db4o Developer Community

I/O access times play a crucial role in the overall performance of a database.That is why we introduce two tools tomeasure the actual I/O performance of a system as seen by db4osimulate the behaviour of a slower system on a faster oneAll the code presented in this article can be found in the db4otools project / com.db4o.bench package. SVN: ...

Hello,   Sorry for the new thread, but the first one I posted became somewhat unclear. In client-server mode, it seems that CPU is going to 100% on the server thread when some client exits without closing its connection. I think, if this is right, that it is a very annoying problem, as this is something that always could happen ...

Daniel Ferreira Jorge: Is db4o reliable to be used in a website with this much concurrent users? Certainly. It's a question of architecture. If you're dealing with a sustained load of > 1 request per second, then you really need to be thinking about what alternatives you can take to make your environment scale by leaps ...

I tried to make db4o run on Apache Harmony[1], which is an open source J2SE implementation under Apache License V2. After 2 days struggling, fixing some bugs in Harmony, db4o runs successfully on Apache Harmony now!  All the test cases (except sun jre dependent test cases) are passed on Harmony. Now people have one more choice that ...