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Re: st: RE: Memory usage in Stata 11 and 12

From   Nick Cox <>
Subject   Re: st: RE: Memory usage in Stata 11 and 12
Date   Fri, 29 Jul 2011 10:11:22 +0100

No "seems" about it! Stata 12 has automatic memory management. But
whatever limitations Windows imposes are limitations that remain.


On Fri, Jul 29, 2011 at 10:01 AM, roland andersson
<> wrote:
> Thank you Jan
> This answers my first question. I was aware of the limits of 32-bit OS
> but thought it was larger than 2.1GB. I obviously have more memory
> available which I thought would have at least some impact as WinXP 32
> bit can adress 4GB.
> I think there are possibilities to force Windows XP to load processes
> during the boot-process to upper memory in a better fashion, ie the
> /3GB parameter in boot.ini but would like an advice by someone more
> experienced before I start experimenting.
> Now waiting for information about Stata 12 as it seems to use memory
> differently than previous version.
> Regards
> Roland Andersson
> 2011/7/29 Jan Bryla <>:
>> See as a start.
>> /Jan
>> -----Original Message-----
>> From: [] On Behalf Of roland andersson
>> Sent: 29. juli 2011 09:03
>> To:
>> Subject: st: Memory usage in Stata 11 and 12
>> I found 1 MB of memory laying around at home and upgraded my laptop
>> Lenovo T400 from 2 GB to 3 GB RAM. However, this did not have any
>> effect on the available memory for Stata11. I could adress 1200 MB
>> both before and after the upgrade. I am using Windows XP 32-bit.
>> Is there any utility for windows that can help me find a way to make
>> more room for Stata? I know that I can use msconfig to block out some
>> processes, but it is difficult to know what processes that is not
>> necessary. I would rather have a utility that can decide where the
>> processes are loaded. Another possibility would be to load Stata early
>> during the boot process. Is that possible?
>> I have also had the experience that Stata had less memory available
>> after upgrading from Stata 9 to Stata 11. I wonder if Stata 12 is more
>> efficient in memory usage? If I upgrade will I have more, or less,
>> memory available for data, or does Stata still need uninterrupetd
>> memoryblocks?
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