to be having difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. 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 0:10:07 (h:mm:ss) on all processors.

       

       

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      SYSTEM INFORMATION

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      Computer name: PEPPERBOX-2017

      OS version: Windows 10 , 10.0, build: 16299 (x64)

      Hardware: Z370 HD3P, Gigabyte Technology Co., Ltd., Z370 HD3P-CF

      CPU: GenuineIntel Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz

      Logical processors: 12

      Processor groups: 1

      RAM: 32641 MB total

       

       

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      CPU SPEED

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      Reported CPU speed: 3696 MHz

      Measured CPU speed: 1 MHz (approx.)

       

      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.

       

      WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.

       

       

       

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      MEASURED INTERRUPT TO USER PROCESS LATENCIES

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      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): 1888,414538

      Average measured interrupt to process latency (µs): 2,307985

       

      Highest measured interrupt to DPC latency (µs): 1886,475145

      Average measured interrupt to DPC latency (µs): 0,910350

       

       

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      REPORTED ISRs

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      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): 7,390693

      Driver with highest ISR routine execution time: Wdf01000.sys - Kernelmodustreiber-Frameworklaufzeit, Microsoft Corporation

       

      Highest reported total ISR routine time (%): 0,000850

      Driver with highest ISR total time: Wdf01000.sys - Kernelmodustreiber-Frameworklaufzeit, Microsoft Corporation

       

      Total time spent in ISRs (%) 0,000850

       

      ISR count (execution time <250 µs): 53635

      ISR count (execution time 250-500 µs): 0

      ISR count (execution time 500-999 µs): 0

      ISR count (execution time 1000-1999 µs): 0

      ISR count (execution time 2000-3999 µs): 0

      ISR count (execution time >=4000 µs): 0

       

       

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      REPORTED DPCs

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      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): 1901,724026

      Driver with highest DPC routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

       

      Highest reported total DPC routine time (%): 0,060210

      Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

       

      Total time spent in DPCs (%) 0,139651

       

      DPC count (execution time <250 µs): 2186887

      DPC count (execution time 250-500 µs): 0

      DPC count (execution time 500-999 µs): 69

      DPC count (execution time 1000-1999 µs): 997

      DPC count (execution time 2000-3999 µs): 0

      DPC count (execution time >=4000 µs): 0

       

       

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      REPORTED HARD PAGEFAULTS

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      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.

       

       

      Process with highest pagefault count: none

       

      Total number of hard pagefaults 0

      Hard pagefault count of hardest hit process: 0

      Highest hard pagefault resolution time (µs): 0,0

      Total time spent in hard pagefaults (%): 0,0

      Number of processes hit: 0

       

       

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      PER CPU DATA

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      CPU 0 Interrupt cycle time (s): 21,605090

      CPU 0 ISR highest execution time (µs): 7,390693

      CPU 0 ISR total execution time (s): 0,061828

      CPU 0 ISR count: 53596

      CPU 0 DPC highest execution time (µs): 1901,724026

      CPU 0 DPC total execution time (s): 9,546958

      CPU 0 DPC count: 1973889

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      CPU 1 Interrupt cycle time (s): 2,2040

      CPU 1 ISR highest execution time (µs): 1,982684

      CPU 1 ISR total execution time (s): 0,000053

      CPU 1 ISR count: 39

      CPU 1 DPC highest execution time (µs): 238,416667

      CPU 1 DPC total execution time (s): 0,024130

      CPU 1 DPC count: 9580

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      CPU 2 Interrupt cycle time (s): 2,370743

      CPU 2 ISR highest execution time (µs): 0,0

      CPU 2 ISR total execution time (s): 0,0

      CPU 2 ISR count: 0

      CPU 2 DPC highest execution time (µs): 238,054113

      CPU 2 DPC total execution time (s): 0,055531

      CPU 2 DPC count: 26406

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      CPU 3 Interrupt cycle time (s): 2,262050

      CPU 3 ISR highest execution time (µs): 0,0

      CPU 3 ISR total execution time (s): 0,0

      CPU 3 ISR count: 0

      CPU 3 DPC highest execution time (µs): 237,731061

      CPU 3 DPC total execution time (s): 0,022925

      CPU 3 DPC count: 10110

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      CPU 4 Interrupt cycle time (s): 2,379442

      CPU 4 ISR highest execution time (µs): 0,0

      CPU 4 ISR total execution time (s): 0,0

      CPU 4 ISR count: 0

      CPU 4 DPC highest execution time (µs): 237,978355

      CPU 4 DPC total execution time (s): 0,062375

      CPU 4 DPC count: 27149

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      CPU 5 Interrupt cycle time (s): 2,257183

      CPU 5 ISR highest execution time (µs): 0,0

      CPU 5 ISR total execution time (s): 0,0

      CPU 5 ISR count: 0

      CPU 5 DPC highest execution time (µs): 237,472944

      CPU 5 DPC total execution time (s): 0,023131

      CPU 5 DPC count: 10271

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      CPU 6 Interrupt cycle time (s): 2,326159

      CPU 6 ISR highest execution time (µs): 0,0

      CPU 6 ISR total execution time (s): 0,0

      CPU 6 ISR count: 0

      CPU 6 DPC highest execution time (µs): 237,364177

      CPU 6 DPC total execution time (s): 0,051544

      CPU 6 DPC count: 19876

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      CPU 7 Interrupt cycle time (s): 2,444953

      CPU 7 ISR highest execution time (µs): 0,0

      CPU 7 ISR total execution time (s): 0,0

      CPU 7 ISR count: 0

      CPU 7 DPC highest execution time (µs): 237,205628

      CPU 7 DPC total execution time (s): 0,055153

      CPU 7 DPC count: 19537

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      CPU 8 Interrupt cycle time (s): 2,397953

      CPU 8 ISR highest execution time (µs): 0,0

      CPU 8 ISR total execution time (s): 0,0

      CPU 8 ISR count: 0

      CPU 8 DPC highest execution time (µs): 236,958333

      CPU 8 DPC total execution time (s): 0,093960

      CPU 8 DPC count: 30159

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      CPU 9 Interrupt cycle time (s): 2,341886

      CPU 9 ISR highest execution time (µs): 0,0

      CPU 9 ISR total execution time (s): 0,0

      CPU 9 ISR count: 0

      CPU 9 DPC highest execution time (µs): 236,778680

      CPU 9 DPC total execution time (s): 0,035780

      CPU 9 DPC count: 12227

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      CPU 10 Interrupt cycle time (s): 2,444271

      CPU 10 ISR highest execution time (µs): 0,0

      CPU 10 ISR total execution time (s): 0,0

      CPU 10 ISR count: 0

      CPU 10 DPC highest execution time (µs): 236,566558

      CPU 10 DPC total execution time (s): 0,141256

      CPU 10 DPC count: 34591

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      CPU 11 Interrupt cycle time (s): 2,299666

      CPU 11 ISR highest execution time (µs): 0,0

      CPU 11 ISR total execution time (s): 0,0

      CPU 11 ISR count: 0

      CPU 11 DPC highest execution time (µs): 236,293290

      CPU 11 DPC total execution time (s): 0,059410

      CPU 11 DPC count: 14158

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      So the dxgkrnl.sys is at 1,9ms.
      I also changed the USB-Ports, cable and have done all the win 10 optimisation steps for audio seen on this side:Troubleshooting DPC latency – Focusrite Audio Engineering
      But everythings fails.

       

      Is it an option to update the driver ? I use an Focusrite Scarlett 2i2 (2nd. Generation) USB Adiointerface.

       

      Thanks for help
      Bernd