Drivers & Software

leifus · ‎01-22-2021

hi, recently got my new 6900 XT card and it seem to have very hige DPC latency spikes randomly and when it happend i hear a crackle in the sound.  I have update every driver, both BIOS and GPU driver(made sure to use DDU to before installing GPU driver) I also made sure to turn off most of the power saving features in the power plan.

here is the report i get from Latency monitor.

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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. 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  0:08:33  (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name:                                        DESKTOP-VCNGV6S
OS version:                                           Windows 10, 10.0, version 2009, build: 19042 (x64)
Hardware:                                             System Product Name, ASUS
CPU:                                                  AuthenticAMD AMD Ryzen 9 3900X 12-Core Processor 
Logical processors:                                   24
Processor groups:                                     1
RAM:                                                  32681 MB total
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CPU SPEED
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Reported CPU speed:                                   380 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.
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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 (&micro;s):   18237.40
Average measured interrupt to process latency (&micro;s):   5.910152

Highest measured interrupt to DPC latency (&micro;s):       18234.0
Average measured interrupt to DPC latency (&micro;s):       2.446007
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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 (&micro;s):              5.640
Driver with highest ISR routine execution time:       Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%):          0.000066
Driver with highest ISR total time:                   Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in ISRs (%)                          0.000066

ISR count (execution time &lt;250 &micro;s):                   10582
ISR count (execution time 250-500 &micro;s):                0
ISR count (execution time 500-1000 &micro;s):               0
ISR count (execution time 1000-2000 &micro;s):              0
ISR count (execution time 2000-4000 &micro;s):              0
ISR count (execution time &gt;=4000 &micro;s):                 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 (&micro;s):              27801.130
Driver with highest DPC routine execution time:       dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total DPC routine time (%):          0.033845
Driver with highest DPC total execution time:         dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in DPCs (%)                          0.040416

DPC count (execution time &lt;250 &micro;s):                   787379
DPC count (execution time 250-500 &micro;s):                0
DPC count (execution time 500-10000 &micro;s):              5
DPC count (execution time 1000-2000 &micro;s):              0
DPC count (execution time 2000-4000 &micro;s):              0
DPC count (execution time &gt;=4000 &micro;s):                 8
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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.

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:                 radeonsoftware.exe

