Resharper for huge projects, use or not use?_问答_开发者

I've just asked my manager why our company does not use Resharper, and he, kind enough, told me that our projects are so huge to use Resharper, because it will slow our computers to their knees.

I'm still getting the source code from TFS, it seems to take 2 hours more(ahhh), each solution should contain about 30 projects, each project contains 50-100 .cs files. Our machines are running on Q6700/4GB RAM and Windows 7 x64 Enterprise, VS/TFS 2010 .

I'll try it myself, but I want to ask if Resharper (latest version) is suitable for huge project. Is there a change for me to configure/tweak VS/Resharpe开发者_如何学Cr to get acceptable performance in my situation? Have you faced same thing?

Thank you very much

I'd once to work on a project with 180 projects in the solution, with VS 2008, R#4 and only 2Gb of RAM. The trick was to unload the projects from memory (right on the project in solution-explorer, then unload). I worked mainly with 5 projects and only they were processed by R#. If I had to get a newer version of an unloaded project, I used the source control client (source safe for instance), then I ran msbuild.exe mysolution.sln in a command line console. This recompile the whole solution, in a background process without the full dev environment.

Use Resharper no matter what. Your productivity is so much improved by it, that you can afford an insignificant performance decrease. It gets a bit sluggish with very big classes (500 lines+), but who in their right mind create those kinds of monster classes these days? :-)

The latest versions have been - in part - focused on speeding up performance, reducing the memory footprint and optimizing for larger solutions. While your case is rather extreme, in my opinion, you may still benefit from the productivity improvements. Just be wary opening huge code files - and TURN OFF "Solution Wide Analysis". =)

It's difficult to give you an exact answer to this. I've run into performance (memory) issues with Resharper in the past after some long coding sessions. Restarting Visual Studio often fixes this. My projects are perhaps not huge, so you probably run into this problem quicker than me.

However, I think the benefit I get in productivity using ReSharper vastly makes up for the performance loss.

If I were your manager, I'd rather spend a little more money on additional hardware and memory, than to spend money on ineffective programmers.

I don't know why but I've always had problems with Resharper being CPU hog and memory intensive (and I do have Intel Core 2 Duo P9700 and 4GB ram and SSD drive). I even tried newest EAP 6.0 and on 2000 lines file (as being the only one open) it was taking 97% cpu (well VS was but without it there's no problem). Solution wide checking is turned off. It was killing productivity for me as I couldn't type fast enough and it was making me focus more on the Resharper then actual coding. The whole project has 120-160k lines so maybe this is the problem since on smaller projects Resharper was working like a charm.

A couple of R# performance tips:

Turn off Solution wide analysis and run it only when you need: Resharper -> Options -> untick Analyze errors in whole solution and many more here https://confluence.jetbrains.com/pages/viewpage.action?pageId=37228482
In VS, unload projects that you know for sure you'll won't touch, or even better, have multiple solution that load only the project you need. For e.g: All.sln,WebOnly.sln, ApiOnly.sln (be creative).

Note 1: since you asked this question, hardware industry has advanced significantly. I'm opening a solution with 72 projects, 51,000+ files on a Macbook Pro with PCI-e SSD and it takes only 10-15 secs. Compile time is about 20-30 secs so I guess no problem so far.

Note 2: In 2015, Git >>> TFS.