Hi, I've been having very high DPC latency for about a month, I just don`t know what to do anymore, I followed a few step on some previus steps here on the forum and didn`t worked, I ran the LatencyMon and it shows:
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 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 0:20:39 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: VITOR-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: MS-7972, MSI, B150M MORTAR (MS-7972)
CPU: GenuineIntel Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz
Logical processors: 4
Processor groups: 1
RAM: 8139 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3408 MHz
Measured CPU speed: 1 MHz (approx.)
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.
WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.
_________________________________________________________________________________________________________
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): 13250,713792
Average measured interrupt to process latency (µs): 2,280507
Highest measured interrupt to DPC latency (µs): 1983,566026
Average measured interrupt to DPC latency (µs): 0,548052
_________________________________________________________________________________________________________
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): 170,413732
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0,194334
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0,233285
ISR count (execution time <250 µs): 2300680
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): 534,412559
Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Highest reported total DPC routine time (%): 0,060981
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0,344368
DPC count (execution time <250 µs): 9527439
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 1
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: svchost.exe
Total number of hard pagefaults 8488
Hard pagefault count of hardest hit process: 1978
Highest hard pagefault resolution time (µs): 1517374,270246
Total time spent in hard pagefaults (%): 1,755713
Number of processes hit: 41
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 41,772858
CPU 0 ISR highest execution time (µs): 170,413732
CPU 0 ISR total execution time (s): 11,563136
CPU 0 ISR count: 2300680
CPU 0 DPC highest execution time (µs): 219,480634
CPU 0 DPC total execution time (s): 13,607473
CPU 0 DPC count: 9081357
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 13,337886
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): 200,512911
CPU 1 DPC total execution time (s): 1,053677
CPU 1 DPC count: 113227
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 4,628605
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): 534,412559
CPU 2 DPC total execution time (s): 0,285988
CPU 2 DPC count: 74545
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 14,609245
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): 242,228873
CPU 3 DPC total execution time (s): 2,122005
CPU 3 DPC count: 258311
_________________________________________________________________________________________________________
System Manufacturer? No, I ordered the pc on the internet
Laptop or Desktop? desktop
Exact model number (if laptop, check label on bottom)
OS ? (Windows 10, 8.1, 8, 7, Vista) windows 7 home premium
x86 (32bit) or x64 (64bit)? x64
Service pack? service pack 1
What was original installed OS on system? came with windows 10
Is the OS an OEM version (came pre-installed on system) or full retail version (YOU purchased it from retailer)? full retail (both win 10 and win 7)
Age of system? (hardware) about 6 to 7 months
Age of OS installation? about a week
Have you re-installed the OS? yes, it came with win 10, and then i restored to win 7
CPU intel core i5-7500
RAM (brand, model, which slots are you using?) patriot memory ddr4 8gb single slot
Video Card geoforce gtx 1070
MotherBoard - (if NOT a laptop) msi b150i mortar (MS 7279)
Power Supply - brand & wattage (if laptop, skip this one) Thermaltake Smart Series 600W
What security software are you using? (Firewall, antivirus, antimalware, antispyware, and so forth) only Malwarebytes
Are you using proxy, vpn, ipfilters or similar software? no
Are you using Disk Image tools? (like daemon tools, alcohol 52% or 120%, virtual CloneDrive, roxio software) no
Are you currently under/overclocking? Are there overclocking software installed on your system? If there is any it came from the store where I bought
What i've done so far:
Updated all the drivers using snappy driver installer
updated the latest bios driver
did dism /online /cleanup-image /checkhealth (and gave me an erro 87)
Advanced disk cleanup with cleanmgr
sfc /scannow (the result was ok)
Check you system partition:
Event [0]:
Log Name: Application
Source: Microsoft-Windows-Wininit
Date: 2018-01-11T23: 17: 01,000
Event ID: 1001
Task: N / A
Level: Information
Opcode: N / A
Keyword: Classic
User: N / A
User Name: N / A
Computer: Vitor-PC
Description:
Checking the file system in C:
The file system type is NTFS.
