_________________________________________________________________________________________________________ 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. 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 0:01:35 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: DELL-INSPIRON-5 OS version: Windows 10, 10.0, version 2009, build: 19044 (x64) Hardware: Inspiron 5567, Dell Inc. BIOS: 1.5.0 CPU: GenuineIntel Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz Logical processors: 4 Processor groups: 1 Processor group size: 4 RAM: 16282 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed (WMI): 2712 MHz Reported CPU speed (registry): 2712 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): 482,10 Average measured interrupt to process latency (µs): 24,130062 Highest measured interrupt to DPC latency (µs): 424,90 Average measured interrupt to DPC latency (µs): 6,463907 _________________________________________________________________________________________________________ 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): 126,181785 Driver with highest ISR routine execution time: ACPI.sys - Sterownik ACPI dla systemu NT, Microsoft Corporation Highest reported total ISR routine time (%): 0,003612 Driver with highest ISR total time: ACPI.sys - Sterownik ACPI dla systemu NT, Microsoft Corporation Total time spent in ISRs (%) 0,003835 ISR count (execution time <250 µs): 286 ISR count (execution time 250-500 µs): 0 ISR count (execution time 500-1000 µs): 0 ISR count (execution time 1000-2000 µs): 0 ISR count (execution time 2000-4000 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): 2891,065634 Driver with highest DPC routine execution time: ntoskrnl.exe - NT Kernel & System, Microsoft Corporation Highest reported total DPC routine time (%): 0,058414 Driver with highest DPC total execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation Total time spent in DPCs (%) 0,332398 DPC count (execution time <250 µs): 69667 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-10000 µs): 410 DPC count (execution time 1000-2000 µs): 0 DPC count (execution time 2000-4000 µs): 1 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: svchost.exe Total number of hard pagefaults 2622 Hard pagefault count of hardest hit process: 1520 Number of processes hit: 20 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 2,518998 CPU 0 ISR highest execution time (µs): 126,181785 CPU 0 ISR total execution time (s): 0,014713 CPU 0 ISR count: 286 CPU 0 DPC highest execution time (µs): 595,339233 CPU 0 DPC total execution time (s): 0,883703 CPU 0 DPC count: 54282 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 0,738536 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): 339,404867 CPU 1 DPC total execution time (s): 0,064389 CPU 1 DPC count: 2678 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 1,510183 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): 2891,065634 CPU 2 DPC total execution time (s): 0,207066 CPU 2 DPC count: 8678 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 0,805417 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): 293,976032 CPU 3 DPC total execution time (s): 0,120212 CPU 3 DPC count: 4440 _________________________________________________________________________________________________________