Proccesor Interrupt Time too high!

Archived from groups: microsoft.public.windowsxp.general,microsoft.public.windowsxp.help_and_support (More info?)

Interrupts have a prioritized handling. You can use Perfmon to monitor
the processor interrupts per second. Just add the appropriate counter.
Normally, a range of 150-300 per second is normal. These interrupts
occur whether the PC is actively loaded with applications. By design
IDE controllers use IRQ's #14 & #15. You might run MSInfo32 and
see how your PC's IRQs are mapped.
From the tone of your post it sounds like you can comprehend more
advanced technical information. I would suggest your read the following
article to get a better insight into IRQ/APICs.
http://www.microsoft.com/whdc/system/sysperf/apic.mspx

"Stavros Sk." <stavros_sk@hotmail.com> wrote in message
news:%23WNx5CBsFHA.4044@TK2MSFTNGP09.phx.gbl...
> ?e??Hello everybody.
>
> As you know there is a hidden virtual task or proccess in Windows XP
> called
> "Interrupts Time". (And i say hidden because it's not shown on Task Manage
> of XP, but is shown on some other third-party task managers.
>
> Well, my problem is that this meter is really full most of the time i use
> the PC, even in times i don't do anything demanding (processor-wise), like
> for example opening Outlook Express or IE, and it conusumes all of the CPU
> power (2,6 Ghz) just by trying to launch an application, search the hard
> drive or even bringing up a new window of a program!
>
> After searching for the cause of this, i found out that what this meter
> really shows is the Interrupt Requests (IRQs) that various devices send to
> the CPU requiring its immediate attention. I guess that would mean that a
> particular device is maybe asking for too much attention because it
> probably
> malfunctions.
>
> So after disabling all peripheral devices and leaving only the necessary,
> i
> found out that the hard disk causes too many interrupts when i (or
> anything
> else) tries to access it. But what's strange is that the HD seems really
> fine. No S.M.A.R.T. warnings, no strange sounds, no failures, no bad
> sectors... It really seems to work just fine, and also the Ultra-ATA
> feature
> is enabled, so it shouldn't ask for so many interrupts (while a month or
> so
> before didn't).
>
> I would really appreciate if anyone would give me a clue about this like
> if
> it would be cause by software, something other besides the HD, or if
> anyone
> else besides me has experienced the same problem.
>
> Thanks in advance.
>
>
>

Archived from groups: microsoft.public.windowsxp.general,microsoft.public.windowsxp.help_and_support (More info?)

Thank you for helping me achive a more insight understanding on how these
details work. In fact, what you told me about IDE controllers gave me the
idea for an instant solution! I just switched the IDE cables on which the 2
HDDs are connected and Voila! A brand new processor without being
"interrupted" anymore  



"R. McCarty" <PcEngWork-NoSpam_@mindspring.com> wrote in message:
news 3k0baBsFHA.3788@TK2MSFTNGP12.phx.gbl...
> Interrupts have a prioritized handling. You can use Perfmon to monitor
> the processor interrupts per second. Just add the appropriate counter.
> Normally, a range of 150-300 per second is normal. These interrupts
> occur whether the PC is actively loaded with applications. By design
> IDE controllers use IRQ's #14 & #15. You might run MSInfo32 and
> see how your PC's IRQs are mapped.
> From the tone of your post it sounds like you can comprehend more
> advanced technical information. I would suggest your read the following
> article to get a better insight into IRQ/APICs.
> http://www.microsoft.com/whdc/system/sysperf/apic.mspx