ReSharper sluggishness

Question

I like ReSharper, but it is a total memory hog. It can quickly swell up and consume a half-gig of RAM without too much effort and bog down the IDE. Does anybody know of any way

Answer 1

I had an issue where it was taking upwards of 10 minutes to load a solution of 100+ projects. Once loaded VS performance would be ok, though it would oddly flutter back and forth between ok and really bad.

The short answer: Eliminating Resharper warnings seems to improve overall VS/R# performance.

The biggest problem ultimately was that we had a number of files of binary data (encrypted stuff) being included as embedded resources, which happened to have .xml extensions. Resharper was trying really really hard to analyze those files. Eventually it'd get through but would generate 100K+ errors in the process. Changing the extension to one Resharper did not automatically analyze (.bin in this case) solved the problem.

We still have about 10 files which when they or a file they depend on is edited performance tanks for a while. These files are the partial parts of a single class definition where each file averages 3000 LOC. Yes, that's right, it's about a 30K line class. It also happens to be rather poor code for other reasons, many of which Resharper flags making the right hand gutter bar practically a solid orange line. Editing often causes Resharper to reanalyze the whole thing. While that analysis runs, performance is noticeably affected.

I've come to the conclusion that the less errors/warnings there are for R# to identify, the better it performs. My anecdotal evidence gathered while cleaning up/refactoring this project seems to support it.

A lot of folks complain of perf problems with Resharper. If you have even a few big ugly code files with lots of Resharper warnings, then a little time spent cleaning that code up might yield better performance overall. It has for us.