Dear technet community, I hope I am in the right forum and I hope you can help me out :O
Since I switched to nVidia (GTX 970) I am constantly experiencing game stuttering/freezes ingame/while watching videos.
I nearly tried everything:
- Bios update and reset
- remove soundcard with driver
- update onboard sound drivers
- disable all possible USB Modules
- remove W-Lan card with driver (although I didnt test throughly here)
- reinstall Windows with all updates
Another thing I did was exchange the GTX 970 for a GTX 770 from my second PC - the freezing was gone and both computers operated normally but the high DPC values still remain.
I used xperf and latencymon to evaluate some data, here are the results:
Thank you in advance for your help, have a nice week!
------------------------------------------------------------------------------------
XPERF RESULT:
--------------------------
DPC Info
--------------------------
CPU Usage Summing By Module For the Whole Trace
CPU Usage from 0 us to 20288797 us:
CPU 0 Usage, CPU 1 Usage, CPU 2 Usage, CPU 3 Usage,
usec %, usec %, usec %, usec %, Module
129117 0.64, 12984 0.06, 5837 0.03, 3917 0.02, "Unknown"
Total = 21293
Elapsed Time, > 0 usecs AND <= 1 usecs, 1566, or 7.35%
Elapsed Time, > 1 usecs AND <= 2 usecs, 3142, or 14.76%
Elapsed Time, > 2 usecs AND <= 4 usecs, 5251, or 24.66%
Elapsed Time, > 4 usecs AND <= 8 usecs, 6896, or 32.39%
Elapsed Time, > 8 usecs AND <= 16 usecs, 1314, or 6.17%
Elapsed Time, > 16 usecs AND <= 32 usecs, 2686, or 12.61%
Elapsed Time, > 32 usecs AND <= 64 usecs, 407, or 1.91%
Elapsed Time, > 64 usecs AND <= 128 usecs, 30, or 0.14%
Elapsed Time, > 128 usecs AND <= 256 usecs, 1, or 0.00%
Total, 21293
Total = 21293 for module "Unknown"
Elapsed Time, > 0 usecs AND <= 1 usecs, 1566, or 7.35%
Elapsed Time, > 1 usecs AND <= 2 usecs, 3142, or 14.76%
Elapsed Time, > 2 usecs AND <= 4 usecs, 5251, or 24.66%
Elapsed Time, > 4 usecs AND <= 8 usecs, 6896, or 32.39%
Elapsed Time, > 8 usecs AND <= 16 usecs, 1314, or 6.17%
Elapsed Time, > 16 usecs AND <= 32 usecs, 2686, or 12.61%
Elapsed Time, > 32 usecs AND <= 64 usecs, 407, or 1.91%
Elapsed Time, > 64 usecs AND <= 128 usecs, 30, or 0.14%
Elapsed Time, > 128 usecs AND <= 256 usecs, 1, or 0.00%
Total, 21293
All Module = 21293, Total = 21293, EQUAL
--------------------------
Usage From 0 ms to 20289 ms, Summing In 1 second intervals. Intervals=21
, CPU 0 Usage , CPU 1 Usage , CPU 2 Usage , CPU 3 Usage
Start (ms) End (ms) , (usec) % , (usec) % , (usec) % , (usec) %
0-1000 :, 12444 1.24, 1668 0.17, 330 0.03, 236 0.02
1000-2000 :, 3244 0.32, 172 0.02, 241 0.02, 176 0.02
2000-3000 :, 1928 0.19, 250 0.02, 261 0.03, 148 0.01
3000-4000 :, 2155 0.22, 135 0.01, 272 0.03, 160 0.02
4000-5000 :, 1982 0.20, 191 0.02, 193 0.02, 151 0.02
5000-6000 :, 2182 0.22, 248 0.02, 200 0.02, 211 0.02
6000-7000 :, 1965 0.20, 211 0.02, 193 0.02, 168 0.02
7000-8000 :, 2064 0.21, 326 0.03, 180 0.02, 186 0.02
8000-9000 :, 1706 0.17, 303 0.03, 206 0.02, 199 0.02
9000-10000 :, 2026 0.20, 246 0.02, 245 0.02, 195 0.02
10000-11000 :, 2172 0.22, 205 0.02, 232 0.02, 177 0.02
11000-12000 :, 5468 0.55, 426 0.04, 411 0.04, 112 0.01
12000-13000 :, 2221 0.22, 215 0.02, 340 0.03, 187 0.02
13000-14000 :, 10831 1.08, 1296 0.13, 245 0.02, 266 0.03
14000-15000 :, 11937 1.19, 794 0.08, 333 0.03, 165 0.02
15000-16000 :, 19838 1.98, 2124 0.21, 338 0.03, 431 0.04
16000-17000 :, 4341 0.43, 330 0.03, 177 0.02, 146 0.01
17000-18000 :, 13640 1.36, 1119 0.11, 527 0.05, 227 0.02
18000-19000 :, 22030 2.20, 2294 0.23, 649 0.06, 168 0.02
19000-20000 :, 3983 0.40, 340 0.03, 198 0.02, 151 0.02
20000-20289 :, 962 0.33, 91 0.03, 67 0.02, 59 0.02
