Re: 10ms IST latency

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Dean Ramsier (ramsiernospam_at_nospam.com)
Date: 11/12/04 

Date: Fri, 12 Nov 2004 16:18:50 -0500

That's way too long. Is this a retail image? Are there lots of debug
messages printing out that are slowing things down? What is the priority of
your IST? Is it lower than some other very busy thread in the system? The
latency should be in microseconds, not milliseconds. 

-- 
Dean Ramsier - eMVP
"smiller" <smiller@discussions.microsoft.com> wrote in message
news:AEA25957-09AD-44B4-A072-F475C0CBC7B1@microsoft.com...
> I am new to Win CE and cant understand why I am having such a long latency
on
> my IST.
>
> My hardware is generating a 1kHz interrupt on IRQ5. I am running  CE 4.2.
I
> measured over 10 ms (milliseconds!!!!!) of delay between the interrupt and
my
> IST.
>
> Can anyone explain why there is such a delay? Is it how I built my OS
image?
>
>