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How to get the cause of high CPU usage by DPC / Interrupt Rate Topic: -----

#801 User is offline   MagicAndre1981 

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Posted 08 June 2012 - 02:57 PM

still the same:

Quote

Total = 2423 for module ndis.sys
Elapsed Time, > 2048 usecs AND <= 4096 usecs, 5, or 0.21%
Total, 2423


Every time you have the DPC issues, Punkbuster has some cpu usage. Try to update it. Does this fix it?


#802 User is offline   Anonymous101 

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Posted 08 June 2012 - 07:35 PM

Dear MagicAndre1981 Thank U very Much for Your Guide Very insightful especially for people like me that know nothing about this sort of thing I have followed your guide as far as i could understand i managed to get the results and got the second latency mon program u mentioned i have had these problems for about 2 or 3 months now and have been researching how to fix it until i found your guide and narrowed the problems down to the drivers from your guide
my issues are mainly my computer getting really hot and every now and again just shutting off i am guessing from the heat when i first had the issues i formatted my laptop and then had the same issues then i found out about the system interrupts not sure if explaining the issues will help the other ones are the pops in the sound my wireless adapter disabling its self mainly while downloading then i have to restart just to get it working and while playing a game star-craft 2 is usually when it gets bad the game lags i turned the graphics down but still lags then eventually my computer shuts off again with the heat i have checked all my drivers no little yellow symbol i found in system devices 7 drivers with no drivers for the device i have tried to research all i can at this point i am just shooting in the dark and am in need of some sort of help or guide any help would be greatly appreciated thank u for your time

#803 User is offline   MagicAndre1981 

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Posted 09 June 2012 - 04:55 AM

@Anonymous101

upload the xperf trace file and I'll take a look at it.

#804 User is offline   iatnuolas 

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Posted 09 June 2012 - 07:49 AM

View PostMagicAndre1981, on 08 June 2012 - 02:57 PM, said:

Every time you have the DPC issues, Punkbuster has some cpu usage. Try to update it. Does this fix it?


no luck :(

i have two updates though, when i built this computer my processor was doing this high pitched "whistle" sound when it was idling, so in the power options of windows 7, i changed the processor idle off (processor power management > processor idle disable > disable idle), and this gets rid of the noise (this was around two weeks ago or more), however, i noticed recently when i toggle this setting to off it immediately stops the stuttering of the music, even though it comes back about 10-20 seconds later :(

i also ordered a new pci network card (http://www.newegg.co...N82E16833166004) so hopefully this will resolve the issue :)

#805 User is offline   Anonymous101 

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Posted 09 June 2012 - 02:34 PM

View PostMagicAndre1981, on 09 June 2012 - 04:55 AM, said:

@Anonymous101

upload the xperf trace file and I'll take a look at it.

thanks for the reply how do i do that like i said i have no clue how to do anything i can however follow directions well should i run another trace i am not evan sure if i did it right not sure if this is right but i found a file named kernel.etl let me re fraze that i tryed to upload it takes to long and dosent up load is that the xperf trace file?

This post has been edited by Anonymous101: 09 June 2012 - 08:28 PM


#806 User is offline   MagicAndre1981 

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Posted 10 June 2012 - 03:17 AM

View Postiatnuolas, on 09 June 2012 - 07:49 AM, said:

i also ordered a new pci network card (http://www.newegg.co...N82E16833166004) so hopefully this will resolve the issue :)


this is also a cheap NIC and it is only 100MBit. If you need GBit you should use a card like this one:

Posted Image

http://www.newegg.co...N82E16833106033

This card is better and can process the DPCs on the chip to reduce the CPU load.

View PostAnonymous101, on 09 June 2012 - 02:34 PM, said:

i found a file named kernel.etl let me re fraze that i tryed to upload it takes to long and dosent up load is that the xperf trace file?


the kernel.etl is useless. Run this command:

xperf -on latency -stackwalk profile -Buffersize 1024 -MaxFile 256 -FileMode Circular && timeout -1 && xperf -d DPC_Interrupt.etl



capture 30s and press key to stop logging. Now Compress the DPC_Interrupt.etl as 7z or RAR (this reduces the size a lot!!). Now upload them RAR/7z file.

