I had a student implement an in-memory version of Derby for his honours thesis. I am under the impression that the code is just about ready to submit to the code tree. I can get you a copy of the jar file with the in-memory implementation if you want, but I am not sure that it has pass the derby-all testing.

darcy


On Sat, 20 May 2006 14:44:25 -0300, <[EMAIL PROTECTED]> wrote:

Date:   Thu, 18 May 2006 10:40:42 -0700 
From:   David Van Couvering <[EMAIL PROTECTED]>   
Subject:        Re: High throughput, min durability - tuning    
To:     [email protected] 
Cc:     [email protected], ashwinjay <[EMAIL PROTECTED]>   

Well, I have a couple of thoughts:


- Depending upon your OS, often the /tmp directory is actually mapped to memory, not disk. You might
try putting your database in /tmp


- There has been a proposal and I think some work on implementing an in-memory implementation of the store interface. I would highly recommend you think about building this yourself. There are experts on the team who would be more than glad to guide you in this effort. If nothing else you would learn some of the itnernals really well which could only help you in your efforts to tune the system.


David





--
Dr. Darcy Benoit
http://cs.acadiau.ca/~dbenoit/

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