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From Brian McCallister <bri...@apache.org>
Subject Re: Faster Derby with relaxed durability - WAS Re: Is HSQLDB compatible with ASF license?
Date Mon, 14 Feb 2005 18:50:02 GMT
How hard would it be to abstract the filesystem access completely and 
go directly against in-memory implementations, rather than "getting 
sloppy" with disk i/o?

6 seconds per test is still pretty expensive time wise.


On Feb 14, 2005, at 1:44 PM, Sunitha Kambhampati wrote:

> Daniel John Debrunner wrote:
>> Dain Sundstrom wrote:
>>> That looks like it would do it.  Did you time the code?  I'm curious 
>>> how much faster is database creation (create db, tablses, insert 
>>> data) and how much faster is say some select and update queries.
>> I ran a quick check with a single Derby test suite and overall it was
>> around twice as fast, database was created and test cases run and
>> results checked in under six seconds per test.
> So I made the necessary changes per Dan's email;  built insane jars 
> and then ran the entire derbyall test suite..  With these options set 
> , derbyall test suite  ran around twice as fast on my laptop (t40;ide 
> disks).
> Sunitha.

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