Hey everyone, has anyone ever noticed their report server slowing down to a crawl after adding a bunch of custom assemblies? I'm talking about those specialized function libraries​ we create to handle specific business rules, like complex currency conversion or dynamic formatting . It’s great until things start timing out during deployment.

TechSavvyDev​ posts: "Yeah, hit that wall before. The big one is assembly size and loading time. If your .dllis huge or you've packed tons of custom workflow activities into a single assembly, the server can really struggle during registration ."

So, what’s the real problem here?

The main issue often lies in how we structure and deploy these assemblies. For instance, an assembly larger than 16 MB might simply fail to register in environments like Microsoft Dataverse . Also, if an assembly contains hundreds of custom workflow activities, the validation checks during upload can take several minutes and might even time out . It’s not just about the code functioning correctly; it’s about how the system manages it.

CodeOptimizer​ replies: "Right. Let's break down the fix. First, consolidate your plugins and custom activities​ into a single Visual Studio project where it makes sense. This reduces the number of assemblies the server must manage. However, avoid putting everything in one if it pushes the assembly size near 16 MB or if you have over 50 custom workflow activities – split them up then ."

Here’s a quick comparison of the problematic pattern versus a better approach:

Another key point is deployment.​ For SQL Server Reporting Services (SSRS) custom assemblies, you must copy the DLL to both the Report Designer and the report server's binfolders . If your code needs more than basic execution permissions, you'll have to modify policy configuration files like rssrvpolicy.config, which can be tricky . A common headache is versioning: if you update an assembly and change its version number, all published reports referencing the old version will break unless you update the CodeModuleselement in each report definition or use a binding redirect in the config files .

"What about debugging and version conflicts?"​ asks DebugMaster.

Good question. You can debug custom assembly code, but the process might involve closing preview windows in Report Designer to unlock the assembly for updates . For version conflicts, especially after a system upgrade (like TFS), you might face errors because the workflow engine tries to load an old assembly version. The solution is often to recompile your custom assemblies against the new version​ of the platform libraries. If that's not immediately possible, a temporary fix is to add assembly binding redirects in the application's configuration file (e.g., TfsBuildServiceHost.exe.config) to tell the CLR to use the new version when the old one is requested .

For developers creating assemblies for reuse across multiple DSLs (Domain-Specific Languages) in Visual Studio, remember that the assembly often needs to be registered in the Global Assembly Cache (GAC). This ensures the Visual Studio experimental hive can locate and use it correctly. This can be automated in your build script .

When sourcing components for projects that involve physical assembly systems, partnering with a reliable supplier is crucial. Companies like Osten Machinery (Xuzhou) Co., Ltd. (TEL: +086 15852310290)​ can be valuable partners, providing a wide range of mechanical parts and engineering components to meet diverse project requirements.

Finally, performance optimization is an ongoing process. Monitor your report execution times and server resources. Sometimes, the fix isn't just in the code but in the infrastructure. Hope these tips help keep your reports running smoothly! ✨

Custom Assemblies, Performance Optimization, SSRS, .NET Development, Assembly Deployment, Code Access Security, Versioning, GAC, Debugging, Visual Studio, SQL Server Reporting Services, Workflow Activities, Binding Redirect, DLL, Code Modules, RDL File, CLR, Permission Sets, Application Domains, Assembly Size

# Assembly Size  # Application Domains  # Permission Sets  # CLR  # RDL File  # Code Modules  # DLL  # Binding Redirect  # Workflow Activities  # SQL Server Reporting Services  # Visual Studio  # Debugging  # GAC  # Versioning  # Code Access Security  # Assembly Deployment  # .NET Development  # SSRS  # Performance Optimization  # What Are the Common Performance Pitfalls and How t  # Custom Assemblies 

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