On 23 Jul 2010, at 12:22pm, Black, Michael (IS) wrote:

> #1 Are you using the same database file on both Windows and Linux or are you 
> creating it independently on each?  I'm wondering if your Windows system is 
> fragmented (much more likely than your Linux system is to frag).  How full is 
> the disk that your database is on and have you defragged that disk?
> #2 How long does your fread program take to run?  If must be much less then 
> 40 seconds I would imagine.
> #3 How long does "select * from mytable" take when it's the first thing you 
> run on both Linux and Windows?
> #4 Have you tried changing your caching to "System Cache" instead of 
> "Programs" jsut to see what happens?

Change the extension of the file from .db to .sqlite or something else.  
Windows treats .db files in a special way.

Simon.
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