Andrew Arnott

News from my corner of the Visual Studio Connected Experience team, programming tips, and solutions to common programming issues.

The cost of context switches

Context switches are not free. But how expensive are they? I wrote a small program to find out, and I’m sharing the program and its results here. I focused on purely context switches (no work is actually performed between context switches). So it’s not a real-world scenario, but it really brings out the hidden costs…. Read more

Update to Visual C++ 2012 Debugger launch extension template

A few days ago I posted about an updated Visual C++ 2012 debugger extensibility project template.  Since then, I realized it had a couple of issues that prevented it from working out of the box.  With those fixed, I also added a demonstration of how to read project properties that aren’t specifically dedicated to debugger… Read more

Enable C++ and Javascript project system tracing

I’ve previously posted on how to enable logging in the C++ project system in Visual Studio 2010.  In Visual Studio 2012 we’ve changed the way the Common Project System (aka “CPS”) emits trace messages so below I introduce an updated xml snippet that works in Visual Studio 2012.  Since CPS is now the project system… Read more

Visual C++ 2012 Debugger Extensibility

Back in Visual C++ 2010 we introduced debugger extensibility so that third party vendors can either add new debugger engines or new ways of launching existing debugger engines for C++ projects.  In Visual C++ 2012 this debugger extensibility has been updated.  Any previous extensions that were compiled against Visual C++ 2010 will have to be… Read more