I've been struggling with audio stutters for a good 3 months now. I feel like I've tried everything at this point except asking online about my specific problem. I have looked at several other threads on this issue and tried many things but I still can't get rid of the problem.
I'm using LatencyMon to detect what the bad driver that could be causing the problem is. It used to only come up as the USB driver but I fixed that...then it came up as the dxgkrnl.sys, so I rolled back to an older driver; fixed. Then the issue came up as ataport.sys and that's where it has stayed.
So I thought maybe it was the new ssd I bought, so I installed windows on another HD I had sitting around. Nothing. I tried the solution of unplugging the DVD-rom from an ata port. nothing. I installed new ndis drivers...nothing. In fact I've re-installed every driver I know about and nothing helps. I'm hoping maybe there is some driver that I have no clue about that is causing this issue. Here's hoping someone can help.
Here's my most recent log:
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 0:02:21 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: HERMETZ-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: ASUSTeK Computer INC., M4A89GTD-PRO/USB3
CPU: AuthenticAMD AMD Phenom(tm) II X4 970 Processor
Logical processors: 4
Processor groups: 1
RAM: 6142 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3792.0 MHz
Measured CPU speed: 4750.0 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): 21926.872447
Average measured interrupt to process latency (µs): 2.383028
Highest measured interrupt to DPC latency (µs): 182.512446
Average measured interrupt to DPC latency (µs): 0.638333
_________________________________________________________________________________________________________
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): 29073.204905
Driver with highest ISR routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation
Highest reported total ISR routine time (%): 0.171230
Driver with highest ISR total time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation
Total time spent in ISRs (%) 0.349484
ISR count (execution time <250 µs): 450756
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 7
ISR count (execution time 1000-1999 µs): 3
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): 2418.291930
Driver with highest DPC routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total DPC routine time (%): 0.211326
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.462729
DPC count (execution time <250 µs): 908975
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 4
DPC count (execution time 1000-1999 µs): 30
DPC count (execution time 2000-3999 µs): 1
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: ccsvchst.exe
Total number of hard pagefaults 83
Hard pagefault count of hardest hit process: 40
Highest hard pagefault resolution time (µs): 57766.383175
Total time spent in hard pagefaults (%): 0.164283
Number of processes hit: 6
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 1.602295
CPU 0 ISR highest execution time (µs): 125.590717
CPU 0 ISR total execution time (s): 0.223997
CPU 0 ISR count: 141643
CPU 0 DPC highest execution time (µs): 111.107859
CPU 0 DPC total execution time (s): 0.348401
CPU 0 DPC count: 710662
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 0.907988
CPU 1 ISR highest execution time (µs): 1184.059863
CPU 1 ISR total execution time (s): 0.060571
CPU 1 ISR count: 11212
CPU 1 DPC highest execution time (µs): 250.173523
CPU 1 DPC total execution time (s): 0.010757
CPU 1 DPC count: 1122
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 1.765886
CPU 2 ISR highest execution time (µs): 29073.204905
CPU 2 ISR total execution time (s): 0.808574
CPU 2 ISR count: 159878
CPU 2 DPC highest execution time (µs): 1229.162711
CPU 2 DPC total execution time (s): 0.182274
CPU 2 DPC count: 11692
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 4.209014
CPU 3 ISR highest execution time (µs): 952.265823
CPU 3 ISR total execution time (s): 0.879613
CPU 3 ISR count: 138035
CPU 3 DPC highest execution time (µs): 2418.291930
CPU 3 DPC total execution time (s): 2.070562
CPU 3 DPC count: 185534
_________________________________________________________________________________________________________
Thanks.
I'm using LatencyMon to detect what the bad driver that could be causing the problem is. It used to only come up as the USB driver but I fixed that...then it came up as the dxgkrnl.sys, so I rolled back to an older driver; fixed. Then the issue came up as ataport.sys and that's where it has stayed.
So I thought maybe it was the new ssd I bought, so I installed windows on another HD I had sitting around. Nothing. I tried the solution of unplugging the DVD-rom from an ata port. nothing. I installed new ndis drivers...nothing. In fact I've re-installed every driver I know about and nothing helps. I'm hoping maybe there is some driver that I have no clue about that is causing this issue. Here's hoping someone can help.
Here's my most recent log:
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 0:02:21 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: HERMETZ-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: ASUSTeK Computer INC., M4A89GTD-PRO/USB3
CPU: AuthenticAMD AMD Phenom(tm) II X4 970 Processor
Logical processors: 4
Processor groups: 1
RAM: 6142 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3792.0 MHz
Measured CPU speed: 4750.0 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): 21926.872447
Average measured interrupt to process latency (µs): 2.383028
Highest measured interrupt to DPC latency (µs): 182.512446
Average measured interrupt to DPC latency (µs): 0.638333
_________________________________________________________________________________________________________
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): 29073.204905
Driver with highest ISR routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation
Highest reported total ISR routine time (%): 0.171230
Driver with highest ISR total time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation
Total time spent in ISRs (%) 0.349484
ISR count (execution time <250 µs): 450756
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 7
ISR count (execution time 1000-1999 µs): 3
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): 2418.291930
Driver with highest DPC routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total DPC routine time (%): 0.211326
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0.462729
DPC count (execution time <250 µs): 908975
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 4
DPC count (execution time 1000-1999 µs): 30
DPC count (execution time 2000-3999 µs): 1
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: ccsvchst.exe
Total number of hard pagefaults 83
Hard pagefault count of hardest hit process: 40
Highest hard pagefault resolution time (µs): 57766.383175
Total time spent in hard pagefaults (%): 0.164283
Number of processes hit: 6
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 1.602295
CPU 0 ISR highest execution time (µs): 125.590717
CPU 0 ISR total execution time (s): 0.223997
CPU 0 ISR count: 141643
CPU 0 DPC highest execution time (µs): 111.107859
CPU 0 DPC total execution time (s): 0.348401
CPU 0 DPC count: 710662
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 0.907988
CPU 1 ISR highest execution time (µs): 1184.059863
CPU 1 ISR total execution time (s): 0.060571
CPU 1 ISR count: 11212
CPU 1 DPC highest execution time (µs): 250.173523
CPU 1 DPC total execution time (s): 0.010757
CPU 1 DPC count: 1122
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 1.765886
CPU 2 ISR highest execution time (µs): 29073.204905
CPU 2 ISR total execution time (s): 0.808574
CPU 2 ISR count: 159878
CPU 2 DPC highest execution time (µs): 1229.162711
CPU 2 DPC total execution time (s): 0.182274
CPU 2 DPC count: 11692
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 4.209014
CPU 3 ISR highest execution time (µs): 952.265823
CPU 3 ISR total execution time (s): 0.879613
CPU 3 ISR count: 138035
CPU 3 DPC highest execution time (µs): 2418.291930
CPU 3 DPC total execution time (s): 2.070562
CPU 3 DPC count: 185534
_________________________________________________________________________________________________________
Thanks.
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