11 Replies Latest reply on Jan 4, 2018 7:44 PM by Intel Corporation

    Audio stutter and system freezing with Intel I350-T4V2

    Rewritten

      Hello everyone,

      I am having an issue with my music, videos, games and general system usage coming to a brief halt every so often by high DPC reported by driver tcpip.sys, which I believe is to be related to the Intel I350-T4V2 NIC that I have in my system. This is the report from LatencyMon that was generated after nine minutes of it running:

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      CONCLUSION

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      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  0:09:15  (h:mm:ss) on all processors.

       

       

       

       

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      SYSTEM INFORMATION

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      Computer name:                                        STEVEN-DT

      OS version:                                           Windows 10 , 10.0, build: 15063 (x64)

      Hardware:                                             ASRock, Z370 Gaming K6

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

      Logical processors:                                   12

      Processor groups:                                     1

      RAM:                                                  32701 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):   64369.038961

      Average measured interrupt to process latency (µs):   5.038917

       

       

      Highest measured interrupt to DPC latency (µs):       64365.437229

      Average measured interrupt to DPC latency (µs):       1.360576

       

       

       

       

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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):              92.833333

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

       

       

      Highest reported total ISR routine time (%):          0.100551

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

       

       

      Total time spent in ISRs (%)                          0.122042

       

       

      ISR count (execution time <250 µs):                   864900

      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):              75280.324134

      Driver with highest DPC routine execution time:       tcpip.sys - TCP/IP Driver, Microsoft Corporation

       

       

      Highest reported total DPC routine time (%):          0.043887

      Driver with highest DPC total execution time:         nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 388.31 , NVIDIA Corporation

       

       

      Total time spent in DPCs (%)                          0.135294

       

       

      DPC count (execution time <250 µs):                   3095769

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

      DPC count (execution time 500-999 µs):                1

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

      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):                       21.807476

      CPU 0 ISR highest execution time (µs):                92.833333

      CPU 0 ISR total execution time (s):                   8.127851

      CPU 0 ISR count:                                      864377

      CPU 0 DPC highest execution time (µs):                418.928030

      CPU 0 DPC total execution time (s):                   7.968359

      CPU 0 DPC count:                                      2881669

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      CPU 1 Interrupt cycle time (s):                       5.576597

      CPU 1 ISR highest execution time (µs):                18.037338

      CPU 1 ISR total execution time (s):                   0.000633

      CPU 1 ISR count:                                      523

      CPU 1 DPC highest execution time (µs):                156.160173

      CPU 1 DPC total execution time (s):                   0.031753

      CPU 1 DPC count:                                      2473

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      CPU 2 Interrupt cycle time (s):                       3.872798

      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):                111.264610

      CPU 2 DPC total execution time (s):                   0.109259

      CPU 2 DPC count:                                      30866

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      CPU 3 Interrupt cycle time (s):                       3.914723

      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):                75280.324134

      CPU 3 DPC total execution time (s):                   0.213586

      CPU 3 DPC count:                                      3120

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      CPU 4 Interrupt cycle time (s):                       4.130378

      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):                127.520022

      CPU 4 DPC total execution time (s):                   0.120647

      CPU 4 DPC count:                                      40343

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      CPU 5 Interrupt cycle time (s):                       3.761527

      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):                83.285173

      CPU 5 DPC total execution time (s):                   0.004639

      CPU 5 DPC count:                                      1086

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      CPU 6 Interrupt cycle time (s):                       4.832866

      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):                101.324675

      CPU 6 DPC total execution time (s):                   0.199118

      CPU 6 DPC count:                                      46428

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      CPU 7 Interrupt cycle time (s):                       3.556605

      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):                82.946970

      CPU 7 DPC total execution time (s):                   0.003708

      CPU 7 DPC count:                                      596

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      CPU 8 Interrupt cycle time (s):                       3.937102

      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):                136.426407

      CPU 8 DPC total execution time (s):                   0.144712

      CPU 8 DPC count:                                      39441

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      CPU 9 Interrupt cycle time (s):                       3.597930

      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):                82.416126

      CPU 9 DPC total execution time (s):                   0.014064

      CPU 9 DPC count:                                      6686

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      CPU 10 Interrupt cycle time (s):                       4.082868

      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):                122.268939

      CPU 10 DPC total execution time (s):                   0.162320

      CPU 10 DPC count:                                      36323

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      CPU 11 Interrupt cycle time (s):                       3.982992

      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):                81.980519

      CPU 11 DPC total execution time (s):                   0.038943

      CPU 11 DPC count:                                      6742

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      I have tried updating my I350's driver to the latest version (12.15.184.0) but the problem persists. I have the latest UEFI update from ASRock (v1.30) and Windows is up to date with all the latest updates. I am at a loss at what to do to solve this issue.

       

      Thanks in advance.