Jump to content

adlib

Member
 View Profile  See their activity

  • Posts

    16

  • Joined

  • Last visited

  • Donations

    0.00 USD 

  • Country

    Switzerland

 Content Type 

Posts posted by adlib

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted

    alright... i have to find a proper way to do the disable/enable stuff with devCon first. i don't do things like this regularely so it will need some time to get into but after a first look, it seems to be fairly understandable. the main concept is the make a shortcut which starts the task (enalbe/disable) then... right? should i start a new topic for this things... i dont want to spam this important topic with OT stuff ;)

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted

    seems ATHEROS wireless drivers just do not like Windows 7 full stop.

    - I have seen and heard of this problem on other computers with Intel chipsets and other things causing the same problem. for me it seems to be a bug in windows 7.

    thx exactly what i thought after all those tests... it doesnt matter if i use win7 from 2009 or win7 with all latest updates and it doesnt matter if i use atheros driver from 2009 or the latest... it is always the same behaviour in latency-monitor!

    btw. is there a way to make a script or bat-file to deactivate and reactivate the wlan-card in the device-manager? it would be an acceptable workaround to have the possibility to switch it on and off directly from desktop ;)

    btw2. the hardware on/off switch at the vaio only deactivates the driver... the spikes still happen when i use this switch... i have to manually deactivate the atheros in device manager... thats quite annoying

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted

    hi andre

    thx for your help so far... any more ideas?

    i've tried a lot of different drivers for the atheros this weekend... odler drivers, new drivers... no difference. as soona s the atheros 9285 driver is activate ndis.sys creats latency spikes. the same for the battery... sony drivers and win7 drivers both make acpi.sys create latency. when i deactivate atheros and battery in the device manager the laptop runs perfect... really annoyed with this situation :(

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted · Edited by adlib

    i've downloaded the latest win SDK and installed xperf according to your tut... should be the latest then right? i've forget to do this buffer thing...

    and i will get all win7 updates/sp1 if you say it is a real help... a support-guy at my music-store told me not to update anything after a clean new win isntallation when i want to use the pc as DAW only...

    i download all this stuff now... its 297mb... should be quite quick

    updates 30/94 is done... which ETL file should i redo with buffer size set correct? the CPU or the interrupt_CPU?

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted

    and here is what LatencyMon 2.01 says:

    Your system appears to be suitable for playing real time audio without dropouts.

    Time running: 0:00:16

    Highest DPC routine execution time (µs): 1459

    Responsible driver: ACPI.sys (ACPI-Treiber für NT, Microsoft Corporation)

    DPC count (execution time <500 µs): 351251

    DPC count (execution time 500-999 µs): 49

    DPC count (execution time 1000-1999 µs): 52

    DPC count (execution time 2000-3999 µs): 0

    DPC count (execution time >=4000 µs): 0

    Highest ISR routine execution time (µs): 87

    Responsible driver: iaStor.sys (Intel Matrix Storage Manager driver - x64, Intel Corporation)

    ISR count (execution time <250 µs): 185011

    ISR count (execution time 250-499 µs): 0

    ISR count (execution time 500-999 µs): 0

    ISR count (execution time 1000-1999 µs): 0

    ISR count (execution time >=2000 µs): 0

    Highest pagefault resolution time (µs): 7

    Hard pagefault count (total): 51

    Number of processes hit: 1

    Pagefault count of hardest hit process: 51

    Process with highest pagefault count: svchost.exe (PID: 960, Hostprozess für Windows-Dienste, Microsoft Corporation)

    Note: all execution times are calculated based on a CPU clock speed of 2261 MHz. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted

    i'm back

    have done the traces... here are the files from interrupt_cpu and cpu (wasn't sure which one you'll need after reading your tut, sorry)

    hope you can find the problems!

    i've tried to disable apci battery management and the atheros wlan card with the device manager and all latency problems are gone... :( hope we find a way so i don't need to disable those devices evertime i will use the laptop for audio (as daw)

    https://rapidshare.com/files/485789426/cpu.ETL

    https://rapidshare.com/files/4182837958/interrupt_cpu.ETL

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted · Edited by adlib

    with the setup (ati catalyst setup for example...) :unsure: is there a chance that it works inside the device manager?

    how to install in device manager when i only get exe or install-files and no INF?

    and one additional quastion: where do i get proper usbport drivers? the search for intel 55 chipset drivers only leads me to a chipset driver-set where intel states that apg and usb is not port of the driverset?

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted · Edited by adlib

    i can't install the original ati drivers for the GPU nor can i install original bios update for the intel chipset... only the ones provided by vaio support work! i'll try to install original network and usb and wlan drivers as soon as i'm home but i guess they're blocked by sony aswell.... :wacko: then i can upload the ETL (i'm not at that computer right now)

    is there a way to work around sony's driver-block-strategy?

    0

    How to get the cause of high CPU usage by DPC / Interrupt

    in Windows Tips 'n' Tweaks

    Posted · Edited by adlib

    hi andre!

    i've readed almost the whole thread this morning... i have some similiar issues as users described here before.

    i have a sony vaio vpcec2s1e with an intel h55 chipset and i5 processor running win7 64bit. i've reinstalled windows from a clean dvd, no vaio installation!

    now i have dpc latence caused by ndis.sys, acpi and usbport.sys... but i can only install all the updates available from sony vaio support, not the original intel ar ati stuff... any ideas? (i can post the files later when i'm back home)

    0
×
×
  • Create New...