So why CSS Sprites?
Use of CSS sprites is an advanced HTML technique that can be a little controversial – at least in terms of questioning whether any potential performance benefits merits the effort…
Performance in a Webfusion shared service and guidelines for optimising PHP applications
I manage a few websites on a hobby / pro-bono basic, with this personal site being the smallest and the OpenOffice.org user forums being the largest (nicknamed usOOo after initials…
A PHP Cache Overview and Cache Tuning
This note is a mix of material. The new content is really for the phpBB developers and assumes a detailed understanding of the phpBB architecture. It's aim is to raise…
Use cases for phpBB
Any performance tuning analysis is best grounded in a hard target system to provide the instrumentation data. In the case of a product such as phpBB, the best we can…
VBA vs OOo Basic Performance II
This article follows on from VBA vs OOo Basic Performance where I discussed OOo Basic performance and coding efficiency, and one of the specific issues was “how long does it…
VBA vs OOo Basic Performance
I am currently working on a HOWTO on VBA to OOB migration. As part of this I have been doing a benchmark comparison on their relative performance. The preliminary results…
Performance Collapse in Systems
Introduction This paper describes a macroscopic characteristic of complex systems that can result in performance collapse in seemingly random and undiagnosable ways. In recent months I have had to troubleshoot…