Re: XP2 slowdowns?

I came across this:
http://www.microsoft.com/technet/prodtechnol/winxppro/maintain/sp2mempr.mspx

Since our game is script driven (Lua) I'm wondering if that other 50% of 
Windows CPU time is being used to check the execute permissions of the 
software Data Execution Prevention (DEP) permission? It specifically 
cautions JIT code may be broken. We don't mark the page block as executable 
and load the Lua bytecodes into RAM allocated form the heap.

Has anybody else using scripts noticed any performance penalties? Can 
anybody see any reason why the DEP could be the cause?

Thanks,
Brett

----- Original Message ----- 
From: "mike wuetherick" <[email protected]>
To: <[email protected]>
Sent: Monday, September 06, 2004 12:06 PM
Subject: Re: [GD-Windows] XP2 slowdowns?


> i've read other reports online about similar slowdowns related to sp2, but 
> nothing pointing to a specific issue.
>
> i think it's just windows twiddling with the swap file and other crap - 
> there needs to be a way to tell windows 'the computer is busy now, dont do 
> anything until further notice'...i've seen situations where windows 
> decides to random start defragging mid-game that type of thing.
>
> just idiotic behavior from such a so-called 'smart os' but i digress.
>
> unfortunately the only way to probably fix this is to shut down services 
> that are running maintenance or whatever, which isn't exactly an 
> 'end-user' fix...
>
> we updated one machine to sp2 and it was an all-day nightmare, haven't 
> even considered putting it onto anything else yet.
>
> the college i teach at isn't going near it for a long time i know as well.
>
> mike w
> www.realityfactory.ca
>
> Brett Bibby wrote:
>
>> Hello,
>> We upgraded some of our development machines using XP to SP2 and the 
>> upgraded machines _sometimes_ run our game slower now. When I watch the 
>> processes while the game runs, the game frequently drops to 20-50% of 
>> CPU, with the windows idle occupying the other 50%, so our game is 
>> sometimes not consuming as much of the CPU as desired. Has anybody else 
>> noticed any speed problems with their games?
>> Thanks,
>> Brett
>>
>
>
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