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  1. _________________________________________________________________________________________________________
  2. CONCLUSION
  3. _________________________________________________________________________________________________________
  4. 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.
  5. LatencyMon has been analyzing your system for 0:08:18 (h:mm:ss) on all processors.
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  8. _________________________________________________________________________________________________________
  9. SYSTEM INFORMATION
  10. _________________________________________________________________________________________________________
  11. Computer name: SHELL
  12. OS version: Windows 8 , 6.2, build: 9200 (x64)
  13. Hardware: Z68AP-D3, Gigabyte Technology Co., Ltd.
  14. CPU: GenuineIntel Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
  15. Logical processors: 4
  16. Processor groups: 1
  17. RAM: 20397 MB total
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  20. _________________________________________________________________________________________________________
  21. CPU SPEED
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  23. Reported CPU speed: 3310 MHz
  24. Measured CPU speed: 1 MHz (approx.)
  25.  
  26. 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.
  27.  
  28. 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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  32. _________________________________________________________________________________________________________
  33. MEASURED INTERRUPT TO USER PROCESS LATENCIES
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  35. 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.
  36.  
  37. Highest measured interrupt to process latency (µs): 141463.112789
  38. Average measured interrupt to process latency (µs): 4.204843
  39.  
  40. Highest measured interrupt to DPC latency (µs): 141445.786860
  41. Average measured interrupt to DPC latency (µs): 1.840471
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  44. _________________________________________________________________________________________________________
  45. REPORTED ISRs
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  47. Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.
  48.  
  49. Highest ISR routine execution time (µs): 221.781269
  50. Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
  51.  
  52. Highest reported total ISR routine time (%): 0.142854
  53. Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
  54.  
  55. Total time spent in ISRs (%) 0.179139
  56.  
  57. ISR count (execution time <250 µs): 257850
  58. ISR count (execution time 250-500 µs): 0
  59. ISR count (execution time 500-999 µs): 0
  60. ISR count (execution time 1000-1999 µs): 0
  61. ISR count (execution time 2000-3999 µs): 0
  62. ISR count (execution time >=4000 µs): 0
  63.  
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  65. _________________________________________________________________________________________________________
  66. REPORTED DPCs
  67. _________________________________________________________________________________________________________
  68. 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.
  69.  
  70. Highest DPC routine execution time (µs): 141392.167069
  71. Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
  72.  
  73. Highest reported total DPC routine time (%): 0.110109
  74. Driver with highest DPC total execution time: tcpip.sys - TCP/IP Driver, Microsoft Corporation
  75.  
  76. Total time spent in DPCs (%) 0.51590
  77.  
  78. DPC count (execution time <250 µs): 2898145
  79. DPC count (execution time 250-500 µs): 0
  80. DPC count (execution time 500-999 µs): 100
  81. DPC count (execution time 1000-1999 µs): 0
  82. DPC count (execution time 2000-3999 µs): 0
  83. DPC count (execution time >=4000 µs): 0
  84.  
  85.  
  86. _________________________________________________________________________________________________________
  87. REPORTED HARD PAGEFAULTS
  88. _________________________________________________________________________________________________________
  89. 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.
  90.  
  91. 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.
  92.  
  93. Process with highest pagefault count: firefox.exe
  94.  
  95. Total number of hard pagefaults 535
  96. Hard pagefault count of hardest hit process: 275
  97. Highest hard pagefault resolution time (µs): 108170.501511
  98. Total time spent in hard pagefaults (%): 0.038002
  99. Number of processes hit: 14
  100.  
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  102. _________________________________________________________________________________________________________
  103. PER CPU DATA
  104. _________________________________________________________________________________________________________
  105. CPU 0 Interrupt cycle time (s): 33.139989
  106. CPU 0 ISR highest execution time (µs): 221.781269
  107. CPU 0 ISR total execution time (s): 3.504677
  108. CPU 0 ISR count: 254387
  109. CPU 0 DPC highest execution time (µs): 141392.167069
  110. CPU 0 DPC total execution time (s): 8.095139
  111. CPU 0 DPC count: 2666555
  112. _________________________________________________________________________________________________________
  113. CPU 1 Interrupt cycle time (s): 13.371904
  114. CPU 1 ISR highest execution time (µs): 167.297583
  115. CPU 1 ISR total execution time (s): 0.063617
  116. CPU 1 ISR count: 3445
  117. CPU 1 DPC highest execution time (µs): 304.882477
  118. CPU 1 DPC total execution time (s): 0.743507
  119. CPU 1 DPC count: 81760
  120. _________________________________________________________________________________________________________
  121. CPU 2 Interrupt cycle time (s): 12.812560
  122. CPU 2 ISR highest execution time (µs): 61.499698
  123. CPU 2 ISR total execution time (s): 0.000277
  124. CPU 2 ISR count: 18
  125. CPU 2 DPC highest execution time (µs): 312.177039
  126. CPU 2 DPC total execution time (s): 0.695625
  127. CPU 2 DPC count: 73626
  128. _________________________________________________________________________________________________________
  129. CPU 3 Interrupt cycle time (s): 12.973166
  130. CPU 3 ISR highest execution time (µs): 0.0
  131. CPU 3 ISR total execution time (s): 0.0
  132. CPU 3 ISR count: 0
  133. CPU 3 DPC highest execution time (µs): 359.116918
  134. CPU 3 DPC total execution time (s): 0.742781
  135. CPU 3 DPC count: 76305
  136. _________________________________________________________________________________________________________
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