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Solved DPC Latency issues


Russs

New Member
Posts
29
#1
Recently been getting significant latency issues on my desktop after roughly a day/two of use (hibernating at night). This causes audio stuttering and static. Issue seems to be caused by ndis, and tcpip.

Using DPC Latency monitor I noticed it would skyrocket to red whenever the internet got a burst of use, for example refreshing a browser page, or receiving a message on skype. A la:


Spikes are page refreshes. Everything else is yellow (yellow not green as the software has issues with Win8).

Ran a LatencyMon scan with my network card disabled:


Quite the difference, stayed completely in the yellow in the DPC monitor.

Network card enabled:


Looks like tcpip and ndis are the offending drivers.

Been happening for a few weeks now. Restarting solves the problem but only for a day or two. All drivers are updated as far as I can tell.

Tried:
chkdsk r f
sfc scannow
dism scan/restore
defragment
disk cleanup
full virus scan
driver updates (as best as I can tell)
lots of other small solutions that escape memory

Computer Type PC/Desktop
System Manufacturer/Model Number PCSpecialist
OS Windows 8
CPU Intel® Core™i5 Quad Core Processor i5-3570 (3.4GHz) 6MB Cache
Motherboard ASUS® P8Z77-M: MICRO-ATX, USB 3.0, SATA 6GBs, ATI®CrossFireX
Memory 8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
Graphics Card 2GB AMD RADEON™ HD7870 - DVI,HDMI,2 mDP - DX® 11, Eyefinity 4 Capable
Sound Card ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Monitor(s) Displays LG IPS
Screen Resolution 1920x1080
Keyboard Logitech k360
Mouse Logitech G700
PSU 450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
Case COOLERMASTER ELITE 430 BLACK CASE
Cooling INTEL SOCKET LGA1155 STANDARD CPU COOLER
Hard Drives 2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
Internet Speed 120mb/ps Ethernet wired cable
Browser Chrome
Antivirus Avast Pro Internet Security
Speakers Realtek

Any help would be appreciated.
 
Last edited:

My Computer

System One

  • OS
    Windows 8
    Computer type
    PC/Desktop
    System Manufacturer/Model
    PCSpecialist
    CPU
    Intel® Core™i5 Quad Core Processor i5-3570 (3.4GHz) 6MB Cache
    Motherboard
    ASUS® P8Z77-M: MICRO-ATX, USB 3.0, SATA 6GBs, ATI®CrossFireX
    Memory
    8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
    Graphics Card(s)
    2GB AMD RADEON™ HD7870 - DVI,HDMI,2 mDP - DX® 11, Eyefinity 4 Capable
    Sound Card
    ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
    Monitor(s) Displays
    LG IPS
    Screen Resolution
    1920x1080
    Hard Drives
    2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
    PSU
    450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
    Case
    COOLERMASTER ELITE 430 BLACK CASE
    Cooling
    INTEL SOCKET LGA1155 STANDARD CPU COOLER
    Keyboard
    Logitech k360
    Mouse
    Logitech G700
    Internet Speed
    120mb/ps
    Browser
    Chrome
    Antivirus
    Avast Pro Internet Security

fireberd

Beach Observer
VIP Member
Pro User
Inverness, FL

Posts
1,811
#2

My Computer

System One

  • OS
    Win 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home Built
    CPU
    i7 6700K
    Motherboard
    ASUS ROG Maximus VIII Hero
    Memory
    16 Gb G Skill TridentZ DDR4 3400
    Graphics Card(s)
    Intel (i7 CPU)
    Sound Card
    RealTek Integrated
    Monitor(s) Displays
    27" Dell SE2717HR
    Screen Resolution
    1920X1080
    Hard Drives
    500GB Samsung 850 SSD, 3TB for backups
    PSU
    EVGA Supernova 750 G2
    Case
    BeQuiet Silent Base 600
    Cooling
    Deepcool Captain 120EX
    Keyboard
    Microsoft Wireless
    Mouse
    Logitech wireless
    Internet Speed
    Cable - 100MB Downlink
    Browser
    Edge/Firefox
    Antivirus
    Microsoft
    Other Info
    Sonar Platinum 64 bit recording studio software with MOTU 896Mk3 Hybrid recording interface unit.

