MASS_DIFF_ALLOWED in Defines.h maxTandemPrecursorDelta precursorMassTolerance Read More

Newer Mac processors have (Quad-Core Intel Xeon “Nehalem”) have “Virtual Cores” which “which allows two threads to run simultaneously on each core.” This raised questions like, “do these virtual cores run at half the speed (or worse because of scheduling overhead)? If I have the option, should I set my appliction (GFS, an ABM, etc.) [...] Read More

This assuages my performance fears of porting to a MySQL database. The MEMORY (HEAP) Storage Engine Read More

The one everyone thinks is useful, the one on SourceForge, is out of date. Google Code has a more recent fork of the project HERE. Usage: Google on MCPConnection. In general I’m surprised at the low amount of MySQL support in OS X. Read More

Grand Central Dispatch: Wikipedia Apple PDF Read More

It’s nearly impossible to find this link on the UNC website. So, for those just wanting to log in, here’s the link you want: UNC TIM Also, if you need to listen to some good local music while you fill in your time card, Graveyard Fields is your band. Read More

So Shark is telling you to use the “-ftree-vectorize” flag setting in GCC to squeeze out some floating point performance, yeah? You want to find out how to do that? Yeah… join the club. (First, don’t search on “-ftree-vectorize” in Google as Google will think you *do not* want to use the keyword “ftree-vectorize” becasue [...] Read More