Hello all,
Firstly, thanks in advance for any help. I've spent days trying to solve this problem.
I am a gamer, and I noticed that regardless of settings, including messing with new and old drivers, NVidia's Control Panel, BIOS, ThrottleStop, KillPing, etc... that absolutely nothing seems to improve my FPS in-game. The best benchmark I have is Diablo 3, since it is easy to load up and test changes. I regularly get 20-30 FPS, with stuttering and audio issues. It is most prominent when new NPCs are drawn, or particle effects are drawn. It may be sound-processing related as well, but I can't prove that.
I ran LatencyMon, and it gave me the below report. I noticed that the first three CPUs are have the largest delays due to DPC latency, but the others don't. I assume they're taking more of the load and its causing some kind of bottleneck.
Anyone have any ideas? Thanks again!
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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. 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 0:09:46 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: NICKA
OS version: Windows 10 , 10.0, build: 15063 (x64)
Hardware: Alienware 17, Alienware, 04WT2G
CPU: GenuineIntel Intel(R) Core(TM) i7-4710MQ CPU @ 2.50GHz
Logical processors: 8
Processor groups: 1
RAM: 16307 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 2494 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.
_________________________________________________________________________________________________________
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): 5007.841431
Average measured interrupt to process latency (µs): 10.600038
Highest measured interrupt to DPC latency (µs): 5000.041055
Average measured interrupt to DPC latency (µs): 4.087771
_________________________________________________________________________________________________________
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): 149.844427
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Highest reported total ISR routine time (%): 0.012058
Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Total time spent in ISRs (%) 0.014049
ISR count (execution time <250 µs): 86880
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
_________________________________________________________________________________________________________
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): 20331.180032
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
Highest reported total DPC routine time (%): 0.106091
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.475368
DPC count (execution time <250 µs): 2619016
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 1331
DPC count (execution time 1000-1999 µs): 105
DPC count (execution time 2000-3999 µs): 51
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.
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
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 46.356635
CPU 0 ISR highest execution time (µs): 149.844427
CPU 0 ISR total execution time (s): 0.427027
CPU 0 ISR count: 60409
CPU 0 DPC highest execution time (µs): 7637.419808
CPU 0 DPC total execution time (s): 17.039569
CPU 0 DPC count: 2192280
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CPU 1 Interrupt cycle time (s): 11.614223
CPU 1 ISR highest execution time (µs): 99.324779
CPU 1 ISR total execution time (s): 0.199769
CPU 1 ISR count: 23059
CPU 1 DPC highest execution time (µs): 20331.180032
CPU 1 DPC total execution time (s): 2.883530
CPU 1 DPC count: 150965
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CPU 2 Interrupt cycle time (s): 8.181366
CPU 2 ISR highest execution time (µs): 74.869687
CPU 2 ISR total execution time (s): 0.029957
CPU 2 ISR count: 3208
CPU 2 DPC highest execution time (µs): 8918.785084
CPU 2 DPC total execution time (s): 0.322148
CPU 2 DPC count: 46252
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 7.816091
CPU 3 ISR highest execution time (µs): 82.342422
CPU 3 ISR total execution time (s): 0.002041
CPU 3 ISR count: 204
CPU 3 DPC highest execution time (µs): 3684.101844
CPU 3 DPC total execution time (s): 0.165968
CPU 3 DPC count: 40211
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 8.204401
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): 251.012430
CPU 4 DPC total execution time (s): 0.211961
CPU 4 DPC count: 41113
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 8.161540
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): 250.906977
CPU 5 DPC total execution time (s): 0.252636
CPU 5 DPC count: 39947
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 8.379669
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): 248.271051
CPU 6 DPC total execution time (s): 0.513038
CPU 6 DPC count: 49784
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CPU 7 Interrupt cycle time (s): 8.619082
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): 252.210104
CPU 7 DPC total execution time (s): 0.902353
CPU 7 DPC count: 59964
_________________________________________________________________________________________________________
Firstly, thanks in advance for any help. I've spent days trying to solve this problem.