A disk check has been scheduled.
Windows will now check the disk.
CHKDSK is checking files (stage 1 of 5) ...
194816 records of processed files.
File verification completed.
377 records of large files processed.
0 invalid file records processed.
0 EA records processed.
84 records of new analyzes processed.
CHKDSK is verifying indexes (stage 2 of 5) ...
249024 entries of indexes processed.
Index check completed.
0 checked non-indexed files.
0 recovered non-indexed files.
CHKDSK is checking the security descriptors (stage 3 of 5) ...
194816 SDs / SIDs of processed files.
Clearing 275 file index $ SII unused index entries 0x9.
Clearing 275 file index $ SDH 0x9 unused index entries.
Clearing 275 unused security descriptors.
Security descriptor verification completed.
27105 processed data files.
CHKDSK is checking the USN diary ...
33950992 USN bytes processed.
Completed USN Journal Check.
CHKDSK is verifying the file data (step 4 of 5) ...
194800 files processed.
Completed file data verification.
CHKDSK is checking for free space (stage 5 of 5) ...
200912217 Free processed clusters.
Free space verification completed.
CHKDSK found free space marked as allocated in the
of the master file table (MFT).
CHKDSK has found free space marked as allocated in the volume bitmap.
Windows has made fixes to the file system.
976527359 KB of total disk space.
172441452 KB and 155029 files.
112344 KB in 27106 indexes.
0 KB in bad sectors.
324691 KB in use by system.
65536 KB occupied by log file.
803648872 KB available on disk.
4096 bytes in each allocation unit.
Total of 244131839 allocation units on disk.
200912218 allocation units available on disk.
Internal information:
00 f9 02 00 82 c7 02 00 28 67 05 00 00 00 00 00 ........ (g ......
c4 00 00 00 54 00 00 00 00 00 00 00 00 00 00 00 .... T ...........
00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 ................
Windows has finished checking the disk.
Wait while the computer restarts.
if someone could help me, Thanks for the help!
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 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 0:20:39 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: VITOR-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: MS-7972, MSI, B150M MORTAR (MS-7972)
CPU: GenuineIntel Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz
Logical processors: 4
Processor groups: 1
RAM: 8139 MB total
_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3408 MHz
Measured CPU speed: 1 MHz (approx.)
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.
WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.
_________________________________________________________________________________________________________
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): 13250,713792
Average measured interrupt to process latency (µs): 2,280507
Highest measured interrupt to DPC latency (µs): 1983,566026
Average measured interrupt to DPC latency (µs): 0,548052
_________________________________________________________________________________________________________
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): 170,413732
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0,194334
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0,233285
ISR count (execution time <250 µs): 2300680
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): 534,412559
Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Highest reported total DPC routine time (%): 0,060981
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in DPCs (%) 0,344368
DPC count (execution time <250 µs): 9527439
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 1
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: svchost.exe
Total number of hard pagefaults 8488
Hard pagefault count of hardest hit process: 1978
Highest hard pagefault resolution time (µs): 1517374,270246
Total time spent in hard pagefaults (%): 1,755713
Number of processes hit: 41
_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 41,772858
CPU 0 ISR highest execution time (µs): 170,413732
CPU 0 ISR total execution time (s): 11,563136
CPU 0 ISR count: 2300680
CPU 0 DPC highest execution time (µs): 219,480634
CPU 0 DPC total execution time (s): 13,607473
CPU 0 DPC count: 9081357
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 13,337886
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): 200,512911
CPU 1 DPC total execution time (s): 1,053677
CPU 1 DPC count: 113227
