Computer stuttering randomly. And high Latency on windows 7

[damiansevren]

I recently formatted my hard drive and did a clean install of windows 7.

Lately ive noticed that while watching youtube videos or listening to music in windows media player, ill get these random stutter moments where the computer just seems to slow down for a second. It makes my audio/ video/ and mouse all stutter.

I ran DPC Latency checker and found that at the moments I had stutters, the latency checker was spiking up to max in the red.

I read around online that it is the network card that causes this, so i disabled my network card and the latency checker remained in the green.
Then I tried reconnecting my internet via wifi while the network card was disabled, and once again I started getting spikes.
I also tried updating my network card to the latest driver and now its even worse....

can someone please help me? These random stutters are starting to get annoying.



Also a side note:
Ive noticed that if the driver is enabled, and im not doing anything network related its all fine. But once I do something like load a page or load a video, thats when I start to get the random stutters.




Update: I ran latencymon and I found that flash player is causing many hardpage faults, and that a driver called ndis.sys - NDIS 6.20 driver is causing my latency spikes.


Here is the summary report
_________________________________________________________________________________________________________
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 executed by 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 0:04:44 (h:mm:ss) on all processors in the system.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: HOME-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
CPU: GenuineIntel Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
Logical processors: 4
Processor groups: 1
RAM: 4095 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 2399.0 MHz
Measured CPU speed: 2419.0 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.


_________________________________________________________________________________________________________
MEASURED KERNEL TIMER LATENCIES
_________________________________________________________________________________________________________
Highest measured kernel timer latency (µs): 212652.907971


_________________________________________________________________________________________________________
MEASURED SMIs AND CPU STALLS
_________________________________________________________________________________________________________
Highest measured SMI, IPI or CPU stall (µs) 11.520098


_________________________________________________________________________________________________________
REPORTED DPCs
_________________________________________________________________________________________________________
Highest DPC routine execution time (µs): 208139.252188
Driver with highest DPC routine execution time: ndis.sys - NDIS 6.20 driver, Microsoft Corporation

Highest reported total DPC routine time (%): 0.435644
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 (%) 1.124863

DPC count (execution time <250 µs): 1021759
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 91
DPC count (execution time 1000-1999 µs): 19
DPC count (execution time 2000-3999 µs): 6
DPC count (execution time >=4000 µs): 0


_________________________________________________________________________________________________________
REPORTED ISRs
_________________________________________________________________________________________________________
Highest ISR routine execution time (µs): 176.154648
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%): 0.192044
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0.381740

ISR count (execution time <250 µs): 719712
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 HARD PAGEFAULTS
_________________________________________________________________________________________________________
Process with highest pagefault count: none

Total number of hard pagefaults 177
Hard pagefault count of hardest hit process: 160
Highest hard pagefault resolution time (µs): 12107.716132
Total time spent in hard pagefaults (%): 0.002924
Number of processes hit: 0


_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 10.419946
CPU 0 ISR highest execution time (µs): 176.154648
CPU 0 ISR total execution time (s): 1.269166
CPU 0 ISR count: 391647
CPU 0 DPC highest execution time (µs): 208139.252188
CPU 0 DPC total execution time (s): 7.574303
CPU 0 DPC count: 720024
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 4.278226
CPU 1 ISR highest execution time (µs): 163.234264
CPU 1 ISR total execution time (s): 0.975257
CPU 1 ISR count: 108459
CPU 1 DPC highest execution time (µs): 5715.138808
CPU 1 DPC total execution time (s): 2.447289
CPU 1 DPC count: 120504
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 3.371561
CPU 2 ISR highest execution time (µs): 117.656524
CPU 2 ISR total execution time (s): 1.096221
CPU 2 ISR count: 109371
CPU 2 DPC highest execution time (µs): 2391.261359
CPU 2 DPC total execution time (s): 1.391336
CPU 2 DPC count: 86113
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 3.193827
CPU 3 ISR highest execution time (µs): 152.849937
CPU 3 ISR total execution time (s): 0.995919
CPU 3 ISR count: 110235
CPU 3 DPC highest execution time (µs): 375.929137
CPU 3 DPC total execution time (s): 1.365521
CPU 3 DPC count: 95242
_________________________________________________________________________________________________________

 

[damiansevren]

So... is no one going to help me?

