I'm using VS 2010 and Resharper 6.0.2151.53
Windows 7 x64
4 GB RAM
We've got a solution that has 8 web projects and 24 C# projects.
Before installing Resharper all of the C# projects could be rebuilt in about 1 minute. Individual projects could do an incremental build in as little as 5-10 seconds depending on if any dependencies had to be rebuilt.
After installing Resharper an incremental build takes 5+ minutes, makes Visual Studio unresponsive and at various times during the build makes unreleated programs (eg. FireFox and Chrome) unresponsive for a few seconds at a time. I've noticed that during this time the hard drive activity light is on solid the entire time.
There is no indication in the lower right bar that ReSharper is doing anything (eg. Processing Assemblies/Source Files).
I discovered that if I change my web projects to NOT use project dependencies, but just plain file system dependencies the build time returns to normal. The problem with this is that when the web project's dependencies are rebuilt they don't get copied to the web project immediately which is important for a quick code-build-test-fix-build cycle.
This makes ReSharper completely unusable for us.
Original message URL: http://devnet.jetbrains.net/message/5303036#5303036