USB hub 5, port 8 W 2.29 R 27 _________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ Your system appears to be suitable for handling real-time audio and other tasks without dropouts. LatencyMon has been analyzing your system for 0:00:20 (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): 244.048586 Average measured interrupt to process latency (µs): 2.912833 Highest measured interrupt to DPC latency (µs): 242.132977 Average measured interrupt to DPC latency (µs): 1.028648 _________________________________________________________________________________________________________ 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): 53.663548 Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation Highest reported total ISR routine time (%): 0.049850 Driver with highest ISR total time: SCSIPORT.SYS - SCSI Port Driver, Microsoft Corporation Total time spent in ISRs (%) 0.103332 ISR count (execution time <250 µs): 52894 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): 371.31250 Driver with highest DPC routine execution time: ndis.sys - NDIS 6.20 driver, Microsoft Corporation Highest reported total DPC routine time (%): 0.139739 Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation Total time spent in DPCs (%) 0.279912 DPC count (execution time <250 µs): 125643 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 5 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. Process with highest pagefault count: none Total number of hard pagefaults 0 Hard pagefault count of hardest hit process: 0 Number of processes hit: 0 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 0.608234 CPU 0 ISR highest execution time (µs): 15.915419 CPU 0 ISR total execution time (s): 0.120935 CPU 0 ISR count: 40489 CPU 0 DPC highest execution time (µs): 371.31250 CPU 0 DPC total execution time (s): 0.314967 CPU 0 DPC count: 100696 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 0.099863 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): 0.210029 CPU 2 ISR highest execution time (µs): 53.663548 CPU 2 ISR total execution time (s): 0.017925 CPU 2 ISR count: 941 CPU 2 DPC highest execution time (µs): 81.502620 CPU 2 DPC total execution time (s): 0.015608 CPU 2 DPC count: 1506 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 0.087591 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): 0.108872 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): 6.454341 CPU 4 DPC total execution time (s): 0.000133 CPU 4 DPC count: 48 _________________________________________________________________________________________________________ CPU 5 Interrupt cycle time (s): 0.254746 CPU 5 ISR highest execution time (µs): 8.424775 CPU 5 ISR total execution time (s): 0.029160 CPU 5 ISR count: 11462 CPU 5 DPC highest execution time (µs): 39.773578 CPU 5 DPC total execution time (s): 0.124142 CPU 5 DPC count: 23246 _________________________________________________________________________________________________________ CPU 6 Interrupt cycle time (s): 0.052612 CPU 6 ISR highest execution time (µs): 7.721557 CPU 6 ISR total execution time (s): 0.000015 CPU 6 ISR count: 2 CPU 6 DPC highest execution time (µs): 6.737650 CPU 6 DPC total execution time (s): 0.000332 CPU 6 DPC count: 152 _________________________________________________________________________________________________________ CPU 7 Interrupt cycle time (s): 0.087001 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 _________________________________________________________________________________________________________