Russs

New Member
Posts
29
#3
Hello,

You mean use LatencyMon? I have been. Got a few snapshots of it in my first post to illustrate the problem. I know there's issues with the latency checker but the latency problems it highlights are still perfectly valid and correlate with LatencyMon.
 

My Computer

System One

  • OS
    Windows 8
    Computer type
    PC/Desktop
    System Manufacturer/Model
    PCSpecialist
    CPU
    Intel® Core™i5 Quad Core Processor i5-3570 (3.4GHz) 6MB Cache
    Motherboard
    ASUS® P8Z77-M: MICRO-ATX, USB 3.0, SATA 6GBs, ATI®CrossFireX
    Memory
    8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
    Graphics Card(s)
    2GB AMD RADEON™ HD7870 - DVI,HDMI,2 mDP - DX® 11, Eyefinity 4 Capable
    Sound Card
    ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
    Monitor(s) Displays
    LG IPS
    Screen Resolution
    1920x1080
    Hard Drives
    2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
    PSU
    450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
    Case
    COOLERMASTER ELITE 430 BLACK CASE
    Cooling
    INTEL SOCKET LGA1155 STANDARD CPU COOLER
    Keyboard
    Logitech k360
    Mouse
    Logitech G700
    Internet Speed
    120mb/ps
    Browser
    Chrome
    Antivirus
    Avast Pro Internet Security

fireberd

Beach Observer
VIP Member
Pro User
Inverness, FL

Posts
1,811
#4
I mainly responded since I saw you had the invalid DPC Latency Checker displayed.

Here is what the DPC Latency checker site says about Win 8

Windows 8 Compatibility: The DPC latency utility runs on Windows 8 but does not show correct values. The output suggests that the Windows 8 kernel performs badly and introduces a constant latency of one millisecond, which is not the case in practice. DPCs in the Windows 8 kernel behave identical to Windows 7. The utility produces incorrect results because the implementation of kernel timers has changed in Windows 8, which causes a side effect with the measuring algorithm used by the utility
You need to delete that and only work with the Resplendence program. However, I've never been able to digest all the info that the Resplendence program provides.
 

My Computer

System One

  • OS
    Win 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home Built
    CPU
    i7 6700K
    Motherboard
    ASUS ROG Maximus VIII Hero
    Memory
    16 Gb G Skill TridentZ DDR4 3400
    Graphics Card(s)
    Intel (i7 CPU)
    Sound Card
    RealTek Integrated
    Monitor(s) Displays
    27" Dell SE2717HR
    Screen Resolution
    1920X1080
    Hard Drives
    500GB Samsung 850 SSD, 3TB for backups
    PSU
    EVGA Supernova 750 G2
    Case
    BeQuiet Silent Base 600
    Cooling
    Deepcool Captain 120EX
    Keyboard
    Microsoft Wireless
    Mouse
    Logitech wireless
    Internet Speed
    Cable - 100MB Downlink
    Browser
    Edge/Firefox
    Antivirus
    Microsoft
    Other Info
    Sonar Platinum 64 bit recording studio software with MOTU 896Mk3 Hybrid recording interface unit.

Russs

New Member
Posts
29
#5
Even though there's inconsistencies, the baseline it provides gives a more user friendly view than LatencyMon. Its easier to look past the inaccuracies it gives and just at the major spikes. In other words I'm only using it for monitoring of hard faults which I then compare time wise with LatencyMon to get greater detail (and both programs always agree with each other). Its not causing any harm and its not effecting the latency itself, the benefits outweigh the drawbacks to using it.

