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                                  • Since the last few latest updates to CodeRush we as a development team are experiencing slowdowns within Visual Studio, without any settings changes. Having briefly looked into this this morning, I believe the CodeIssues Catalog VS Registration system is broken, in the sense of it is running background analysis on items, even though they are either not enabled, or registered within Visual Studio.

                                    Our memory usage since the latest update, is unpredictable and causing frequent crashes within visual studio. Because of this I have had to make the decision to disable the CodeRush extension for now.

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                                • Eugene R (DevExpress) 07.16.2019

                                  Hi Mark,

                                  We constantly work on performance enhancements and would greatly appreciate you providing any information that will help us localize the problem.
                                  Would you please archive two folders with the product settings and send them to us?
                                  - %appdata%\CodeRush\Settings\
                                  - in the solution folder
                                  The path should be similar to the following one: {SolutionFolder}.cr\

                                  Also, please check the "Enable full solution analysis" option in the "Tools\Options..." dialog on the "Text Editor\Basic\Advanced" option page and let us know if it is disabled.
                                  In addition, it will help if you send us CodeRush log files (you can get them here: %LocalAppData%\CodeRush\Logs).

                                  I am looking forward to hearing from you.

                                • Mark Hopper 07.17.2019

                                  Eugene, to add to my initial ticket, me and my colleague have since discovered that two new "unused" based analyzers were defaulted to being registered within VS. Based on my review of recent release notes, I am of the understanding that these have recently been introduced.

                                  I can confirm that the Enable full solution analysis option is indeed disabled.

                                  I have attached a zip folder as requested, that contains the code rush settings, the solution folder based coderush settings, and all the log files contained within the Logs folder.

                                  In the meantime, I will follow my colleagues recent adjustments and see if these have any impact on Visual Studio stability and responsiveness.

                                • Eugene R (DevExpress) 07.17.2019

                                  Hi Mark,

                                  Thank you for your assistance.
                                  Please give us some time to research the settings and logs.
                                  We will contact you soon.

                                • Eugene R (DevExpress) 07.19.2019

                                  Hi Mark,

                                  We've analyzed your log files and see that there's some diagnostics in background analysis that should not be there.
                                  Would you please try disabling "Show Color" and "Spell Checker" and check the slowdown again.
                                  You can use the Quick Setup option page to disable these features. Here is an image illustrating how you can do this:

                                  We've prepared a build that logs the diagnostics registration in VS.
                                  Would you please try it and send us the logs again in case the slowdown persists.

                                  Try the following testing scenario with this build:

                                  1. Clear the logs folder.
                                  2. Open an empty VS, then open the solution and reproduce the slowdown
                                  3. Close the VS
                                  Repeat steps 2 and 3 several times so that the logs folder contains several reports (files)

                                  Also, it would be very helpful if you could collect perf view data on this issue using the PerfView tool from Microsoft during the slowdown and provide us with this information.

                                  1. Download and extract the perf view.
                                  2. Run the PerfView tool.
                                  3. Start Visual Studio.
                                  4. When you see the slowdown, go to the PerfView tool and click the Collect\Collect menu item.
                                  5. Collect perf view data until slowdowns end.
                                  6. Click the Stop Collection button.
                                  7. Wait until the data is merged and appears in the PerfView window inside the tree view.
                                  8. Right-click it and choose "Open".
                                  9. Send the zip file to us.

                                  You can upload the log files to our FTP with the following credentials:
                                  User:                      UPLOAD
                                  Password:             HEREYOUARE

                                  I look forward to hearing from you.

                                • Mark Hopper 07.19.2019

                                  Eugene, many thanks for getting back to me, as mentioned in my previous comment, we had noticed several "unused" based analyzers that were registered within VS by default upon upgrading to the latest version of CodeRush, is this the "diagnostics" that were registered in the background analysis you are talking about?

                                  And so just to clarify, you want me to install this special build, disable both the spellchecker and the showcolor options. You also want me to clear my logs folder, attempt to reproduce the slowdown, as well as providing you with a PrefView DataSet.

                                • Eugene R (DevExpress) 07.19.2019

                                  Hi Mark,
                                  Thank you again for taking the time and helping us catch this problem.

                                  If I understand you correctly, you're talking about the diagnostics from the CodeAnalysis section in the project properties.
                                  Here is an image of this section :
                                  Presence of these diagnostics is normal and should not impact the productivity.

                                  I've analyzed the log file you sent us and see that it contains many exceptions from the async methods analyzer which means that this diagnostic continues to work in the background even if we do not register it in VS.
                                  Here is the call stack of the exception I mean.

                                  2019.07.15 09:12:11.8878 Error: Message: Object reference not set to an instance of an object. 2019.07.15 09:12:11.8878 Error: Type: System.NullReferenceException 2019.07.15 09:12:11.8878 Error: Source: DevExpress.CodeAnalysis.VisualBasic.Diagnostics 2019.07.15 09:12:11.8878 Error: StackTrace: at DevExpress.CodeAnalysis.VisualBasic.Diagnostics.AsyncAwait.TaskFactoryStartNewAnalyzer.AnalyzeNode(SyntaxNodeAnalysisContext context) at DevExpress.CodeAnalysis.Diagnostics.DiagnosticAnalyzerBase.AnalyzeNodeWithLogging(SyntaxNodeAnalysisContext context)

                                  I've also noticed several errors from the "Show Color" functionality in the logs.
                                  So, as the first step, please try disabling the spellchecker and the showcolor options and then try to reproduce the problem.

