RE: Does anyone run test win vs. linux and can share how muchfaster is linux than windows, please?

From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
To: <darrell@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
Date: Wed, 10 Aug 2005 12:20:51 -0700

Actually, I think Windows probably does dynamically shrink it's physical memory 
to accomodate the need of it's apps (Oracle in this case).  SQL Server does the 
same thing - it will take as much memory as it can get by default and will 
automatically shrink if Windows tells it to.  Memory management is very dynamic 
with Windows, but the main problem I've seen with memory on windows is that 
memory isn't freed cleanly when processes are killed or terminate abnormally.
 

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On 
Behalf Of Darrell Landrum


I've noticed (haven't precisely measured/tested yet) that given a machine 
running windows that has 2 GB of memory and an Oracle database (9.2.0.5 in my 
case) with an SGA of 250 MB and you increase your db_cache_size by 200 MB, you 
get 150 to 200 MBs of additional pagefile use and real physical memory use only 
increases slightly, 50 MB or less.  Now maybe, just maybe, Windows is 
dynamically reducing it's physical memory use to accomodate Oracle's need for 
more, but I seriously doubt that.



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RE: Does anyone run test win vs. linux and can share how muchfaster is linux than windows, please?

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