Total number of hard pagefaults                       126
Hard pagefault count of hardest hit process:          102
Number of processes hit:                              9
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 PER CPU DATA
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CPU 0 Interrupt cycle time (s):                       1.967648
CPU 0 ISR highest execution time (&micro;s):                0.0
CPU 0 ISR total execution time (s):                   0.0
CPU 0 ISR count:                                      0
CPU 0 DPC highest execution time (&micro;s):                235.090
CPU 0 DPC total execution time (s):                   0.066681
CPU 0 DPC count:                                      28713
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CPU 1 Interrupt cycle time (s):                       1.295556
CPU 1 ISR highest execution time (&micro;s):                0.0
CPU 1 ISR total execution time (s):                   0.0
CPU 1 ISR count:                                      0
CPU 1 DPC highest execution time (&micro;s):                28.820
CPU 1 DPC total execution time (s):                   0.002881
CPU 1 DPC count:                                      1015
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CPU 2 Interrupt cycle time (s):                       1.857254
CPU 2 ISR highest execution time (&micro;s):                0.750
CPU 2 ISR total execution time (s):                   0.000001
CPU 2 ISR count:                                      1
CPU 2 DPC highest execution time (&micro;s):                61.80
CPU 2 DPC total execution time (s):                   0.011372
CPU 2 DPC count:                                      3780
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CPU 3 Interrupt cycle time (s):                       1.312523
CPU 3 ISR highest execution time (&micro;s):                2.330
CPU 3 ISR total execution time (s):                   0.000002
CPU 3 ISR count:                                      1
CPU 3 DPC highest execution time (&micro;s):                1.70
CPU 3 DPC total execution time (s):                   0.000011
CPU 3 DPC count:                                      8
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CPU 4 Interrupt cycle time (s):                       1.514068
CPU 4 ISR highest execution time (&micro;s):                5.640
CPU 4 ISR total execution time (s):                   0.001076
CPU 4 ISR count:                                      518
CPU 4 DPC highest execution time (&micro;s):                68.460
CPU 4 DPC total execution time (s):                   0.016116
CPU 4 DPC count:                                      2110
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CPU 5 Interrupt cycle time (s):                       1.326797
CPU 5 ISR highest execution time (&micro;s):                4.880
CPU 5 ISR total execution time (s):                   0.000116
CPU 5 ISR count:                                      53
CPU 5 DPC highest execution time (&micro;s):                40.980
CPU 5 DPC total execution time (s):                   0.006705
CPU 5 DPC count:                                      1772
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CPU 6 Interrupt cycle time (s):                       1.920530
CPU 6 ISR highest execution time (&micro;s):                4.920
CPU 6 ISR total execution time (s):                   0.000301
CPU 6 ISR count:                                      173
CPU 6 DPC highest execution time (&micro;s):                43.710
CPU 6 DPC total execution time (s):                   0.005082
CPU 6 DPC count:                                      897
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CPU 7 Interrupt cycle time (s):                       1.392243
CPU 7 ISR highest execution time (&micro;s):                3.50
CPU 7 ISR total execution time (s):                   0.000235
CPU 7 ISR count:                                      187
CPU 7 DPC highest execution time (&micro;s):                33.930
CPU 7 DPC total execution time (s):                   0.002866
CPU 7 DPC count:                                      251
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CPU 8 Interrupt cycle time (s):                       2.499926
CPU 8 ISR highest execution time (&micro;s):                5.620
CPU 8 ISR total execution time (s):                   0.004662
CPU 8 ISR count:                                      8050
CPU 8 DPC highest execution time (&micro;s):                86.440
CPU 8 DPC total execution time (s):                   0.084450
CPU 8 DPC count:                                      8688
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CPU 9 Interrupt cycle time (s):                       1.445453
CPU 9 ISR highest execution time (&micro;s):                2.330
CPU 9 ISR total execution time (s):                   0.000062
CPU 9 ISR count:                                      88
CPU 9 DPC highest execution time (&micro;s):                28.590
CPU 9 DPC total execution time (s):                   0.001090
CPU 9 DPC count:                                      171
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CPU 10 Interrupt cycle time (s):                       1.794710
CPU 10 ISR highest execution time (&micro;s):                2.780
CPU 10 ISR total execution time (s):                   0.000119
CPU 10 ISR count:                                      152
CPU 10 DPC highest execution time (&micro;s):                32.40
CPU 10 DPC total execution time (s):                   0.002801
CPU 10 DPC count:                                      405
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CPU 11 Interrupt cycle time (s):                       1.278195
CPU 11 ISR highest execution time (&micro;s):                2.160
CPU 11 ISR total execution time (s):                   0.000066
CPU 11 ISR count:                                      100
CPU 11 DPC highest execution time (&micro;s):                30.880
CPU 11 DPC total execution time (s):                   0.001397
CPU 11 DPC count:                                      214
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CPU 12 Interrupt cycle time (s):                       1.968773
CPU 12 ISR highest execution time (&micro;s):                0.0
CPU 12 ISR total execution time (s):                   0.0
CPU 12 ISR count:                                      0