--------------------------
Interrupt Info
--------------------------
CPU Usage Summing By Module For the Whole Trace
CPU Usage from 0 us to 20288797 us:
CPU 0 Usage, CPU 1 Usage, CPU 2 Usage, CPU 3 Usage,
usec %, usec %, usec %, usec %, Module
71341 0.35, 4716 0.02, 797 0.00, 585 0.00, "Unknown"
Total = 7205
Elapsed Time, > 0 usecs AND <= 1 usecs, 71, or 0.99%
Elapsed Time, > 1 usecs AND <= 2 usecs, 313, or 4.34%
Elapsed Time, > 2 usecs AND <= 4 usecs, 1868, or 25.93%
Elapsed Time, > 4 usecs AND <= 8 usecs, 2951, or 40.96%
Elapsed Time, > 8 usecs AND <= 16 usecs, 291, or 4.04%
Elapsed Time, > 16 usecs AND <= 32 usecs, 953, or 13.23%
Elapsed Time, > 32 usecs AND <= 64 usecs, 751, or 10.42%
Elapsed Time, > 64 usecs AND <= 128 usecs, 7, or 0.10%
Total, 7205
Total = 7205 for module "Unknown"
Elapsed Time, > 0 usecs AND <= 1 usecs, 71, or 0.99%
Elapsed Time, > 1 usecs AND <= 2 usecs, 313, or 4.34%
Elapsed Time, > 2 usecs AND <= 4 usecs, 1868, or 25.93%
Elapsed Time, > 4 usecs AND <= 8 usecs, 2951, or 40.96%
Elapsed Time, > 8 usecs AND <= 16 usecs, 291, or 4.04%
Elapsed Time, > 16 usecs AND <= 32 usecs, 953, or 13.23%
Elapsed Time, > 32 usecs AND <= 64 usecs, 751, or 10.42%
Elapsed Time, > 64 usecs AND <= 128 usecs, 7, or 0.10%
Total, 7205
All Module = 7205, Total = 7205, EQUAL
--------------------------
Usage From 0 ms to 20289 ms, Summing In 1 second intervals. Intervals=21
, CPU 0 Usage , CPU 1 Usage , CPU 2 Usage , CPU 3 Usage
Start (ms) End (ms) , (usec) % , (usec) % , (usec) % , (usec) %
0-1000 :, 4217 0.42, 317 0.03, 72 0.01, 11 0.00
1000-2000 :, 3522 0.35, 287 0.03, 16 0.00, 116 0.01
2000-3000 :, 2466 0.25, 153 0.02, 12 0.00, 0 0.00
3000-4000 :, 2650 0.27, 25 0.00, 14 0.00, 2 0.00
4000-5000 :, 2681 0.27, 182 0.02, 26 0.00, 2 0.00
5000-6000 :, 2808 0.28, 52 0.01, 11 0.00, 2 0.00
6000-7000 :, 2683 0.27, 60 0.01, 6 0.00, 0 0.00
7000-8000 :, 2949 0.29, 94 0.01, 15 0.00, 8 0.00
8000-9000 :, 2306 0.23, 209 0.02, 7 0.00, 64 0.01
9000-10000 :, 2718 0.27, 122 0.01, 33 0.00, 0 0.00
10000-11000 :, 2667 0.27, 114 0.01, 46 0.00, 0 0.00
11000-12000 :, 3144 0.31, 101 0.01, 23 0.00, 0 0.00
12000-13000 :, 2744 0.27, 62 0.01, 7 0.00, 0 0.00
13000-14000 :, 4102 0.41, 220 0.02, 18 0.00, 8 0.00
14000-15000 :, 3704 0.37, 212 0.02, 51 0.01, 11 0.00
15000-16000 :, 6342 0.63, 813 0.08, 126 0.01, 74 0.01
16000-17000 :, 2484 0.25, 126 0.01, 13 0.00, 45 0.00
17000-18000 :, 4983 0.50, 397 0.04, 124 0.01, 148 0.01
18000-19000 :, 7380 0.74, 680 0.07, 145 0.01, 84 0.01
19000-20000 :, 3521 0.35, 389 0.04, 34 0.00, 4 0.00
20000-20289 :, 1270 0.44, 100 0.03, 0 0.00, 7 0.00
Distribution of number of 2000 ms intervals w.r.t. DPC/ISR usage:
, CPU 0, CPU 1, CPU 2, CPU 3
DPC/ISR Usage %, DPC ISR Combined, DPC ISR Combined, DPC ISR Combined, DPC ISR Combined
>= 0 AND <= 1, 9, 11, 7, 11, 11, 11, 11, 11, 11, 11, 11, 11
> 1 AND <= 5, 2, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0
> 5 AND <= 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
> 10 AND <= 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
> 20 AND <= 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
> 40 AND <= 60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
> 60 AND <= 80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
> 80 AND <= 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
---
Total: , 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11
--------------------------------------------------------------------------------------------------------------
LATENCYMON RESULTS
