Question Very high process latency - what is causing that

Jul 8, 2019
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Hello, Im struggling with fixing stuttering in games during heavy load. Could someone check this report and tell me what could possibly be wrong? I checked temp during playing and its max 82 degree

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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 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 0:05:15 (h🇲🇲ss) on all processors.


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SYSTEM INFORMATION
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Computer name: RAZZLY-PC
OS version: Windows 7 Service Pack 1 , 6.1, build: 7601 (x64)
Hardware: B250M-D3H, Gigabyte Technology Co., Ltd., B250M-D3H-CF
CPU: GenuineIntel Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Logical processors: 8
Processor groups: 1
RAM: 16342 MB total


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CPU SPEED
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Reported CPU speed: 420 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.

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): 7548,888341
Average measured interrupt to process latency (µs): 3,531487

Highest measured interrupt to DPC latency (µs): 509,776693
Average measured interrupt to DPC latency (µs): 1,041957


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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): 585,214048
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%): 0,281671
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0,301879

ISR count (execution time <250 µs): 653174
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 122
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): 947,825714
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 417.71 , NVIDIA Corporation

Highest reported total DPC routine time (%): 0,077905
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 417.71 , NVIDIA Corporation

Total time spent in DPCs (%) 0,248151

DPC count (execution time <250 µs): 2172895
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 96
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.

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: firefox.exe

Total number of hard pagefaults 12721
Hard pagefault count of hardest hit process: 6221
Number of processes hit: 5


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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 20,049105
CPU 0 ISR highest execution time (µs): 585,214048
CPU 0 ISR total execution time (s): 7,618973
CPU 0 ISR count: 653296
CPU 0 DPC highest execution time (µs): 947,825714
CPU 0 DPC total execution time (s): 6,204758
CPU 0 DPC count: 2147496
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CPU 1 Interrupt cycle time (s): 4,860392
CPU 1 ISR highest execution time (µs): 0,0
CPU 1 ISR total execution time (s): 0,0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 101,065476
CPU 1 DPC total execution time (s): 0,006131
CPU 1 DPC count: 3279
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CPU 2 Interrupt cycle time (s): 5,281281
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): 101,811429
CPU 2 DPC total execution time (s): 0,010822
CPU 2 DPC count: 5308
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CPU 3 Interrupt cycle time (s): 4,951758
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): 118,312381
CPU 3 DPC total execution time (s): 0,009541
CPU 3 DPC count: 3081
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CPU 4 Interrupt cycle time (s): 5,757008
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): 116,140714
CPU 4 DPC total execution time (s): 0,011231
CPU 4 DPC count: 4568
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CPU 5 Interrupt cycle time (s): 2,459135
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): 91,806190
CPU 5 DPC total execution time (s): 0,004422
CPU 5 DPC count: 2035
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CPU 6 Interrupt cycle time (s): 4,144081
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): 55,930476
CPU 6 DPC total execution time (s): 0,008390
CPU 6 DPC count: 4431
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CPU 7 Interrupt cycle time (s): 4,151724
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): 106,295238
CPU 7 DPC total execution time (s): 0,007651
CPU 7 DPC count: 2793
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