 

[bassfisher6522]

Have you checked your flash player to make sure it's up to date and that the hardware accelerator is enabled.

Adobe - Flash Player : Help - Display Settings

 

[damiansevren]

Yes my flash player is up to date and hardware acceleration is enabled.

I dont think its a problem with flash player though cause I get the stuttering even when the browser is closed and im just watching videos on windows media player.

 

[bassfisher6522]

Try running scf /scannow

http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

 

[jbonapar]

Same Problem - Do you have a Dell?

I started having the excat same problem, I have a Dell XPS with all the good stuff, exactly the same problem. I did some searching and noticed many dell people, particularly in the last 2 years are having this problem. I tried disabling everything and as long as wifi is going, its there. Truly frustrating.

For me, i can actually hear two successive "clicks" at the time when my computer stutters.

I've written so many people and noone seems to be offereing anything except, update drivers, scandisk, bios updates, etc. I did everything. Updated everything from intell site, dell site, microsoft, etc..>Shut down all processes except microsoft processes and still happens.

I'm curious if you learned anything new?

 

[damiansevren]

I do not have a dell. I have an HP pavillion. My problem happened when I installed windows 7 onto it.

I honestly gave up a long time ago, ive tried asking professionals, tried going to multiple forums, tried sending it to geeksquad to fix, no one has a solution. Its apparently just a problem within the windows 7 kernel and has not been fixed yet. I think it might simply have to be that my processor isnt compatible with win7 since its kind of old (even though its high end). Im gonna try reinstalling win7 maybe and see if that helps, if not then im just going to buy a new computer and stay the hell away from HP and dell. Since all they do is put crapware on computers that mess them up.

 

[Golden]

Hi,

Your'e giving up too quickly. If you want to reinstall, then do it without the crapware using this tried and tested technique:

http://www.sevenforums.com/tutorials/219487-clean-reinstall-factory-oem-windows-7-a.html

Once installed and activated, let Windows perform all the updates, and then see if your system is more stable.

Post back if you need more help.

Regards,
Golden

 

[damiansevren]

UHmm im not giving up too quickly. Ive been trying to fix this for months now. I have a lot of games and other important files on my computer and I dont have the time to back them up and do a clean install as im really busy with school. Ive just learned to live with it. However if anyone knows of a magical solution out there that can fix ndis.sys causing high latency then please by all means reply to this thread. xx

 

[fracrox]

I have the same problem, i turn on my pc after 5 to 10 min opening or not opening videos it gets laggy everything mouse video sound etc, i just restart straight away then is gone again until i turn it off then on again... any suggestions?

 

[Golden]

I have a lot of games and other important files on my computer and I dont have the time to back them up and do a clean install as im really busy with school.

Mmm, they can't be that important then, can they? Seriously, you can't find 2 hours to backup your important files and perform a clean install on your bloated system, but you are prepared to chase magic bullet fixes for what you think is a problem with a sys file?

Bite the bullet and try a clean install - we are here to help you.

Regards,
Golden

 

[mooselegs]

I have this issue, too -- but mine happens certain times of the day. I think mine stems from the neighbor's WIFI router being closer to my computer than my own router is, and theirs overpowers my signal. I try to change the broadcasting channel, but it doesn't work. When I changed from 2.4 GHz to 5 GHz in the router (as my WIFI card is dual bandwidth) the issue completely stopped and everything works fine.

I'm wondering if this happens more in an area with a lot of WIFI traffic. I do have a lot of neighbors streaming WIFI, and a limited number of channels, so maybe that would work for you?

I wish there was a better solution, because if I'm on my netbook, I can't get onto my wifi network when it's broadcasting 5GHz.