I am a gamer, and I noticed that regardless of settings, including messing with new and old drivers, NVidia's Control Panel, BIOS, ThrottleStop, KillPing, etc... that absolutely nothing seems to improve my FPS in-game. The best benchmark I have is Diablo 3, since it is easy to load up and test changes. I regularly get 20-30 FPS, with stuttering and audio issues. It is most prominent when new NPCs are drawn, or particle effects are drawn. It may be sound-processing related as well, but I can't prove that.
I ran LatencyMon, and it gave me the below report. I noticed that the first three CPUs are have the largest delays due to DPC latency, but the others don't. I assume they're taking more of the load and its causing some kind of bottleneck.
Anyone have any ideas? Thanks again!
_________________________________________________________________________________________________________
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. 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 0:09:46 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: NICKA
OS version: Windows 10 , 10.0, build: 15063 (x64)
Hardware: Alienware 17, Alienware, 04WT2G
CPU: GenuineIntel Intel(R) Core(TM) i7-4710MQ CPU @ 2.50GHz
Logical processors: 8
Processor groups: 1
RAM: 16307 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 2494 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.
_________________________________________________________________________________________________________
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): 5007.841431
Average measured interrupt to process latency (µs): 10.600038
Highest measured interrupt to DPC latency (µs): 5000.041055
Average measured interrupt to DPC latency (µs): 4.087771
_________________________________________________________________________________________________________
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): 149.844427
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Highest reported total ISR routine time (%): 0.012058
Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Total time spent in ISRs (%) 0.014049
ISR count (execution time <250 µs): 86880
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
_________________________________________________________________________________________________________
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): 20331.180032
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
Highest reported total DPC routine time (%): 0.106091
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.475368
DPC count (execution time <250 µs): 2619016
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 1331
DPC count (execution time 1000-1999 µs): 105
DPC count (execution time 2000-3999 µs): 51
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.
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
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 46.356635
CPU 0 ISR highest execution time (µs): 149.844427
CPU 0 ISR total execution time (s): 0.427027
CPU 0 ISR count: 60409
CPU 0 DPC highest execution time (µs): 7637.419808
CPU 0 DPC total execution time (s): 17.039569
CPU 0 DPC count: 2192280
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 11.614223
CPU 1 ISR highest execution time (µs): 99.324779
CPU 1 ISR total execution time (s): 0.199769
CPU 1 ISR count: 23059
CPU 1 DPC highest execution time (µs): 20331.180032
CPU 1 DPC total execution time (s): 2.883530
CPU 1 DPC count: 150965
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 8.181366
CPU 2 ISR highest execution time (µs): 74.869687
CPU 2 ISR total execution time (s): 0.029957
CPU 2 ISR count: 3208
CPU 2 DPC highest execution time (µs): 8918.785084
CPU 2 DPC total execution time (s): 0.322148
CPU 2 DPC count: 46252
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 7.816091
CPU 3 ISR highest execution time (µs): 82.342422
CPU 3 ISR total execution time (s): 0.002041
CPU 3 ISR count: 204
CPU 3 DPC highest execution time (µs): 3684.101844
CPU 3 DPC total execution time (s): 0.165968
CPU 3 DPC count: 40211
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 8.204401
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): 251.012430
CPU 4 DPC total execution time (s): 0.211961
CPU 4 DPC count: 41113
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 8.161540
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): 250.906977
CPU 5 DPC total execution time (s): 0.252636
CPU 5 DPC count: 39947
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 8.379669
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): 248.271051
CPU 6 DPC total execution time (s): 0.513038
CPU 6 DPC count: 49784
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 8.619082
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): 252.210104
CPU 7 DPC total execution time (s): 0.902353
CPU 7 DPC count: 59964
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