Hier mal der Auszug von Latency Mon:
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CONCLUSION
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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 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 0:09:16 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name:
OS version: Windows 8 , 6.2, build: 9200 (x64)
Hardware: 2392AYG, LENOVO
CPU: GenuineIntel Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz
Logical processors: 4
Processor groups: 1
RAM: 8010 MB total
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CPU SPEED
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Reported CPU speed: 2893,0 MHz
Measured CPU speed: 1827,0 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): 1155,851294
Average measured interrupt to process latency (µs): 6,010768
Highest measured interrupt to DPC latency (µs): 1126,831145
Average measured interrupt to DPC latency (µs): 1,466050
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MEASURED SMI, IPI AND CPU STALLS
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The SMI, IPI and CPU stalls value represents the highest measured interval that a CPU did not respond while having its maskable interrupts disabled.
Highest measured SMI or CPU stall (µs) 15,571787
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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): 429,875562
Driver with highest ISR routine execution time: Wdf01000.sys - Kernelmodustreiber-Frameworklaufzeit, Microsoft Corporation
Highest reported total ISR routine time (%): 0,132417
Driver with highest ISR total time: Wdf01000.sys - Kernelmodustreiber-Frameworklaufzeit, Microsoft Corporation
Total time spent in ISRs (%) 0,147649
ISR count (execution time <250 µs): 5480773
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 1
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): 554,199793
Driver with highest DPC routine execution time: Wdf01000.sys - Kernelmodustreiber-Frameworklaufzeit, Microsoft Corporation
Highest reported total DPC routine time (%): 1,880486
Driver with highest DPC total execution time: Wdf01000.sys - Kernelmodustreiber-Frameworklaufzeit, Microsoft Corporation
Total time spent in DPCs (%) 2,119621
DPC count (execution time <250 µs): 7371890
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 760
DPC count (execution time 1000-1999 µs): 0
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: msiexec.exe
Total number of hard pagefaults 10745
Hard pagefault count of hardest hit process: 3115
Highest hard pagefault resolution time (µs): 620957,525060
Total time spent in hard pagefaults (%): 0,129892
Number of processes hit: 19
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 14,733776
CPU 0 ISR highest execution time (µs): 429,875562
CPU 0 ISR total execution time (s): 0,666992
CPU 0 ISR count: 1024932
CPU 0 DPC highest execution time (µs): 554,199793
CPU 0 DPC total execution time (s): 9,230069
CPU 0 DPC count: 2542976
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CPU 1 Interrupt cycle time (s): 32,375899
CPU 1 ISR highest execution time (µs): 154,187349
CPU 1 ISR total execution time (s): 1,716725
CPU 1 ISR count: 2791993
CPU 1 DPC highest execution time (µs): 356,824404
CPU 1 DPC total execution time (s): 25,232930
CPU 1 DPC count: 2934343
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CPU 2 Interrupt cycle time (s): 10,512708
CPU 2 ISR highest execution time (µs): 102,548220
CPU 2 ISR total execution time (s): 0,343570
CPU 2 ISR count: 667373
CPU 2 DPC highest execution time (µs): 375,132389
CPU 2 DPC total execution time (s): 5,205514
CPU 2 DPC count: 812843
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CPU 3 Interrupt cycle time (s): 11,825610
CPU 3 ISR highest execution time (µs): 133,171103
CPU 3 ISR total execution time (s): 0,556696
CPU 3 ISR count: 996476
CPU 3 DPC highest execution time (µs): 448,830280
CPU 3 DPC total execution time (s): 7,475849
CPU 3 DPC count: 1082488
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