#807 User is offline   Anonymous101 

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Posted 10 June 2012 - 06:39 AM

ok i found the DPC_Interrupt.etl i cant get it under 500k to upload i managed to get it from 16mb to 2 but still cant get it smaller i tried i appreciate your time i don't mean to be making something so simple difficult just bare with me I also am getting this message when i try to use winzip to try and compress it
Action: Add (and replace) files
Include subfolders: yes
Save full path: no
You are trying to create a new Zip file on a disk that is read-only: "C:\Windows\System32\DPC_Interrupt.zipx".
Irrecoverable Error: The archive file cannot be opened for output.
So i just right clicked and sent to compressed folder on desktop and it became a zip folder smaller than the original

This post has been edited by Anonymous101: 10 June 2012 - 06:50 AM


#808 User is offline   MagicAndre1981 

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Posted 10 June 2012 - 07:06 AM

copy the DPC_Interrupt.etl to a fodler where you have writing permissions like the desktop or your document folder.

Now that you have the smaller zip upload it to Dropbox and post a link here.

#809 User is offline   Anonymous101 

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Posted 10 June 2012 - 03:47 PM

View PostMagicAndre1981, on 10 June 2012 - 07:06 AM, said:

copy the DPC_Interrupt.etl to a fodler where you have writing permissions like the desktop or your document folder.

Now that you have the smaller zip upload it to Dropbox and post a link here.


Sweet I Got the link https://www.dropbox....C_Interrupt.zip hope this is right again thank u for the help

#810 User is offline   iatnuolas 

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Posted 11 June 2012 - 02:44 PM

andre, i just popped in the new network card and installed the drivers, looks like we're off the realtek pci-e gbe drivers which is good i hope :D

i sent you the new report i took as soon as i started it up, i havent noticed any pops or stuttering unless i open a big program or something, also, i'm going to be getting my SSD sometime this week and i'll be reinstalling windows 7 onto that so hopefully that will clear up any issues if this didn't help :(

edit: opened up an application and it spiked, so i sent you a report from that too, z & z1

This post has been edited by iatnuolas: 11 June 2012 - 03:27 PM


#811 User is offline   lofagi 

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Posted 12 June 2012 - 02:25 PM

Hello guys,

(first of all sry for my English) i have the same problem here, high latency, when im using the internet. Until i'm using my comp offline there isn't problems, after i connect n try to download something, or turn on the uTorrent, spikes are comming. I tried almost everyting, new windows, new drivers, (Bios, chipset, lan...), i got a new lancard also. When installed it first time, it goes very well, but after a restart spikes appear again.

I downloaded that LatencyMon, and it says the problem is whit raspppoe.sys ! But i dont know what to do whit it, i tried to replace it, but it is protected and i cant change that.

Posted Image
Posted Image
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This is really annoying now...

What should i do?

#812 User is offline   MagicAndre1981 

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Posted 12 June 2012 - 11:13 PM

View PostAnonymous101, on 10 June 2012 - 03:47 PM, said:

Sweet I Got the link https://www.dropbox....C_Interrupt.zip hope this is right again thank u for the help


You have ACPI.sys DPC issues. This often indicates CPU temperature issues. Update the BIOS, clean the CPU cooler from dust, reset the Windows powerplan options. Does this help?

#813 User is offline   MagicAndre1981 

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Posted 12 June 2012 - 11:28 PM

View Postiatnuolas, on 11 June 2012 - 02:44 PM, said:

edit: opened up an application and it spiked, so i sent you a report from that too, z & z1


I can't see DPC spikes in the Z version. in the z1, the is 1 small TCPIP.sys spike.

Quote

Total = 326 for module tcpip.sys
Elapsed Time, > 512 usecs AND <= 1024 usecs, 2, or 0.61%
Elapsed Time, > 1024 usecs AND <= 2048 usecs, 1, or 0.31%
Total, 326


Which power plan do you use in Windows? I can see some PPM calls from the kernel and this indicates Power saving calls are done.

This post has been edited by MagicAndre1981: 12 June 2012 - 11:32 PM


#814 User is offline   MagicAndre1981 

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Posted 12 June 2012 - 11:31 PM

View Postlofagi, on 12 June 2012 - 02:25 PM, said:

I downloaded that LatencyMon, and it says the problem is whit raspppoe.sys ! But i dont know what to do whit it, i tried to replace it, but it is protected and i cant change that.

