A
Animal7979
Hello,
I have read many, many of the forum posts over the past year or so that these issues have been going on. It seems that something fixes the issue, then it comes around again with a vengeance. These are the worst readings I've seen on any forum, and I think that was largely because I shut the game (StarCraft II) down the instant I noticed the spike on LatencyMon. Normally this issue causes complete lock up and/or straight crash. There's a framerate stutter and audio pops/clicks like many of the other posts on this forum and others. While this has more of a tendency to occur in Blizzard games, it occasionally happens with other games or just browsing the internet. The main culprits have been pretty consistent, but this last pull show a few more than expected with high latency. When this issue occurs, there is also a spike in System (as high as ~50%) and/or System Interrupts (as high as ~30%)CPU usage. The highest combined I've seen between the two was ~60% (40/20 system to interrupts).
Since I have been battling this issue on and off for a period of time, I have done many, many of the normal and abnormal fixes suggested. I have rooted around in the BIOS, ran system scans with no issues, changed Windows based settings, reinstalled windows 10, disabled each of the graphics cards individually to confirm it's not restricted to one, updated all drivers, disabled hardware in Device Manager, removed and installed video drivers, gone from stock to oc and back on CPU and Ram, etc., etc., etc.
SPECS:
Mobo: Gigabyte Z170XP-SLI
CPU: i5 6600K tested from 3.5-4.5 GHz at various levels
GPU: 2x Galaxy GTX 660 SLI (as mentioned tested each individually as well as SLI)
Ram: TeamElite Plus 16 GB DDR4 2400 (2x 8 GB)
OS: Windows 10 Pro Version 1607
LatencyMon Report Below:
CONCLUSION
_________________________________________________________________________________________________________
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. Also one or more ISR 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 0:16:50 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-6QML87P
OS version: Windows 8 , 6.2, build: 9200 (x64)
Hardware: Z170XP-SLI, Gigabyte Technology Co., Ltd., Z170XP-SLI-CF
CPU: GenuineIntel Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
Logical processors: 4
Processor groups: 1
RAM: 16339 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3504 MHz
Measured CPU speed: 56 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.
_________________________________________________________________________________________________________
MEASURED INTERRUPT TO USER PROCESS LATENCIES
_________________________________________________________________________________________________________
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): 1049137.0
Average measured interrupt to process latency (µs): 49.717287
Highest measured interrupt to DPC latency (µs): 1049109.208333
Average measured interrupt to DPC latency (µs): 23.390508
_________________________________________________________________________________________________________
REPORTED ISRs
_________________________________________________________________________________________________________
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): 846914.235731
Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Highest reported total ISR routine time (%): 1.254319
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 1.517080
ISR count (execution time <250 µs): 836423
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 3906
ISR count (execution time 1000-1999 µs): 675
ISR count (execution time 2000-3999 µs): 4396
ISR count (execution time >=4000 µs): 0
_________________________________________________________________________________________________________
REPORTED DPCs
_________________________________________________________________________________________________________
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): 798582.507420
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 384.94 , NVIDIA Corporation
Highest reported total DPC routine time (%): 0.574080
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 384.94 , NVIDIA Corporation
Total time spent in DPCs (%) 1.886716
DPC count (execution time <250 µs): 4021024
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 3726
DPC count (execution time 1000-1999 µs): 59
DPC count (execution time 2000-3999 µs): 2959
DPC count (execution time >=4000 µs): 0
_________________________________________________________________________________________________________
REPORTED HARD PAGEFAULTS
_________________________________________________________________________________________________________
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: agent.exe
Total number of hard pagefaults 26828
Hard pagefault count of hardest hit process: 8745
Highest hard pagefault resolution time (µs): 1192707.798516
Total time spent in hard pagefaults (%): 0.215910
Number of processes hit: 37
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 188.099472
CPU 0 ISR highest execution time (µs): 593755.077626
CPU 0 ISR total execution time (s): 38.416991
CPU 0 ISR count: 620681
CPU 0 DPC highest execution time (µs): 798582.507420
CPU 0 DPC total execution time (s): 56.463349
CPU 0 DPC count: 2701907
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 50.716268
CPU 1 ISR highest execution time (µs): 846914.235731
CPU 1 ISR total execution time (s): 22.394269
CPU 1 ISR count: 218089
CPU 1 DPC highest execution time (µs): 256834.691781
CPU 1 DPC total execution time (s): 15.467104
CPU 1 DPC count: 579978
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 12.925748
CPU 2 ISR highest execution time (µs): 18042.622717
CPU 2 ISR total execution time (s): 0.513138
CPU 2 ISR count: 8474
CPU 2 DPC highest execution time (µs): 379021.313356
CPU 2 DPC total execution time (s): 2.793907
CPU 2 DPC count: 379593
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 11.361997
CPU 3 ISR highest execution time (µs): 20067.184361
CPU 3 ISR total execution time (s): 0.025327
CPU 3 ISR count: 586
CPU 3 DPC highest execution time (µs): 125278.024543
CPU 3 DPC total execution time (s): 1.573213
CPU 3 DPC count: 368293
Continue reading...
