If the INTERRUPT portion of his CPU usage is at 40% to 50% during disk 
indexing, there's a big problem with his system.

Well, come to think of it, regardless of what's going on if the interrupt 
portion of his CPU usage is 40% to 50% at any time, I think there's probably a 
big problem with his system.

Assuming the description of the problem is accurate, and there's not some other 
underlying source, he's either got a driver bug or a piece of misbehaving 
hardware.... or both.

Peter
K1PGV

> -----Original Message-----
> From: Neal Campbell [mailto:[email protected]]
> Sent: Tuesday, September 4, 2012 12:21 PM
> To: Peter G. Viscarola
> Cc: Al K0VM; [email protected]; [email protected]
> Subject: Re: [FlexEdge] Interrupt debug
> 
> Take a look and see if you have turned off Windows Search in the
> Administrative Services control panel. I bet its Windows indexing the file
> system.
> 
> 73
> On Sep 4, 2012, at 12:13 PM, "Peter G. Viscarola" <[email protected]>
> wrote:
> 
> > It seems you have a device that's causing an "interrupt storm."
> >
> > It's tough to diagnose this without the sort of tools a developer would use.
> >
> > If *I* were trying to diagnose this, I'd use XPERF... it's not easy to use, 
> > and
> iit only provides limited support for Windows XP.  It ships as part of the
> Windows SDK.
> >
> > I'm sorry, I know that's not particularly helpful.  But I'm not aware of a
> simpler tool that'll help diagnose this problem (which is pretty rare).
> >
> > P
> >
> >> -----Original Message-----
> >> From: [email protected] [mailto:flexedge-bounces@flex-
> >> radio.biz] On Behalf Of Al K0VM
> >> Sent: Tuesday, September 4, 2012 12:01 PM
> >> To: [email protected]
> >> Cc: [email protected]
> >> Subject: Re: [FlexEdge] Interrupt debug
> >>
> >> Dudley,
> >>   Thanks for the response, but Process Explorer show the top two CPU
> >> usages as System Idle and Interrupts !
> >>   Strange..
> >>   Luckily, a reboot fixes it and PSDR continues to run in spite of it..
> >> I doubt if earlier versions of PSDR would.
> >>
> >> AL, K0VM
> >>
> >> On 9/4/2012 10:27 AM, FlexRadio Support, Dudley Hurry wrote:
> >>> Al,
> >>>
> >>> If you open Task manager, to Show process (for all users, checked at
> >>> the bottom)  If you click the "CPU"  title at the top, the highest
> >>> CPU usage process will start at the top.  Eating that much CPU
> >>> should be easy to determine which process is causing the big CPU burn.
> >>> Hopefully is something that you will recognize,   at least in Win7 you
> >>> can do a right click and it will tell you from which folder that
> >>> process came from.   Things like remote control SW (VNC variants)  can
> >>> go into the weeds from time to time,  or some driver with a memory
> leak.
> >>>
> >>> Hope this helps.
> >>>
> >>>
> >>> 73,
> >>> Dudley
> >>>
> >>> WA5QPZ
> >>> FlexRadio Systems
> >>>
> >>> (512) 535-4713, Option 2
> >>> Email: [email protected] <mailto:[email protected]>
> >>> Web: www.flexradio.com <http://www.flex-radio.com>
> >>>
> >>>
> >>>
> >>> Chat
> >>>
> >>
> <https://www.crossloop.com/FlexRadioSupport?type=email%22+target%3D
> >> %22
> >>>
> >>
> _blank%22%3E%3Cimg+border%3D%220%22+src%3D%22https://www.crossl
> >> oop.com
> >>> /images/badge-sm-
> >> gray.jpg%22+alt=%22Get+help+from+Dudley+%28WA5QPZ&%23
> >>> 41;+Hurry>
> >>>
> >>> FlexRadio Systems(tm)
> >>> 4616 W Howard Ln Ste 1-150
> >>> Austin, TX 78728
> >>>
> >>> logo
> >>> /Tune In Excitement(tm)/
> >>> PowerSDR(tm) is a trademark of FlexRadio Systems
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> On Tue, Sep 4, 2012 at 10:05 AM, Al K0VM <[email protected]
> >>> <mailto:[email protected]>> wrote:
> >>>
> >>>         This is a bit off-topic but...
> >>>         I am having a problem with, what appears, to be a torrent of
> >>>    interrupts consuming 50% of CPU...  They arrive after several
> >>>    hours of operation and don't really seem to effect current
> >>>    versions of PSDR.
> >>>         Once in the torrent mode, I can shut down all apps,
> >>>    disconnect all external hardware ( except the monitors ) and the
> >>>    interrupt portion of the the CPU usage remains at 40-50% ( as
> >>>    reported by Process Explorer ).
> >>>         Is there any debugging app for WinXP available that will
> >>>    indentify the source of interrupts ?
> >>>
> >>>    AL, K0VM
> >>>
> >>>
> >>>    _______________________________________________
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> >>>    http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz
> >>>    This is the FlexRadio Systems e-mail Reflector called FlexEdge.
> >>>     It is used for posting topics related to SDR software innovation
> >>>    and other technical SDR topics.
> >>>
> >>>
> >>
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> >> is used for posting topics related to SDR software innovation and
> >> other technical SDR topics.
> >
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> > for
> posting topics related to SDR software innovation and other technical SDR
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