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 4,628605
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): 534,412559
CPU 2 DPC total execution time (s): 0,285988
CPU 2 DPC count: 74545
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 14,609245
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): 242,228873
CPU 3 DPC total execution time (s): 2,122005
CPU 3 DPC count: 258311
_________________________________________________________________________________________________________
System Manufacturer? No, I ordered the pc on the internet
Laptop or Desktop? desktop
Exact model number (if laptop, check label on bottom)
OS ? (Windows 10, 8.1, 8, 7, Vista) windows 7 home premium
x86 (32bit) or x64 (64bit)? x64
Service pack? service pack 1
What was original installed OS on system? came with windows 10
Is the OS an OEM version (came pre-installed on system) or full retail version (YOU purchased it from retailer)? full retail (both win 10 and win 7)
Age of system? (hardware) about 6 to 7 months
Age of OS installation? about a week
Have you re-installed the OS? yes, it came with win 10, and then i restored to win 7
CPU intel core i5-7500
RAM (brand, model, which slots are you using?) patriot memory ddr4 8gb single slot
Video Card geoforce gtx 1070
MotherBoard - (if NOT a laptop) msi b150i mortar (MS 7279)
Power Supply - brand & wattage (if laptop, skip this one) Thermaltake Smart Series 600W
What security software are you using? (Firewall, antivirus, antimalware, antispyware, and so forth) only Malwarebytes
Are you using proxy, vpn, ipfilters or similar software? no
Are you using Disk Image tools? (like daemon tools, alcohol 52% or 120%, virtual CloneDrive, roxio software) no
Are you currently under/overclocking? Are there overclocking software installed on your system? If there is any it came from the store where I bought
What i've done so far:
Updated all the drivers using snappy driver installer
updated the latest bios driver
did dism /online /cleanup-image /checkhealth (and gave me an erro 87)
Advanced disk cleanup with cleanmgr
sfc /scannow (the result was ok)
Check you system partition:
Event [0]:
Log Name: Application
Source: Microsoft-Windows-Wininit
Date: 2018-01-11T23: 17: 01,000
Event ID: 1001
Task: N / A
Level: Information
Opcode: N / A
Keyword: Classic
User: N / A
User Name: N / A
Computer: Vitor-PC
Description:
Checking the file system in C:
The file system type is NTFS.
A disk check has been scheduled.
Windows will now check the disk.
CHKDSK is checking files (stage 1 of 5) ...
194816 records of processed files.
File verification completed.
377 records of large files processed.
0 invalid file records processed.
0 EA records processed.
84 records of new analyzes processed.
CHKDSK is verifying indexes (stage 2 of 5) ...
249024 entries of indexes processed.
Index check completed.
0 checked non-indexed files.
0 recovered non-indexed files.
CHKDSK is checking the security descriptors (stage 3 of 5) ...
194816 SDs / SIDs of processed files.
Clearing 275 file index $ SII unused index entries 0x9.
Clearing 275 file index $ SDH 0x9 unused index entries.
Clearing 275 unused security descriptors.
Security descriptor verification completed.
27105 processed data files.
CHKDSK is checking the USN diary ...
33950992 USN bytes processed.
Completed USN Journal Check.
CHKDSK is verifying the file data (step 4 of 5) ...
194800 files processed.
Completed file data verification.
CHKDSK is checking for free space (stage 5 of 5) ...
200912217 Free processed clusters.
Free space verification completed.
CHKDSK found free space marked as allocated in the
of the master file table (MFT).
CHKDSK has found free space marked as allocated in the volume bitmap.
Windows has made fixes to the file system.
976527359 KB of total disk space.
172441452 KB and 155029 files.
112344 KB in 27106 indexes.
0 KB in bad sectors.
324691 KB in use by system.
65536 KB occupied by log file.
803648872 KB available on disk.
4096 bytes in each allocation unit.
Total of 244131839 allocation units on disk.
200912218 allocation units available on disk.
Internal information:
00 f9 02 00 82 c7 02 00 28 67 05 00 00 00 00 00 ........ (g ......
c4 00 00 00 54 00 00 00 00 00 00 00 00 00 00 00 .... T ...........
00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 ................
Windows has finished checking the disk.
Wait while the computer restarts.
if someone could help me, Thanks for the help!
