Ubuntu 10.04: Why is ksmd eating CPU cycles? | Interphero Miscellany. Okay, just stumbled upon this on my server and blogging it for later reference. When using kvm, on newer Ubuntu versions, ksmd appears, which actually compares memory pages between virtual machines and only stores duplicate pages once - this saves RAM but consumes CPU. If you don't do over-commit on memory, you can safely turn it off.
Archive 22. May 2012
Features | ownCloud.org. Hmm, now I just need iOS access to the OwnCloud and I think I have a longer installation session ahead of me. I probably won't be able to completely give up Dropbox or similar services (and I don't want to), but maybe it will be enough to switch back to the free version of Dropbox if I only manage the large amounts of data on my own server.
TypeQuery. Generic functions for Python. Only a simple variant with a restricted target range, but definitely worth considering for some things. Currently still single-dispatch on the first argument, but multiple dispatch is planned. At the moment, it is therefore pretty much identical in function to simplegeneric by PJE. And very similar to my multidispatch, in which I try to replicate the model of Clojure generic methods. I really should work on multidispatch again. Or just play more with clojure-py, then I can use "the real thing" right away.
PostgreSQL: Documentation: 8.4: hstore. From the series "Things your database can do that you might not know": Key-Value-Stores within a PostgreSQL data field. Or also poor-mans-object-notation. Or simply practical when you want to store loosely structured data but don't want to constantly adjust the schema - the schema is then the primary data for the order of the model, the dependencies, cardinalities, etc. - and the hstore field then stores the additional manifestations that, for example, result dynamically from business requirements. Sometimes the better alternative to a denormalized property table. And it's been there since the 8.x versions (though it is a loadable module).
TeamPostgreSQL - PostgreSQL Web Admin GUI Tools. Looks good, a web interface for administering PostgreSQL databases that comes close to PGAdminIII and doesn't look as spartan as PHPPGAdmin. However, I have problems accessing databases from a project - it seems not everything is quite cleanly implemented, especially in the handling of sequences. Therefore, I can't say anything yet about whether it is performant. The whole thing comes with a Java-Tomcat server, so you can install and run it locally directly.