_________________________________________________________________________________________________________ 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. 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 0:21:45 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: ANTIKYTHERA OS version: Windows 8 , 6.2, build: 9200 (x64) Hardware: ASRock, Z68 Extreme4 Gen3 CPU: GenuineIntel Intel(R) Core(TM) i7-2700K CPU @ 3.50GHz Logical processors: 8 Processor groups: 1 RAM: 8072 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 3492.0 MHz Measured CPU speed: 3135.0 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): 2075.814286 Average measured interrupt to process latency (µs): 3.557687 Highest measured interrupt to DPC latency (µs): 1531.569150 Average measured interrupt to DPC latency (µs): 1.033567 _________________________________________________________________________________________________________ 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): 1009.810424 Driver with highest ISR routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation Highest reported total ISR routine time (%): 0.064225 Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation Total time spent in ISRs (%) 0.129134 ISR count (execution time <250 µs): 1994823 ISR count (execution time 250-500 µs): 0 ISR count (execution time 500-999 µs): 0 ISR count (execution time 1000-1999 µs): 27 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): 3257.043528 Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation Highest reported total DPC routine time (%): 0.130302 Driver with highest DPC total execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Total time spent in DPCs (%) 0.474960 DPC count (execution time <250 µs): 6912260 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 822 DPC count (execution time 1000-1999 µs): 13 DPC count (execution time 2000-3999 µs): 4 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: chrome.exe Total number of hard pagefaults 2103 Hard pagefault count of hardest hit process: 578 Highest hard pagefault resolution time (µs): 647072.080756 Total time spent in hard pagefaults (%): 0.071371 Number of processes hit: 18 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 83.538419 CPU 0 ISR highest execution time (µs): 1009.810424 CPU 0 ISR total execution time (s): 13.481889 CPU 0 ISR count: 1994850 CPU 0 DPC highest execution time (µs): 1442.626289 CPU 0 DPC total execution time (s): 34.622497 CPU 0 DPC count: 6022072 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 38.045819 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): 404.604238 CPU 1 DPC total execution time (s): 0.361731 CPU 1 DPC count: 23710 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 22.604549 CPU 2 ISR highest execution time (µs): 0.0 CPU 2 ISR total execution time (s): 0.0 CPU 2 ISR count: 0 CPU 2 DPC highest execution time (µs): 2106.880298 CPU 2 DPC total execution time (s): 1.865406 CPU 2 DPC count: 213475 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 52.091875 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): 390.853379 CPU 3 DPC total execution time (s): 7.843789 CPU 3 DPC count: 214254 _________________________________________________________________________________________________________ CPU 4 Interrupt cycle time (s): 24.657163 CPU 4 ISR highest execution time (µs): 0.0 CPU 4 ISR total execution time (s): 0.0 CPU 4 ISR count: 0 CPU 4 DPC highest execution time (µs): 632.959049 CPU 4 DPC total execution time (s): 2.396793 CPU 4 DPC count: 209942 _________________________________________________________________________________________________________ CPU 5 Interrupt cycle time (s): 47.245296 CPU 5 ISR highest execution time (µs): 0.0 CPU 5 ISR total execution time (s): 0.0 CPU 5 ISR count: 0 CPU 5 DPC highest execution time (µs): 327.089347 CPU 5 DPC total execution time (s): 0.398264 CPU 5 DPC count: 29406 _________________________________________________________________________________________________________ CPU 6 Interrupt cycle time (s): 20.708652 CPU 6 ISR highest execution time (µs): 0.0 CPU 6 ISR total execution time (s): 0.0 CPU 6 ISR count: 0 CPU 6 DPC highest execution time (µs): 3257.043528 CPU 6 DPC total execution time (s): 1.875955 CPU 6 DPC count: 183418 _________________________________________________________________________________________________________ CPU 7 Interrupt cycle time (s): 44.962238 CPU 7 ISR highest execution time (µs): 0.0 CPU 7 ISR total execution time (s): 0.0 CPU 7 ISR count: 0 CPU 7 DPC highest execution time (µs): 307.113116 CPU 7 DPC total execution time (s): 0.222553 CPU 7 DPC count: 16822 _________________________________________________________________________________________________________