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From Ugo Cei <...@apache.org>
Subject Re: the 1mn test: first jackrabbit performance and scalability tests
Date Fri, 12 Nov 2004 09:39:44 GMT
Il giorno 12/nov/04, alle 10:22, David Nuescheler ha scritto:

> b) there are still a couple of functional blocks that
> are unfinished and we are still manipulating the core
> quite a bit so i am not sure whether it is the time to
> do performance tuning already, especially since i
> think we are in a somewhat acceptable range already.

Right. In reality my aim was to show some of my colleagues here, who 
believe that the *only* way to store data in a fast, reliable and 
scalable way is to use some big-name RDBMS (read "Oracle"), that there 
are other ways that can be as fast or maybe faster.

Now, with my benchmarks I can show them some interesting numbers re raw 
speed, but I am more concerned about reliability and scalability. For 
instance, by stopping the benchmark abruptly (Ctrl-C) I managed to put 
the workspace in a state where I couldn't restart the benchmark without 
deleting the workspace and restarting from scratch. I am also concerned 
about what would happpen if I were to make the benchmark 
multi-threaded: are the current persistence-manager and filesystem 
implementations threadsafe or more work has to be done in this area?


Ugo Cei - http://beblogging.com/

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