Thanks for the suggestion on KernRate. I'll give it a try as I don't
thing LatencyMon works on XP..
DPCLAT reports DPC's in the range of 300-500 while the interrupt are
consuming 50% of CPU..
The problem usually occurs overnight and it will run for hours after a
reboot before the problem shows up.. I did change some of the boot-up
configuration last week while tracking a different problem and will see
what happens with indexing off again.
Thanks.
AL, K0VM
On 9/4/2012 11:56 AM, Peter G. Viscarola wrote:
Another VERY good option on XP... bravo. I had forgotten about this venerable
tool.
P
-----Original Message-----
From: Richard Clafton [mailto:[email protected]]
Sent: Tuesday, September 4, 2012 12:52 PM
To: Peter G. Viscarola; 'Neal Campbell'
Cc: [email protected]
Subject: RE: [FlexEdge] Interrupt debug
Take a look at KernRate for XP. Comes as part of the Resource KT. I have
used this in the past
to narrow down issues to Video and Sound drivers.
http://blogs.msdn.com/b/adioltean/archive/2004/12/21/329321.aspx
--
Richard A Clafton | the brITish guy | W5\G7EIX RIROC - Hosting -
Development - Technology http://www.riroc.com | [email protected] "Jack
of all trades, master of none, though often better than the master of one."
-----Original Message-----
From: [email protected] [mailto:flexedge-bounces@flex-
radio.biz] On Behalf Of Peter G. Viscarola
Sent: Tuesday, September 04, 2012 11:25 AM
To: Neal Campbell
Cc: [email protected]
Subject: Re: [FlexEdge] Interrupt debug
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]>
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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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