I have read many, many of the forum posts over the past year or so that these issues have been going on. It seems that something fixes the issue, then it comes around again with a vengeance. These are the worst readings I've seen on any forum, and I think that was largely because I shut the game (StarCraft II) down the instant I noticed the spike on LatencyMon. Normally this issue causes complete lock up and/or straight crash. There's a framerate stutter and audio pops/clicks like many of the other posts on this forum and others. While this has more of a tendency to occur in Blizzard games, it occasionally happens with other games or just browsing the internet. The main culprits have been pretty consistent, but this last pull show a few more than expected with high latency. When this issue occurs, there is also a spike in System (as high as ~50%) and/or System Interrupts (as high as ~30%)CPU usage. The highest combined I've seen between the two was ~60% (40/20 system to interrupts).
Since I have been battling this issue on and off for a period of time, I have done many, many of the normal and abnormal fixes suggested. I have rooted around in the BIOS, ran system scans with no issues, changed Windows based settings, reinstalled windows 10, disabled each of the graphics cards individually to confirm it's not restricted to one, updated all drivers, disabled hardware in Device Manager, removed and installed video drivers, gone from stock to oc and back on CPU and Ram, etc., etc., etc.
SPECS:
Mobo: Gigabyte Z170XP-SLI
CPU: i5 6600K tested from 3.5-4.5 GHz at various levels
GPU: 2x Galaxy GTX 660 SLI (as mentioned tested each individually as well as SLI)
Ram: TeamElite Plus 16 GB DDR4 2400 (2x 8 GB)
OS: Windows 10 Pro Version 1607
LatencyMon Report Below:
CONCLUSION
_________________________________________________________________________________________________________
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. Also one or more ISR 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 0:16:50 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-6QML87P
OS version: Windows 8 , 6.2, build: 9200 (x64)
Hardware: Z170XP-SLI, Gigabyte Technology Co., Ltd., Z170XP-SLI-CF
CPU: GenuineIntel Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
Logical processors: 4
Processor groups: 1
RAM: 16339 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3504 MHz
Measured CPU speed: 56 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.
_________________________________________________________________________________________________________
MEASURED INTERRUPT TO USER PROCESS LATENCIES
_________________________________________________________________________________________________________
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): 1049137.0
Average measured interrupt to process latency (µs): 49.717287
Highest measured interrupt to DPC latency (µs): 1049109.208333
Average measured interrupt to DPC latency (µs): 23.390508
_________________________________________________________________________________________________________
REPORTED ISRs
_________________________________________________________________________________________________________
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): 846914.235731
Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Highest reported total ISR routine time (%): 1.254319
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 1.517080
ISR count (execution time <250 µs): 836423
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 3906
ISR count (execution time 1000-1999 µs): 675
ISR count (execution time 2000-3999 µs): 4396
ISR count (execution time >=4000 µs): 0
_________________________________________________________________________________________________________
REPORTED DPCs
_________________________________________________________________________________________________________
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): 798582.507420
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 384.94 , NVIDIA Corporation
Highest reported total DPC routine time (%): 0.574080
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 384.94 , NVIDIA Corporation
Total time spent in DPCs (%) 1.886716
DPC count (execution time <250 µs): 4021024
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 3726
DPC count (execution time 1000-1999 µs): 59
DPC count (execution time 2000-3999 µs): 2959
DPC count (execution time >=4000 µs): 0
_________________________________________________________________________________________________________
REPORTED HARD PAGEFAULTS
_________________________________________________________________________________________________________
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: agent.exe
Total number of hard pagefaults 26828
Hard pagefault count of hardest hit process: 8745
Highest hard pagefault resolution time (µs): 1192707.798516
Total time spent in hard pagefaults (%): 0.215910
Number of processes hit: 37
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 188.099472
CPU 0 ISR highest execution time (µs): 593755.077626
CPU 0 ISR total execution time (s): 38.416991
CPU 0 ISR count: 620681
CPU 0 DPC highest execution time (µs): 798582.507420
CPU 0 DPC total execution time (s): 56.463349
CPU 0 DPC count: 2701907
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 50.716268
CPU 1 ISR highest execution time (µs): 846914.235731
CPU 1 ISR total execution time (s): 22.394269
CPU 1 ISR count: 218089
CPU 1 DPC highest execution time (µs): 256834.691781
CPU 1 DPC total execution time (s): 15.467104
CPU 1 DPC count: 579978
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 12.925748
CPU 2 ISR highest execution time (µs): 18042.622717
CPU 2 ISR total execution time (s): 0.513138
CPU 2 ISR count: 8474
CPU 2 DPC highest execution time (µs): 379021.313356
CPU 2 DPC total execution time (s): 2.793907
CPU 2 DPC count: 379593
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 11.361997
CPU 3 ISR highest execution time (µs): 20067.184361
CPU 3 ISR total execution time (s): 0.025327
CPU 3 ISR count: 586
CPU 3 DPC highest execution time (µs): 125278.024543
CPU 3 DPC total execution time (s): 1.573213
CPU 3 DPC count: 368293
Continue reading...