Thank-you though :)
 

My Computer

System One

  • OS
    Windows 8
    Computer type
    PC/Desktop
    System Manufacturer/Model
    PCSpecialist
    CPU
    Intel® Core™i5 Quad Core Processor i5-3570 (3.4GHz) 6MB Cache
    Motherboard
    ASUS® P8Z77-M: MICRO-ATX, USB 3.0, SATA 6GBs, ATI®CrossFireX
    Memory
    8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
    Graphics Card(s)
    2GB AMD RADEON™ HD7870 - DVI,HDMI,2 mDP - DX® 11, Eyefinity 4 Capable
    Sound Card
    ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
    Monitor(s) Displays
    LG IPS
    Screen Resolution
    1920x1080
    Hard Drives
    2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
    PSU
    450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
    Case
    COOLERMASTER ELITE 430 BLACK CASE
    Cooling
    INTEL SOCKET LGA1155 STANDARD CPU COOLER
    Keyboard
    Logitech k360
    Mouse
    Logitech G700
    Internet Speed
    120mb/ps
    Browser
    Chrome
    Antivirus
    Avast Pro Internet Security

tabascojoe

Member
Member
Posts
18
#6
Its the intel network driver. To be specific the 82579LM based Network Controller. I had the same issue on several computers and used the below solution to solve all issues...

http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/DPC-latency-audio-mouse-skip-and-stutter-on-t420s/td-p/602481

If you don't feel like reading the post on how to fix it, basically you need to install an older driver from this link:
Drivers & software - HP Support Center

Don't worry if your system is not an HP..it will work with any system that has the 82579LM
 

My Computer

System One

  • OS
    Windows 8.1 update 1
    CPU
    E8400
    Motherboard
    abit Fatal1ty F-I90HD mATX
    Memory
    4gb DDR2
    Sound Card
    Bitstream to Home Theater
    Case
    Antec Fusion HTPC Case
    Internet Speed
    30
    Browser
    Chrome

tabascojoe

Member
Member
Posts
18
#7
Its the intel network driver. To be specific the 82579LM based Network Controller. I had the same issue on several computers and used the below solution to solve all issues...

http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/DPC-latency-audio-mouse-skip-and-stutter-on-t420s/td-p/602481

If you don't feel like reading the post on how to fix it, basically you need to install an older driver from this link:
Drivers & software - HP Support Center

Don't worry if your system is not an HP..it will work with any system that has the 82579LM
I just searched your mobo and found it uses Realtek 811F network controller. Whats funny is people are reportng the same issue and the driver from here solves it:

http://www.realtek.com.tw/downloads...d=5&Level=5&Conn=4&DownTypeID=3&GetDown=false
 

My Computer

System One

  • OS
    Windows 8.1 update 1
    CPU
    E8400
    Motherboard
    abit Fatal1ty F-I90HD mATX
    Memory
    4gb DDR2
    Sound Card
    Bitstream to Home Theater
    Case
    Antec Fusion HTPC Case
    Internet Speed
    30
    Browser
    Chrome

Russs

New Member
Posts
29
#8
Uninstalled avast, issue disappeared. Reinstalled with just the free version, nothing bad yet. Think some of the pro features might've screwed me over.

Regardless, thank-you for your help!
 
Last edited:

My Computer

System One

  • OS
    Windows 8
    Computer type
    PC/Desktop
    System Manufacturer/Model
    PCSpecialist
    CPU
    Intel® Core™i5 Quad Core Processor i5-3570 (3.4GHz) 6MB Cache
    Motherboard
    ASUS® P8Z77-M: MICRO-ATX, USB 3.0, SATA 6GBs, ATI®CrossFireX
    Memory
    8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
    Graphics Card(s)
    2GB AMD RADEON™ HD7870 - DVI,HDMI,2 mDP - DX® 11, Eyefinity 4 Capable
    Sound Card
    ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
    Monitor(s) Displays
    LG IPS
    Screen Resolution
    1920x1080
    Hard Drives
    2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
    PSU
    450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
    Case
    COOLERMASTER ELITE 430 BLACK CASE
    Cooling
    INTEL SOCKET LGA1155 STANDARD CPU COOLER
    Keyboard
    Logitech k360
    Mouse
    Logitech G700
    Internet Speed
    120mb/ps
    Browser
    Chrome
    Antivirus
    Avast Pro Internet Security

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