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Bart Sjerps

Bart Sjerps


On a never-ending mission to drive cost reduction and improved service levels to our customers. This can be applied to any technology - but I specialize on optimizing Oracle Database deployment at our customers, and offering alternatives for classic Data Warehouse / Business Intelligence initiatives. Take a look at my blog to find out how. Specialismen Oracle, performance tuning, virtualization & cloud computing. The keyword is Efficiency - lean & mean.

Oracle on VMware: Caging the license dragon


Virtualizing databases has huge financial and operational benefits – in particular with Oracle, where physically deployed database servers are typically heavily under-utilized which leads to huge over-spending on license cost. Of course poor efficiency on database servers leads to higher processing requirements, to higher number of CPUs purchased, and in turn [...]

The IOPS race is over


Infrastructure has always been a tough place to compete in. Unlike applications, databases or middleware, infrastructure components are fairly easy to replace with another make and model, and thus the vendors try to show off their product as better than the one from the competition. In case of storage subsystems, the [...]

Baking a cake: trading CPU for IO?


Sometimes I hear people claim that by using faster storage, you can save on database licenses. True or false? The idea is that many database servers are suffering from IO wait – which actually means that the processors are waiting for data to be transferred to or from storage – and [...]

Looking forward: 2016


We’re already over one week in 2016 and I realize I haven’t done much blogging lately. One of the things that kept me busy is development on Outrun, and the joint Oracle / EMC Solution Center (OSC) on which I intend to write a bit more going forward. Something I did about [...]

Silly Little Oracle Benchmark – RPM edition


A while ago Kevin Closson announced a new release of the well-known SLOB kit. SLOB is a simple but powerful toolkit that drives lots and lots of IO on a real Oracle database (so for performance testing of database platforms, it’s much better than synthetic IO tests). A previous version was bundled [...]