USB hub 4, port 8 W 3.16 R 28 _________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ Your system appears to be suitable for handling real-time audio and other tasks without dropouts. LatencyMon has been analyzing your system for 0:00:22 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: NIV OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64) Hardware: ASUSTeK Computer INC., P6T CPU: GenuineIntel Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz Logical processors: 8 Processor groups: 1 RAM: 12278 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 2672 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): 246.730439 Average measured interrupt to process latency (µs): 2.898509 Highest measured interrupt to DPC latency (µs): 245.197951 Average measured interrupt to DPC latency (µs): 1.088458 _________________________________________________________________________________________________________ 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): 55.436003 Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation Highest reported total ISR routine time (%): 0.049332 Driver with highest ISR total time: SCSIPORT.SYS - SCSI Port Driver, Microsoft Corporation Total time spent in ISRs (%) 0.098925 ISR count (execution time <250 µs): 57834 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): 376.719686 Driver with highest DPC routine execution time: ndis.sys - NDIS 6.20 driver, Microsoft Corporation Highest reported total DPC routine time (%): 0.137126 Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation Total time spent in DPCs (%) 0.278296 DPC count (execution time <250 µs): 138133 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 15 DPC count (execution time 1000-1999 µs): 0 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: mbam.exe Total number of hard pagefaults 15 Hard pagefault count of hardest hit process: 10 Number of processes hit: 3 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 0.648883 CPU 0 ISR highest execution time (µs): 15.708458 CPU 0 ISR total execution time (s): 0.131844 CPU 0 ISR count: 43959 CPU 0 DPC highest execution time (µs): 376.719686 CPU 0 DPC total execution time (s): 0.339962 CPU 0 DPC count: 109549 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 0.106244 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): 0.0 CPU 1 DPC total execution time (s): 0.0 CPU 1 DPC count: 0 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 0.207528 CPU 2 ISR highest execution time (µs): 55.436003 CPU 2 ISR total execution time (s): 0.011024 CPU 2 ISR count: 533 CPU 2 DPC highest execution time (µs): 90.394461 CPU 2 DPC total execution time (s): 0.009911 CPU 2 DPC count: 1013 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 0.085152 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): 0.0 CPU 3 DPC total execution time (s): 0.0 CPU 3 DPC count: 0 _________________________________________________________________________________________________________ CPU 4 Interrupt cycle time (s): 0.121069 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): 8.334955 CPU 4 DPC total execution time (s): 0.000079 CPU 4 DPC count: 29 _________________________________________________________________________________________________________ CPU 5 Interrupt cycle time (s): 0.354994 CPU 5 ISR highest execution time (µs): 9.229042 CPU 5 ISR total execution time (s): 0.033838 CPU 5 ISR count: 13323 CPU 5 DPC highest execution time (µs): 41.869386 CPU 5 DPC total execution time (s): 0.146302 CPU 5 DPC count: 27190 _________________________________________________________________________________________________________ CPU 6 Interrupt cycle time (s): 0.103182 CPU 6 ISR highest execution time (µs): 9.029192 CPU 6 ISR total execution time (s): 0.000084 CPU 6 ISR count: 19 CPU 6 DPC highest execution time (µs): 15.261976 CPU 6 DPC total execution time (s): 0.001095 CPU 6 DPC count: 367 _________________________________________________________________________________________________________ CPU 7 Interrupt cycle time (s): 0.106335 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): 0.0 CPU 7 DPC total execution time (s): 0.0 CPU 7 DPC count: 0 _________________________________________________________________________________________________________