Posted Image
Posted Image
Posted Image


How do you connect to the internet?

Do you really need RASPPPoE?

http://en.wikipedia.org/wiki/RASPPPoE
http://en.wikipedia....l_over_Ethernet

#815 User is offline   lofagi 

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Posted 13 June 2012 - 12:55 AM

View PostMagicAndre1981, on 12 June 2012 - 11:31 PM, said:

View Postlofagi, on 12 June 2012 - 02:25 PM, said:

I downloaded that LatencyMon, and it says the problem is whit raspppoe.sys ! But i dont know what to do whit it, i tried to replace it, but it is protected and i cant change that.

Posted Image
Posted Image
Posted Image


How do you connect to the internet?

Do you really need RASPPPoE?

http://en.wikipedia.org/wiki/RASPPPoE
http://en.wikipedia....l_over_Ethernet


Im using a CableLan, n connect whit a wired modem, and im using the dial up all the time when im connecting to the internet.
Rasppoe.sys is a system file isnt it?

Should i try a wireless router whit a wireless lancard or wireless usb adapter?

#816 User is offline   lofagi 

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Posted 13 June 2012 - 01:51 AM

Btw, the problem is appear when i'm downloading, using utorrent, but when im just simple surfing, there is not that high dpc latency, or 1 sec freeze or didnt notice yet :]

#817 User is offline   iatnuolas 

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Posted 13 June 2012 - 04:49 AM

View PostMagicAndre1981, on 12 June 2012 - 11:28 PM, said:

Which power plan do you use in Windows? I can see some PPM calls from the kernel and this indicates Power saving calls are done.


i have everything set to maximum performance, with all the CPU/USB/PCI power savings set to disabled, also, the CPU is set to never idle due to the whistle noise

#818 User is offline   MagicAndre1981 

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Posted 13 June 2012 - 12:18 PM

View Postlofagi, on 13 June 2012 - 12:55 AM, said:

Im using a CableLan, n connect whit a wired modem, and im using the dial up all the time when im connecting to the internet.
Rasppoe.sys is a system file isnt it?

Btw, the problem is appear when i'm downloading, using utorrent, but when im just simple surfing, there is not that high dpc latency, or 1 sec freeze or didnt notice yet :]


this explains why it happens. This driver does the RAS Dialup over LAN.

View Postlofagi, on 13 June 2012 - 01:51 AM, said:

Should i try a wireless router whit a wireless lancard or wireless usb adapter?


If you have a wireles router use it. I'm also using a router and use WLAN and I have no issues.

#819 User is offline   MagicAndre1981 

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Posted 13 June 2012 - 12:27 PM

View Postiatnuolas, on 13 June 2012 - 04:49 AM, said:

i have everything set to maximum performance, with all the CPU/USB/PCI power savings set to disabled, also, the CPU is set to never idle due to the whistle noise


in this case something else hangs.

Run this command it adds some hang tracing:

xperf -on latency+DISPATCHER+POWER -stackwalk Profile+CSWITCH+ReadyThread -Buffersize 1024 -MaxFile 512 -FileMode Circular && timeout -1 && xperf -d Wait_trace.etl



Zip the generated file and send it to me.

#820 User is offline   Anonymous101 

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Posted 14 June 2012 - 02:22 PM

View PostMagicAndre1981, on 12 June 2012 - 11:13 PM, said:

View PostAnonymous101, on 10 June 2012 - 03:47 PM, said:

Sweet I Got the link https://www.dropbox....C_Interrupt.zip hope this is right again thank u for the help


You have ACPI.sys DPC issues. This often indicates CPU temperature issues. Update the BIOS, clean the CPU cooler from dust, reset the Windows powerplan options. Does this help?



Ok so i went to update the bios and my laptop shut off at the end of the flash and update i lost my windows and had to re install it i then took the laptop apart cleaned the dust and am currently installing the drivers and everything as we speek so far no issues thanks a million i will be in touch if any issues arise i think it was the dust as far as resetting the power plan i havent done anything with it Thnks a Again Life saver

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