"We've noticed that extension 'ReSharper Ultimate' is slowing Visual Studio" message

In case you get this


and this


or that


We have no idea how MS team counts that number of seconds in VS performance monitor. Sometimes it complains about its Error List  https://developercommunity.visualstudio.com/content/problem/16041/vs-2017-rc-weve-noticed-that-a-tool-window-error-l.html or something else.

If you notice a real performance problem apart from that message, first of all, please try following this guide https://www.jetbrains.com/help/resharper/Speeding_Up_ReSharper.html

If those steps did not help and you still experience the performance problem, please follow https://resharper-support.jetbrains.com/hc/en-us/articles/207243205 article to send us a perf snapshot.


I can endure a slow startup, and I can even endure a little bit (NOT a lot) of slow typing. But there seems to be a particular issue at the moment related to slow typing that is worse than just slow typing. Basically, something is wonky with the queuing up of keystrokes and/or maybe the cursor position, such that when you type during the freeze, when it comes back and empties the keystroke queue, the results are in the wrong order, so you can't even type blind.


You know it’s bad, when Visual Studio even complains about the workmanship. And the fact, the proposed remedy is to hide that there is a problem.

Edited by Nick5454

Seriously, resharper is too fat, in most of time I have to reopen a project. I hope you have a lighter version because I rather have just searching file capability from resharper than a big fat slow rich features. 

Edited by Jerry27syd

Same issues since I can remember


After numerous complaints to jetbrains support, I have decided to suspend R# in most of the development work. I only use it once in a while doing code refactor and cleanup. 


I think there is an issue with long methods. Writing code near the end of a particularly long method (~1000 loc?) causes regular extremely long freezes, sometimes 10-30 seconds or more. You can see the method signature intellisense popup appear blank and in the wrong place (near the top of the screen instead of near the cursor, but who knows if that's related or not.


It's really a fact: most developers are aware of the fact that on one hand Resharper can be a great tool, but it often blocks your progress instead of increasing it, and increasing it is the whole point of having a tool like Resharper.

I just upgraded to Resharper 2019.2 (using VS 2017) and my experience is that I regularly need to wait a few seconds after typing a fragment of code.

Also regularly it just makes VS hang: a wait cursor shows and in the end I have no choice than to kill VS and start again.

It was already bad before the upgrade, but it has become worse. Especially the total hanging of VS is new.

Unfortunately, the link you provided to speed up resharper is dead (gives 404), so not useful to me


Hello Joepwijers,

Thank you for your feedback.
To begin with, I've updated the link to speed up ReSharper guide, so it's correct now.

We do understand there's a performance problem and we are working on it. A big part of the problem we have is that recent versions of Visual Studio have very much increased the amount of memory they use. That leaves less memory that ReSharper can use, and because VS is 32 bit, if the project is large enough, it can start to hit the limits where the garbage collector kicks in, and performance starts to suffer. 
We have been working on moving ReSharper out of the process for a long time; here you can see the latest updates: https://blog.jetbrains.com/dotnet/2019/07/11/where-we-are-with-out-of-process-resharper/.
Still, as we are very interested in improving performance we need to determine the cause of the problem in every single case.
Could you please provide a performance snapshot as described in the article. Please specify the steps that lead to the problem in the snapshot details.
We'd be really grateful for the assistance.


Edited by Angelina Elycheva

I was using VS 2017 and had to remove Resharper as it was unusable, Having removed it, Its been much easier to live without it than I thought.
I have now upgraded to VS 2019 and working the same projects, VS 2019 feels much faster, hopefully this means Resharper has half a chance of running better on VS 2019 but I am not going to risk re-enabling my subscription to be disappointed..again. 


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