[Andreyash]

I have gone mad about my problem and almost loosing hope to solve it

When I play games after 5-30 minutes of play I get terrible FPS drop. The cpu gets overloaded with hardware interrupts and continue to do so even after I quit game and the system stays idle. So something happens during the game that kind of locks 1 out of my double core CPU. The furthest I was able to track this problem is to see in LatencyMonitor that the responsible process? is ACPI.sys. I have read that it could be either a driver or a hardware problem. But I am not able to understand which driver or which hardware and ACPI refers to a whole bunch of things. I updated all drivers on my PC, tried to switch off devices in device manager, but with no luck. The only think that helps to temporarily unload cpu (stop hardware interrupts) is when I uninstall and reinstall ACPIATK driver (not sure what that is) or Intell Device Management Interface driver from Asus site, with subsequent reboot of the system.

The problem does only occure when playing games. This is not likely to be a heat problem as CPU temperatures never exceed 75 degrees or GPU is never higher than 65.

I have a newly bought Asus n43sn with the following specs:

Intel HM65
i5-2410M processor
Nvidia geforce gt550m graphics card
4 gb of ram
Windows 7 x64 OC

I know people have similar problems on other machines, but there does not seem to be a single cause of the problem, and nothing I have tried helped me. With a similar Asus notebook I have not seen people suffer the same problem or perhaps they suffer alone? Perhaps after my post I can find a company ?

Would highly appreciate any help or advice!!!

This post has been edited by Andreyash: 13 October 2011 - 11:28 AM

[MagicAndre1981]

acpi.sys maybe power saving settings. Try to set the power plan to "high performance" and update the BIOS.

[Andreyash]

MagicAndre1981, on 13 October 2011 - 11:54 AM, said:

acpi.sys maybe power saving settings. Try to set the power plan to "high performance" and update the BIOS.

High MagicAndre, glad that you paid attention to my post. I saw you were helping people with similar problems (however not the ACPI.sys), but I was not able to follow your instructions with tracking the routs of the problem (I am using Russian Windows and whenever I try to use command line and generate a log file or the like, it gives me some error which I cannot read - the font is destorted)

But back to your current advice - I am using the high performance power plan and did the bios update long ago - no effect. It seems that any system update with subsequent reboot helps free the cpu from these terrible hardware interrupts, but it does not stay long - now I was playing a game for 20 minutes and then suddenly the same hardware interrupts stroke my PC

This post has been edited by Andreyash: 13 October 2011 - 01:49 PM

[myelin]

How many days have you spent in troubleshooting? how many hours will it take for a clean install?

[Andreyash]

myelin, on 13 October 2011 - 02:45 PM, said:

How many days have you spent in troubleshooting? how many hours will it take for a clean install?

hehe, good point. I would certainly do that if only it helped at least a single person with similar problems - whoever tried this never got a positive effect. Perhaps I should switch to XP as it might be windows 7 64 specific issue? But i do like windows 7

Besides it is a 1,5 month old notebook and the problem was there since very beginning (I guess it answers how much time I spent troubleshooting ) Mainly on my own from time to time, but now i decided to go live and ask people

[MagicAndre1981]

can you run the xperf commands and upload the ETL?

[Andreyash]

MagicAndre1981, on 13 October 2011 - 03:16 PM, said:

can you run the xperf commands and upload the ETL?

This is what I said earlier - I tried to follow your guidelines in xperf, but first it tells me to change a value in regestry, which I do easily, however after that it brings me a type of error in destorted font, which I cannot read (perhaps the reason is my Russian windows). Is there another way to use xperf (without the command window)?

[MagicAndre1981]

can you copy the error message to bing/google translator and translate them to English?

[Andreyash]

I speak Russian myself The problem is that the command window gives me an unreadable text (its not Russian, but rather strange symbols which make no sense) - please see the attached screenshot. AM I doing something wrong with xperf command? Could it be that my system is 64 bit, while CMD.exe is located in 32 windows folder? I am not good at these things, but really keen on getting to the route of my hardware interrupts

Attached File(s)

•  Xperf error.jpg (172.22K)
  Number of downloads: 18

This post has been edited by Andreyash: 14 October 2011 - 09:37 AM

[MagicAndre1981]

this is the correct text

xperf: error: NT Kernel Logger: Cannot create a file when that file already exists. (0xb7)

So you already run a xperf trace or a different tools runs in background (Process Explorer, Process Hacker, Resource Monitor from Windows) which also uses ETW to display data.

[Andreyash]

Thanks, that is something. However I do not seem to be running any of the programs you mention. I intentionally went into Process Explorer to see if there is any other process (screen shot below, there you can see my lovely Interrupts). Can you suggest me to close any of the displayed processes? Which of them might be already using xperf?

Attached File(s)

•  Process Explorer.jpg (369.26K)
  Number of downloads: 6

[Andreyash]

could it be that when installing SDK tools I did installed everything from the package, not just the WIN32 Development tools as you advise in the below link?

http://www.msfn.org/...ance-tools-kit/

[MagicAndre1981]

which other tools do you run?

[Andreyash]

well, a small progress again - seems like xperf was running on my PC already (do not know why, but just by a number of etl files I can tell that it was writing etl files every day).

I stopped it and run the command again - but it does not seem to work - the etl file that is created is 0 bites size. What am I doing wrong again?

Attached File(s)

•  Xperf.jpg (233.02K)
  Number of downloads: 4

[MagicAndre1981]

this is wired. Run xperf -stop to stop older traces. next run the xperf latency command.

[Andreyash]

ok, progress again. I was able to generate some data, which does not mean much to me, or perhaps I need a bottle of beer to understand

In "process" screen shot I can see the same ACPI.sys with no meaningful details (to me)
In Stack screen shot - what do I need to dig into: Idle or System?

I had to upload the Stack file to this address (http://www.filedropper.com/stack) because I reached upload quota here

Can you help me understand this? Do you need any other screen shots?

Thank you in advance, man, you already helping me a lot

Attached File(s)

•  process.jpg (270.78K)
  Number of downloads: 6

[Andreyash]

and my .etl file is not 0, but 1,4 GB!!!! thats why it took me some time to run all the operations on it

[Andreyash]

The problem seems to be with KiIdleloop according to the screen shot:
http://www.filedropper.com/kiidleloop

Please help me understand this

[MagicAndre1981]

can you compress the ETL? Try 7zip and compress it to 7z (ULTRA/LZMA2). This reduces the size a lot. Next upload the 7z file to mediafire.com

[Andreyash]

done, doc! what's my diagnosis?

http://www.mediafire...l3mr7a6zga2yk7h