edwardinchains
New member
- Nov 2, 2015
- 1
Hi - I'm new here so I'm not sure if I'm posting in the right place - Hello by the way!
Anyway, Im working on a computer for a friend of mine - he uses it solely for audio production, live recording, mastering, playback etc. - he uses ableton, cubase, kontakt etc - lately he has been getting audio clipping, clicks, pops and dropouts - I have tried a few things I have found online but cant seem to figure what is causing the issue - below is a copy of the LatencyMon report - scsiport.sys is showing a high execution rate, however i can resolve this by disabling the JMicron in the bios and removing the dvd drive - any help would be greatly appreciated - pulling my hair out here
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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 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 0:07:58 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: MICK-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: OEM, http://www.abit.com.tw/, AB9 QuadGT (Intel965+ICH8R)
CPU: GenuineIntel Intel(R) Core(TM)2 Quad CPU @ 2.40GHz
Logical processors: 4
Processor groups: 1
RAM: 8190 MB total
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CPU SPEED
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Reported CPU speed: 2448.0 MHz
Measured CPU speed: 2253.0 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.
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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): 2132.479784
Average measured interrupt to process latency (µs): 5.715297
Highest measured interrupt to DPC latency (µs): 1329.767209
Average measured interrupt to DPC latency (µs): 2.373725
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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): 99.367647
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.021610
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.041467
ISR count (execution time <250 µs): 158691
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
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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): 1493.702206
Driver with highest DPC routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation
Highest reported total DPC routine time (%): 0.039375
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 309.08 , NVIDIA Corporation
Total time spent in DPCs (%) 0.127080
DPC count (execution time <250 µs): 311786
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 413
DPC count (execution time 1000-1999 µs): 66
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: svchost.exe
Total number of hard pagefaults 3458
Hard pagefault count of hardest hit process: 1368
Highest hard pagefault resolution time (µs): 500011.128676
Total time spent in hard pagefaults (%): 0.198139
Number of processes hit: 14
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 3.614672
CPU 0 ISR highest execution time (µs): 99.367647
CPU 0 ISR total execution time (s): 0.774237
CPU 0 ISR count: 155203
CPU 0 DPC highest execution time (µs): 1294.323529
CPU 0 DPC total execution time (s): 2.341696
CPU 0 DPC count: 308111
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CPU 1 Interrupt cycle time (s): 0.387328
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): 37.886029
CPU 1 DPC total execution time (s): 0.001583
CPU 1 DPC count: 196
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CPU 2 Interrupt cycle time (s): 0.307506
CPU 2 ISR highest execution time (µs): 59.926471
CPU 2 ISR total execution time (s): 0.018818
CPU 2 ISR count: 3488
CPU 2 DPC highest execution time (µs): 1493.702206
CPU 2 DPC total execution time (s): 0.085446
CPU 2 DPC count: 3753
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CPU 3 Interrupt cycle time (s): 0.344707
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): 102.011029
CPU 3 DPC total execution time (s): 0.001687
CPU 3 DPC count: 205
____________________________________________________
Anyway, Im working on a computer for a friend of mine - he uses it solely for audio production, live recording, mastering, playback etc. - he uses ableton, cubase, kontakt etc - lately he has been getting audio clipping, clicks, pops and dropouts - I have tried a few things I have found online but cant seem to figure what is causing the issue - below is a copy of the LatencyMon report - scsiport.sys is showing a high execution rate, however i can resolve this by disabling the JMicron in the bios and removing the dvd drive - any help would be greatly appreciated - pulling my hair out here
_________________________________________________________________________________________________________
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. 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 0:07:58 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: MICK-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: OEM, http://www.abit.com.tw/, AB9 QuadGT (Intel965+ICH8R)
CPU: GenuineIntel Intel(R) Core(TM)2 Quad CPU @ 2.40GHz
Logical processors: 4
Processor groups: 1
RAM: 8190 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 2448.0 MHz
Measured CPU speed: 2253.0 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): 2132.479784
Average measured interrupt to process latency (µs): 5.715297
Highest measured interrupt to DPC latency (µs): 1329.767209
Average measured interrupt to DPC latency (µs): 2.373725
_________________________________________________________________________________________________________
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): 99.367647
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.021610
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.041467
ISR count (execution time <250 µs): 158691
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): 1493.702206
Driver with highest DPC routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation
Highest reported total DPC routine time (%): 0.039375
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 309.08 , NVIDIA Corporation
Total time spent in DPCs (%) 0.127080
DPC count (execution time <250 µs): 311786
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 413
DPC count (execution time 1000-1999 µs): 66
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: svchost.exe
Total number of hard pagefaults 3458
Hard pagefault count of hardest hit process: 1368
Highest hard pagefault resolution time (µs): 500011.128676
Total time spent in hard pagefaults (%): 0.198139
Number of processes hit: 14
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 3.614672
CPU 0 ISR highest execution time (µs): 99.367647
CPU 0 ISR total execution time (s): 0.774237
CPU 0 ISR count: 155203
CPU 0 DPC highest execution time (µs): 1294.323529
CPU 0 DPC total execution time (s): 2.341696
CPU 0 DPC count: 308111
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 0.387328
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): 37.886029
CPU 1 DPC total execution time (s): 0.001583
CPU 1 DPC count: 196
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 0.307506
CPU 2 ISR highest execution time (µs): 59.926471
CPU 2 ISR total execution time (s): 0.018818
CPU 2 ISR count: 3488
CPU 2 DPC highest execution time (µs): 1493.702206
CPU 2 DPC total execution time (s): 0.085446
CPU 2 DPC count: 3753
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 0.344707
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): 102.011029
CPU 3 DPC total execution time (s): 0.001687
CPU 3 DPC count: 205
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