 

[lastmarine]

HI im new to the forum, signed up because i'd reached the end of my teather in trying to come up with a solution to the same problem everyone else seems to be suffering. First let me start by saying that this issue is actually seriously affecting my career at the moment, since im a DJ and using PC software Serato which utilises digitising audio in real time from my turntables. This latency issue is causing pops and clicks from my playing audio which despite the the obvious audio failings, also has the knockon affect of causing slowing through the skips which puts my tunes out of time with one another! I HAVE TO SOLVE THIS IT IS DRIVING ME CRAZY.

I have a Dell inspiron N5040 laptop, windows 7 home premium edition service pack 1. I have 4gb ramm & 400gb HD.
After running a DPC latency test i'm shown i have recurring kernel timer latency of over 16000. Obviously unacceptable.

I have tried disabling the CPU throttling by switching all power settings to high performance and min/max processor state to 100%. I have disabled my networking and wifi as this is not necessary for what i need for mixing. I have disabled ALL none essential processes in task manager. I have disabled all none essential hardwares in device manager webcam, pci family controller, wifi etc. After all this although latency is still there causing the same issues.

Please has anyone got anything else to suggest as a possible cause of this latency?

much thanks

 

[AlexRozett]

This problem also happend to me.
And it just came out i dont know like on it's own.
I did almost anything.
Updating my Realtek with HD Audio worked.Now everytime i get the sound crackle and dropouts i just update it with HD RealTek audio.
What you should do more :
Always keep your PC updated.That means to check your Win Upadter always!
Download TuneUp Utilities and tweak ur PC.
Also clean ur PC,dust can chocke CPU from working normaly.(My problem was over usage of CPU,when scrolling,opening new windows etc).This is maybe funny to you but it will help.
BIOS isn't the problem in most cases.DONT ATEMPT to upade your BIOS if your doing it first time,u can fry your motherboard.
This problem as i see from all my internet browsing is because the Win 7 64 bit.
I hope this will work for you guys,best solution is to reinstall the system if the problem persists,clean entire HDD and ur PC from dust.If everything fails just buy a new PC or contact your PC seller,or install other OS.

Sorry for my English.
Best Regards,Alex from Serba

 

[lastmarine]

ok so good news at least for me, I really hope it helps out others but i fear my ignorance will not have been continued by all of you.

After uninstalling all bloatware, updating all drivers and BIOS. Disabling all non-essential hardware and software from processess to start-ups to side bars etc etc. Changing all settings to maximum performance including power settings i suddenly realised that the issue only seemed to occur when i was running the laptop off the mains ie off the charger!!! THEN IT HIT ME! I was using a old charger from a previous laptop also a dell but not the same one, but i noted that it was when ever i was using this charger that the problem occured. When using the proper laptop charger the problem siezed! Hope some of you out there have been equally stupid, if not then not sure what else to suggest

 

[AlexRozett]

And further more i dont think the problem to this is in any PC configuration.Its all to the OS Win 7 64 bits.
But this kinda problems should remind you too keep your PC clean,as in softver and the physical components of a computer.
Cheers,Alex

 

[AlexRozett]

Alright mates heres the deal with this problem.
The most frequently problem that is causing the sound to drop out and high latencies on your computer mostly come from your graphic card drivers (this problem occurs at my computer).
Now i dont know is this because the nVidia cards,because i'm using GForce GT 9600.
I found out that if i disable the the drivers in my device manager my latency drops to green.So for my case the problem is definitely the graphic card drivers.I dont think there is a hardware problem with my graphic card,even tho my computer specs are almost 5 years old .

Processor :Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz
RAM memory : 4,00 GB
Graphics : GForce 9600 GT 1 GB

I dont think my computer specs are either the problem since people with 5 times better spec have same or even worse problems than me.
I did everything,everything is up to date : Graphic,Chipset,BIOS,Audio,Utilities.
So i dont know if there will be any good possible solution to this,either for Nvidia to release some hot fix for this.I will continue to search the web for the solution,possibly maybe to downgrade my drivers and see how it works.

But a man that finds the solution for this problem either should get a medal or money for it,since the people who are charged to fix these kinda problems don't do their work.
And i am srsly thinking of taking a big dump on Nvidia and her products.


P.S this problem at me comes and goes.Sometimes i get this problem and sometimes it works just fine. . .and that makes me even more confused.

Best regards Alex.