_________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ Your system seems to be having difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. 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 0:00:42 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: IC-STICK OS version: Windows 8 , 6.2, build: 9200 (x86) Hardware: STCK1A32WFC, Intel Corporation CPU: GenuineIntel Intel(R) Atom(TM) CPU Z3735F @ 1.33GHz Logical processors: 4 Processor groups: 1 RAM: 1959 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 1333 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. _________________________________________________________________________________________________________ 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): 827.904212 Average measured interrupt to process latency (µs): 17.890325 Highest measured interrupt to DPC latency (µs): 596.736153 Average measured interrupt to DPC latency (µs): 4.674810 _________________________________________________________________________________________________________ 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): 203.870968 Driver with highest ISR routine execution time: sdbus.sys - SecureDigital Bus Driver, Microsoft Corporation Highest reported total ISR routine time (%): 0.051022 Driver with highest ISR total time: sdbus.sys - SecureDigital Bus Driver, Microsoft Corporation Total time spent in ISRs (%) 0.054277 ISR count (execution time <250 µs): 22842 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): 1406.631658 Driver with highest DPC routine execution time: tcpip.sys - TCP/IP Driver, Microsoft Corporation Highest reported total DPC routine time (%): 0.183349 Driver with highest DPC total execution time: sdbus.sys - SecureDigital Bus Driver, Microsoft Corporation Total time spent in DPCs (%) 0.455626 DPC count (execution time <250 µs): 45812 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 240 DPC count (execution time 1000-1999 µs): 19 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: spoolsv.exe Total number of hard pagefaults 773 Hard pagefault count of hardest hit process: 487 Highest hard pagefault resolution time (µs): 569625.026257 Total time spent in hard pagefaults (%): 1.557571 Number of processes hit: 9 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 1.428117 CPU 0 ISR highest execution time (µs): 203.870968 CPU 0 ISR total execution time (s): 0.089752 CPU 0 ISR count: 22284 CPU 0 DPC highest execution time (µs): 1265.836459 CPU 0 DPC total execution time (s): 0.584810 CPU 0 DPC count: 40778 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 0.759407 CPU 1 ISR highest execution time (µs): 12.807202 CPU 1 ISR total execution time (s): 0.001705 CPU 1 ISR count: 558 CPU 1 DPC highest execution time (µs): 1406.631658 CPU 1 DPC total execution time (s): 0.063858 CPU 1 DPC count: 2218 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 0.575438 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): 1337.794449 CPU 2 DPC total execution time (s): 0.077111 CPU 2 DPC count: 1836 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 0.453949 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): 1114.106527 CPU 3 DPC total execution time (s): 0.041951 CPU 3 DPC count: 1239 _________________________________________________________________________________________________________