                                  After that, please install the special build we sent you, try to reproduce the slowdown again and send us the log files.
                                  This build contains the additional logging of the diagnostics registration and we expect to gather the necessary information.
                                  Please, follow the test scenario I mentioned in my previous reply.

                                  If you have the opportunity to collect perf view data, no matter on which build, the current or the one we sent you, this will greatly help us find the cause of the problem.

                                • Mark Hopper 07.19.2019

                                  Ah okay, this makes a bit more sense and I did notice those exceptions within my log file when quickly glancing at them. I've followed your steps of disabling both the spellchecker and the show color option.

                                  Whilst I haven't seen any slowdown, I am noticing other behaviour relating directly to the code issues catalog. I have now disabled every code issue that was registered to VS, and reopened visual studio upon making these changes. Despite this I am seeing items relating to these analyzers such as CRR0035 in my error list, and as far as I was aware this should not be the case, and also points to diagnostics still running in the background.

                                • Eugene R (DevExpress) 07.19.2019

                                  Hi Mark,

                                  Yes, it looks like a symptom of the same problem.
                                  Diagnostics are registered in VS and run in the background by some reason, regardless of the options set in Code Issues Catalog.

                                • Mark Hopper 07.19.2019

                                  Here is an excerpt from your extra logging information:
                                  2019.07.19 11:10:18.9044 Information: The 'CRR0035' analyzer is not registered by default..

                                  I have disabled CRR0035 in every language in the settings.

                                  I also in a couple of my instances of running visual studio saw this in the log file:
                                  2019.07.19 13:52:37.7639 Information: The 'CRR0022' analyzer is registered as a standalone analyzer.

                                  Don't know if this helps diagnose the issues i'm facing. I will provide more detail when I have a bit more time to investigate which should hopefully be monday.

                                • Mark Hopper 07.19.2019

                                  Also still seeing this in the logs:
                                  2019.07.19 16:14:49.6805 Error: Message: Object reference not set to an instance of an object.
                                  2019.07.19 16:14:49.6805 Error: Type: System.NullReferenceException
                                  2019.07.19 16:14:49.6805 Error: Source: DevExpress.CodeAnalysis.VisualBasic.Diagnostics
                                  2019.07.19 16:14:49.6805 Error: StackTrace:    at DevExpress.CodeAnalysis.VisualBasic.Diagnostics.AsyncAwait.TaskFactoryStartNewAnalyzer.AnalyzeNode(SyntaxNodeAnalysisContext context)
                                     at DevExpress.CodeAnalysis.Diagnostics.DiagnosticAnalyzerBase.AnalyzeNodeWithLogging(SyntaxNodeAnalysisContext context)

                                • Eugene R (DevExpress) 07.22.2019

                                  Hi Mark,

                                  Thank you for the assistance.
                                  Presence of this exception in the log file shows that the diagnostic is used by VS even if it is disabled.
                                  We suppose that we understand the cause of this behavior.

                                  Please give us some time to prepare the correction. We will contact you once the changes are ready.

                                • Mark Hopper 07.22.2019

                                  Of course Eugene, if you do require further information or detail, don't hesitate to ask.

                                2 Solutions

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                                Hi Mark,

                                Thank you for the reply.
                                Please keep us updated if you face any difficulties with the hotfix.

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                                • Mark Hopper 07.30.2019

                                  Eugene, just wanted to provide you with an update with regards to my issues with CodeRush. When having two or more instances of Visual Studio open at the same time, I am noticing that one of the IDE's is having the Analyzers registered by default.

                                  This is apparent not only in the logging entries, but also on the cpu usage on the extensions monitor extension).

                                  Attached are logs from my two instances of visual studio in case it helps you to understand/find what circumstance is causing this.

                                • Eugene R (DevExpress) 07.30.2019

                                  Hi Mark,

                                  Thank you for providing us with additional information.
                                  In your log files, we see that some analyzers are registered in Visual Studio before CodeRush starts.
                                  I've managed to reproduce the problem.
                                  We need some time for the research. We will contact you once get any results.

                                • Mark Hopper 07.30.2019

                                  Okay Eugene, glad you've managed to reproduce it, and I look forward to hearing about your results when you have them. In the meantime, if you require further diagnostic data, don't hesitate to ask.

                                • Eugene R (DevExpress) 08.01.2019
                                • Mark Hopper 08.01.2019

                                  Eugene, I will attempt to install this latest hotfix tomorrow and let you know my results.

                                • Mark Hopper 08.02.2019

                                  Initial observations are promising. Having opened four different instances of Visual Studio, based on the logging entries, no analyzers are now being registered within Visual Studio. Should I see this behaviour again, I of course will let you know.

                                • DevExpress Support Team 07.25.2019

                                  We have published the requested patched build and are looking forward to hearing about your results. Meanwhile, we would like to mark this ticket as Public, if you do not mind, to include it in the What's New lists for future maintenance updates.

                                • Mark Hopper 07.25.2019

                                  Yes of course, feel free to mark this ticket as Public. In the meantime I will test your hotfix and provide results once I've had sufficient chance to review it.

                                • Eugene R (DevExpress) 07.25.2019

                                  Hi Mark,

                                  Thanks for allowing us to make this ticket public.
                                  We appreciate your cooperation.

                                • Mark Hopper 07.26.2019

                                  Eugene, I just wanted to give you some initial early feedback, the signs are certainly promising with this hotfix. I have an extension monitor that shows me the percentage of time allocated to the Roslyn Analysis process within Visual Studio, and it's hardly twitched. Additionally the log file is now stating the following:

                                  The 'CRR0019' analyzer is not registered by default..

                                  Which I assume means that CodeRush/Visual Studio are treating the analyzers as not registered within the background process of visual studio.