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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. 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 0:14:00 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: Igor
OS version: Windows 7 Service Pack 1 , 6.1, build: 7601 (x64)
Hardware: ASUSTeK Computer INC., P7P55D LE
CPU: GenuineIntel Intel(R) Core(TM) i5 CPU 760 @ 2.80GHz
Logical processors: 4
Processor groups: 1
RAM: 8190 MB total
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CPU SPEED
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Reported CPU speed: 2808 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.
WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.
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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): 19706,764407
Average measured interrupt to process latency (µs): 7,083537
Highest measured interrupt to DPC latency (µs): 4019,016383
Average measured interrupt to DPC latency (µs): 1,690507
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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): 170,497863
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0,075336
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0,114206
ISR count (execution time <250 µs): 819258
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): 3429,035613
Driver with highest DPC routine execution time: tcpip.sys - Драйвер TCP/IP, Microsoft Corporation
Highest reported total DPC routine time (%): 0,425529
Driver with highest DPC total execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation
Total time spent in DPCs (%) 0,775252
DPC count (execution time <250 µs): 6404428
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 210
DPC count (execution time 1000-1999 µs): 16
DPC count (execution time 2000-3999 µs): 5
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: chrome.exe
Total number of hard pagefaults 49113
Hard pagefault count of hardest hit process: 11582
Number of processes hit: 70
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 20,452604
CPU 0 ISR highest execution time (µs): 136,154915
CPU 0 ISR total execution time (s): 0,844864
CPU 0 ISR count: 619965
CPU 0 DPC highest execution time (µs): 3429,035613
CPU 0 DPC total execution time (s): 6,465876
CPU 0 DPC count: 2920575
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CPU 1 Interrupt cycle time (s): 40,158639
CPU 1 ISR highest execution time (µs): 170,497863
CPU 1 ISR total execution time (s): 2,790422
CPU 1 ISR count: 156778
CPU 1 DPC highest execution time (µs): 791,252137
CPU 1 DPC total execution time (s): 1,815163
CPU 1 DPC count: 176598
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CPU 2 Interrupt cycle time (s): 49,194752
CPU 2 ISR highest execution time (µs): 44,419872
CPU 2 ISR total execution time (s): 0,007472
CPU 2 ISR count: 802
CPU 2 DPC highest execution time (µs): 430,601852
CPU 2 DPC total execution time (s): 15,193276
CPU 2 DPC count: 3094038
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CPU 3 Interrupt cycle time (s): 18,589217
CPU 3 ISR highest execution time (µs): 160,026709
CPU 3 ISR total execution time (s): 0,197725
CPU 3 ISR count: 41713
CPU 3 DPC highest execution time (µs): 1410,285256
CPU 3 DPC total execution time (s): 2,595526
CPU 3 DPC count: 213448
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