_________________________________________________________________________________________________________CONCLUSION
_________________________________________________________________________________________________________
Your system seems to have difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. 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 0:08:46 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: J0CKER
OS version: Windows 8 , 6.2, build: 9200 (x64)
Hardware: ASUSTeK Computer INC., P8Z68-V PRO GEN3
CPU: GenuineIntel Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz
Logical processors: 4
Processor groups: 1
RAM: 8159 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3400,0 MHz
Measured CPU speed: 2158,0 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.
_________________________________________________________________________________________________________
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): 1090,548340
Average measured interrupt to process latency (µs): 3,798990
Highest measured interrupt to DPC latency (µs): 1089,343647
Average measured interrupt to DPC latency (µs): 0,82970
_________________________________________________________________________________________________________
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): 274,560882
Driver with highest ISR routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Highest reported total ISR routine time (%): 0,093926
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0,130620
ISR count (execution time <250 µs): 251541
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 2
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): 1334,133529
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 344.75 , NVIDIA Corporation
Highest reported total DPC routine time (%): 0,046149
Driver with highest DPC total execution time: USBPORT.SYS - USB 1.1 & 2.0-Porttreiber, Microsoft Corporation
Total time spent in DPCs (%) 0,239517
DPC count (execution time <250 µs): 1990634
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 37
DPC count (execution time 1000-1999 µs): 4
DPC count (execution time 2000-3999 µs): 0
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: titanfall.exe
Total number of hard pagefaults 1509
Hard pagefault count of hardest hit process: 1185
Highest hard pagefault resolution time (µs): 1147715,364706
Total time spent in hard pagefaults (%): 0,300828
Number of processes hit: 16
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 8,819027
CPU 0 ISR highest execution time (µs): 274,560882
CPU 0 ISR total execution time (s): 2,218289
CPU 0 ISR count: 196712
CPU 0 DPC highest execution time (µs): 1334,133529
CPU 0 DPC total execution time (s): 3,923820
CPU 0 DPC count: 1750168
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 2,694984
CPU 1 ISR highest execution time (µs): 79,882353
CPU 1 ISR total execution time (s): 0,357267
CPU 1 ISR count: 37459
CPU 1 DPC highest execution time (µs): 1236,852353
CPU 1 DPC total execution time (s): 0,605950
CPU 1 DPC count: 125219
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 2,252266
CPU 2 ISR highest execution time (µs): 91,975294
CPU 2 ISR total execution time (s): 0,112744
CPU 2 ISR count: 12101
CPU 2 DPC highest execution time (µs): 149,484706
CPU 2 DPC total execution time (s): 0,264607
CPU 2 DPC count: 58247
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 1,948746
CPU 3 ISR highest execution time (µs): 98,311176
CPU 3 ISR total execution time (s): 0,060034
CPU 3 ISR count: 5271
CPU 3 DPC highest execution time (µs): 150,977941
CPU 3 DPC total execution time (s): 0,245217
CPU 3 DPC count: 57041
_________________________________________________________________________________________________________