Hi all,
I'm using XP SP3 on and AMD X2 processor (dual core)
I've been trying to troubleshoot a performance issue that shows up as
occasional stuttering during 720p video playback; some problems
running an mpeg2 encoder - frame synch errors on the second pass.

I logged onto to a second profile on my machine (very lightly used)
and these problems don't exist there, only on my main profile.
For example, with the mpeg-2 encoding, 70 frames per sec on my main
profile, but 90 fps using the second profile - error free.

Anybody have any insights as to this behavior?
TIA,
Dave

"Dave and Rosanna" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi all,
> I'm using XP SP3 on and AMD X2 processor (dual core)
> I've been trying to troubleshoot a performance issue that shows up as
> occasional stuttering during 720p video playback; some problems
> running an mpeg2 encoder - frame synch errors on the second pass.
>
> I logged onto to a second profile on my machine (very lightly used)
> and these problems don't exist there, only on my main profile.
> For example, with the mpeg-2 encoding, 70 frames per sec on my main
> profile, but 90 fps using the second profile - error free.
>
> Anybody have any insights as to this behavior?
> TIA,
> Dave

One of your accounts probably loads up some tasks at logon time that the
other one doesn't. Check the Task Manager to see what's going on.

"Pegasus [MVP]" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
> "Dave and Rosanna" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> Hi all,
>> I'm using XP SP3 on and AMD X2 processor (dual core)
>> I've been trying to troubleshoot a performance issue that shows up as
>> occasional stuttering during 720p video playback; some problems
>> running an mpeg2 encoder - frame synch errors on the second pass.
>>
>> I logged onto to a second profile on my machine (very lightly used)
>> and these problems don't exist there, only on my main profile.
>> For example, with the mpeg-2 encoding, 70 frames per sec on my main
>> profile, but 90 fps using the second profile - error free.
>>
>> Anybody have any insights as to this behavior?
>> TIA,
>> Dave
>
> One of your accounts probably loads up some tasks at logon time that the
> other one doesn't. Check the Task Manager to see what's going on.

Not that I can see. The task manager on the better-performing profile has
ctfmon.exe while
the other doesn't. In both cases the cpu used was only 0 - 2% before
starting my encoder test.

I have resolved the problem by recreating the offending profile following
the
procedure documented in here:
http://support.microsoft.com/kb/811151

However, what this corruption was about, or why it only affected this
esoteric performance issue,
(at least as far as I could seems) is an absolute mystery.
Perhaps user profiles inevitably "go bad" after a few years of use and
should be recreated
as an act of preventative maintenance ?



"Dave and Rosanna" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
> "Pegasus [MVP]" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>>
>> "Dave and Rosanna" <(E-Mail Removed)> wrote in message
>> news:(E-Mail Removed)...
>>> Hi all,
>>> I'm using XP SP3 on and AMD X2 processor (dual core)
>>> I've been trying to troubleshoot a performance issue that shows up as
>>> occasional stuttering during 720p video playback; some problems
>>> running an mpeg2 encoder - frame synch errors on the second pass.
>>>
>>> I logged onto to a second profile on my machine (very lightly used)
>>> and these problems don't exist there, only on my main profile.
>>> For example, with the mpeg-2 encoding, 70 frames per sec on my main
>>> profile, but 90 fps using the second profile - error free.
>>>
>>> Anybody have any insights as to this behavior?
>>> TIA,
>>> Dave
>>
>> One of your accounts probably loads up some tasks at logon time that the
>> other one doesn't. Check the Task Manager to see what's going on.
>
> Not that I can see. The task manager on the better-performing profile has
> ctfmon.exe while
> the other doesn't. In both cases the cpu used was only 0 - 2% before
> starting my encoder test.
>