Hi, i bought new laptop 3 months ago and until then i am fighting with audio dropouts when audio goes through usb audio interface Yamaha mw8cx. So, when audio is reproduced through laptop speaker everything is normal. I also tried different usb audio interface, steinberg ur22 and the dropouts still occurs. It happens no matter if audio is from youtube or my collection.Dropouts are not freaquent, they come every ten minutes(sometimes longer, sometimes shorter).Also intersting is that when i connect my usb audio interface and dont install appropriate drivers, windows has some automatic drivers and i dont have dropouts but then i cant use my usb audio interface in my DAW, cubase (music production)
Today i updated my OS to windows 10 pro, but problem is still here.
My laptop is HP 470 G3- intel core i5-6200U 2.3 GHz, 8 gb ram, windows 10 pro
So here is my latencymon check run for 3 hours. I hope we will find solution to my problems! Cheers!
(I made a thread in win7 part of forum but i will delete it because i has updated to win 10)
Audio dropouts because of latency-drivers-jpgAudio dropouts because of latency-page-faults-jpg
ONCLUSION
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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 3:22:33 (h:mm:ss) on all processors.




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SYSTEM INFORMATION
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Computer name: DESKTOP-QSQEO1U
OS version: Windows 8 , 6.2, build: 9200 (x64)
Hardware: HP ProBook 470 G3, HP, 8102
CPU: GenuineIntel Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
Logical processors: 4
Processor groups: 1
RAM: 8088 MB total




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CPU SPEED
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Reported CPU speed: 240 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 (s): 2164,054257
Average measured interrupt to process latency (s): 2,732952


Highest measured interrupt to DPC latency (s): 2152,107585
Average measured interrupt to DPC latency (s): 0,913439




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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 (s): 510,2550
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation


Highest reported total ISR routine time (%): 0,009841
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation


Total time spent in ISRs (%) 0,009841


ISR count (execution time <250 s): 11645205
ISR count (execution time 250-500 s): 0
ISR count (execution time 500-999 s): 2
ISR count (execution time 1000-1999 s): 0
ISR count (execution time 2000-3999 s): 0
ISR count (execution time >=4000 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 (s): 1191,49250
Driver with highest DPC routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation


Highest reported total DPC routine time (%): 0,198155
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation


Total time spent in DPCs (%) 0,367611


DPC count (execution time <250 s): 80007838
DPC count (execution time 250-500 s): 0
DPC count (execution time 500-999 s): 22403
DPC count (execution time 1000-1999 s): 10
DPC count (execution time 2000-3999 s): 0
DPC count (execution time >=4000 s): 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.


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: svchost.exe


Total number of hard pagefaults 270185
Hard pagefault count of hardest hit process: 74423
Highest hard pagefault resolution time (s): 3755975,67750
Total time spent in hard pagefaults (%): 0,855562
Number of processes hit: 36




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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 254,757304
CPU 0 ISR highest execution time (s): 216,90750
CPU 0 ISR total execution time (s): 2,788953
CPU 0 ISR count: 6057936
CPU 0 DPC highest execution time (s): 1191,49250
CPU 0 DPC total execution time (s): 157,731966
CPU 0 DPC count: 76842878
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CPU 1 Interrupt cycle time (s): 36,347357
CPU 1 ISR highest execution time (s): 510,2550
CPU 1 ISR total execution time (s): 1,995023
CPU 1 ISR count: 5587260
CPU 1 DPC highest execution time (s): 579,67250
CPU 1 DPC total execution time (s): 3,284103
CPU 1 DPC count: 456561
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CPU 2 Interrupt cycle time (s): 45,104559
CPU 2 ISR highest execution time (s): 12,726667
CPU 2 ISR total execution time (s): 0,000046
CPU 2 ISR count: 11
CPU 2 DPC highest execution time (s): 606,51250
CPU 2 DPC total execution time (s): 12,161529
CPU 2 DPC count: 1959775
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CPU 3 Interrupt cycle time (s): 36,020161
CPU 3 ISR highest execution time (s): 0,0
CPU 3 ISR total execution time (s): 0,0
CPU 3 ISR count: 0
CPU 3 DPC highest execution time (s): 1098,591667
CPU 3 DPC total execution time (s): 5,530220
CPU 3 DPC count: 771037
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