CPU 12 DPC highest execution time (&micro;s):                48.70
CPU 12 DPC total execution time (s):                   0.004490
CPU 12 DPC count:                                      982
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CPU 13 Interrupt cycle time (s):                       1.043173
CPU 13 ISR highest execution time (&micro;s):                0.0
CPU 13 ISR total execution time (s):                   0.0
CPU 13 ISR count:                                      0
CPU 13 DPC highest execution time (&micro;s):                45.540
CPU 13 DPC total execution time (s):                   0.000847
CPU 13 DPC count:                                      190
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CPU 14 Interrupt cycle time (s):                       1.763078
CPU 14 ISR highest execution time (&micro;s):                0.0
CPU 14 ISR total execution time (s):                   0.0
CPU 14 ISR count:                                      0
CPU 14 DPC highest execution time (&micro;s):                47.70
CPU 14 DPC total execution time (s):                   0.003075
CPU 14 DPC count:                                      1041
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CPU 15 Interrupt cycle time (s):                       0.832005
CPU 15 ISR highest execution time (&micro;s):                0.0
CPU 15 ISR total execution time (s):                   0.0
CPU 15 ISR count:                                      0
CPU 15 DPC highest execution time (&micro;s):                48.460
CPU 15 DPC total execution time (s):                   0.000276
CPU 15 DPC count:                                      59
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CPU 16 Interrupt cycle time (s):                       1.780407
CPU 16 ISR highest execution time (&micro;s):                3.680
CPU 16 ISR total execution time (s):                   0.000390
CPU 16 ISR count:                                      339
CPU 16 DPC highest execution time (&micro;s):                28.610
CPU 16 DPC total execution time (s):                   0.004745
CPU 16 DPC count:                                      465
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CPU 17 Interrupt cycle time (s):                       0.926288
CPU 17 ISR highest execution time (&micro;s):                2.020
CPU 17 ISR total execution time (s):                   0.000031
CPU 17 ISR count:                                      23
CPU 17 DPC highest execution time (&micro;s):                39.060
CPU 17 DPC total execution time (s):                   0.000963
CPU 17 DPC count:                                      163
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CPU 18 Interrupt cycle time (s):                       1.554064
CPU 18 ISR highest execution time (&micro;s):                3.540
CPU 18 ISR total execution time (s):                   0.000061
CPU 18 ISR count:                                      52
CPU 18 DPC highest execution time (&micro;s):                20.070
CPU 18 DPC total execution time (s):                   0.000854
CPU 18 DPC count:                                      164
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CPU 19 Interrupt cycle time (s):                       1.037922
CPU 19 ISR highest execution time (&micro;s):                5.190
CPU 19 ISR total execution time (s):                   0.000344
CPU 19 ISR count:                                      265
CPU 19 DPC highest execution time (&micro;s):                50.920
CPU 19 DPC total execution time (s):                   0.003778
CPU 19 DPC count:                                      340
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CPU 20 Interrupt cycle time (s):                       9.195476
CPU 20 ISR highest execution time (&micro;s):                5.330
CPU 20 ISR total execution time (s):                   0.000429
CPU 20 ISR count:                                      407
CPU 20 DPC highest execution time (&micro;s):                209.330
CPU 20 DPC total execution time (s):                   2.052723
CPU 20 DPC count:                                      320074
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CPU 21 Interrupt cycle time (s):                       2.126490
CPU 21 ISR highest execution time (&micro;s):                1.070
CPU 21 ISR total execution time (s):                   0.000003
CPU 21 ISR count:                                      3
CPU 21 DPC highest execution time (&micro;s):                908.720
CPU 21 DPC total execution time (s):                   0.036254
CPU 21 DPC count:                                      4412
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CPU 22 Interrupt cycle time (s):                       8.975392
CPU 22 ISR highest execution time (&micro;s):                2.080
CPU 22 ISR total execution time (s):                   0.000139
CPU 22 ISR count:                                      128
CPU 22 DPC highest execution time (&micro;s):                27801.130
CPU 22 DPC total execution time (s):                   1.499207
CPU 22 DPC count:                                      350380
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CPU 23 Interrupt cycle time (s):                       6.273929
CPU 23 ISR highest execution time (&micro;s):                3.420
CPU 23 ISR total execution time (s):                   0.000057
CPU 23 ISR count:                                      42
CPU 23 DPC highest execution time (&micro;s):                27729.380
CPU 23 DPC total execution time (s):                   1.175796
CPU 23 DPC count:                                      61098
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Has anyone encountered this?

Biosman · ‎02-15-2021

Hello,

same issue here, i created a ticket some weeks ago but had no response, the only way to get the latency back to normal is to go back to the old 2015 defaut ethernet driver or not to use the intergrated ethernet ports of the motherboard, can you try?

BlachWolf · ‎11-10-2021

Having the exact same issue and even the same values, 27ms spikes on the dxgkrnl.sys driver, not using my second screen solves the issue, sometimes borderless screen also fixes it. I've performed several Bug reports and post and its 99% a driver issue. Lets hope AMD can fix this one.

Drivers & Software

Radon RX 6900 XT high DPC latency spikes