Hi, my HP- G42 465LA have problems to process audio in real time... i use a program called LatencyMon and it talk about buffer underruns, and i liten drops outs, clicks & drops in the audio, i dont know what else to do (i turned off the wifi, use in the maximum performance energy plan, actualize drivers and bios, and finaly changed windows 7 32 bits to windows 64 bits... Ive analized with 2 latency programs, DPC Checker and Latencymon Here's a capture of latencymon and i detailed down the image, the inform that the program makes of what is causing that problems...
Here's the full inform:
MEASURED INTERRUPT TO USER PROCESS LATENCIES
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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): 1907,654957
Average measured interrupt to process latency (µs): 7,412769
Highest measured interrupt to DPC latency (µs): 287,431420
Average measured interrupt to DPC latency (µs): 1,322397
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MEASURED SMI, IPI AND CPU STALLS
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The SMI, IPI and CPU stalls value represents the highest measured interval that a CPU did not respond while having its maskable interrupts disabled.
Highest measured SMI or CPU stall (µs) 5,560429
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REPORTED ISRs
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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): 101,142857
Driver with highest ISR routine execution time: iaStor.sys - Intel Rapid Storage Technology driver - x64, Intel Corporation
Highest reported total ISR routine time (%): 0,051192
Driver with highest ISR total time: hal.dll - Hardware Abstraction Layer DLL, Microsoft Corporation
Total time spent in ISRs (%) 0,097248
ISR count (execution time <250 µs): 68884
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
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REPORTED DPCs
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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): 4110,126984
Driver with highest DPC routine execution time: ACPI.sys - Controlador ACPI para NT, Microsoft Corporation
Highest reported total DPC routine time (%): 0,192611
Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.
Total time spent in DPCs (%) 0,383687
DPC count (execution time <250 µs): 318917
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 1
DPC count (execution time 1000-1999 µs): 1
DPC count (execution time 2000-3999 µs): 0
DPC count (execution time >=4000 µs): 0
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REPORTED HARD PAGEFAULTS
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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: avastsvc.exe
Total number of hard pagefaults 3
Hard pagefault count of hardest hit process: 3
Highest hard pagefault resolution time (µs): 8,994152
Total time spent in hard pagefaults (%): 0,000010
Number of processes hit: 1
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 1,557860
CPU 0 ISR highest execution time (µs): 74,530493
CPU 0 ISR total execution time (s): 0,138379
CPU 0 ISR count: 59350
CPU 0 DPC highest execution time (µs): 170,227235
CPU 0 DPC total execution time (s): 0,626648
CPU 0 DPC count: 301868
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CPU 1 Interrupt cycle time (s): 3,416051
CPU 1 ISR highest execution time (µs): 92,137009
CPU 1 ISR total execution time (s): 0,025069
CPU 1 ISR count: 3223
CPU 1 DPC highest execution time (µs): 1116,649958
CPU 1 DPC total execution time (s): 0,079053
CPU 1 DPC count: 4804
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CPU 2 Interrupt cycle time (s): 0,610250
CPU 2 ISR highest execution time (µs): 82,075188
CPU 2 ISR total execution time (s): 0,028365
CPU 2 ISR count: 3366
CPU 2 DPC highest execution time (µs): 145,661654
CPU 2 DPC total execution time (s): 0,071707
CPU 2 DPC count: 6849
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CPU 3 Interrupt cycle time (s): 2,787656
CPU 3 ISR highest execution time (µs): 101,142857
CPU 3 ISR total execution time (s): 0,025918
CPU 3 ISR count: 2945
CPU 3 DPC highest execution time (µs): 4110,126984
CPU 3 DPC total execution time (s): 0,0816
35
CPU 3 DPC count: 5399
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Thanks!