Demystifying concurrent lazy load pattern

MVukoje

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5 Aug 2012CPOL9 min read

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Shows what are common mistakes in lazy load implementations and how to implement fast concurrent lazy load cache.

DemystifyingConcurrentLazyLoadPattern_src.zip
- LazyLoadSample.sln
- LazyLoadSample
  - Helpers
  - LazyLoads
  - LazyLoadSample.csproj
  - obj
    - x86
      - Debug
        
        GenerateResource.read.1.tlog
        
        GenerateResource.write.1.tlog
        
        LazyLoadSample.csproj.FileListAbsolute.txt
        
        LazyLoadSample.exe
        
        LazyLoadSample.Form1.resources
        
        LazyLoadSample.Properties.Resources.resources
      - Release
        
        GenerateResource.read.1.tlog
        
        GenerateResource.write.1.tlog
        
        LazyLoadSample.csproj.FileListAbsolute.txt
        
        LazyLoadSample.exe
        
        LazyLoadSample.Properties.Resources.resources
        
        LazyLoadSample.Simulator.resources
  - Program.cs
  - Properties
  - Settings.StyleCop
  - Simulator.cs
  - Simulator.Designer.cs
  - Simulator.resx
DemystifyingConcurrentLazyLoadPattern_demo.zip
- LazyLoadSample.exe
DemystifyingConcurrentLazyLoadPattern_demo.zip
- LazyLoadSample.exe
DemystifyingConcurrentLazyLoadPattern_src-noexe.zip
- LazyLoadSample.sln
- CustomLazyT.cs
- Product.cs
- SimulationRunData.cs
- BaseCache.cs
- GoodExample.cs
- GoodExampleWithDelayOnRead.cs
- GoodUsingCustomLazyT.cs
- GoodUsingLazyT.cs
- IfLockIf.cs
- LockingOnDataRead.cs
- LockingWithDelayOnDataRead.cs
- NaiveLocking.cs
- SimpleLazyLoad.cs
- LazyLoadSample.csproj
- GenerateResource.read.1.tlog
- GenerateResource.write.1.tlog
- LazyLoadSample.csproj.FileListAbsolute.txt
- LazyLoadSample.Form1.resources
- LazyLoadSample.Properties.Resources.resources
- GenerateResource.read.1.tlog
- GenerateResource.write.1.tlog
- LazyLoadSample.csproj.FileListAbsolute.txt
- LazyLoadSample.Properties.Resources.resources
- LazyLoadSample.Simulator.resources
- Program.cs
- AssemblyInfo.cs
- Resources.Designer.cs
- Resources.resx
- Settings.Designer.cs
- Settings.settings
- Settings.StyleCop
- Simulator.cs
- Simulator.Designer.cs
- Simulator.resx
DemystifyingConcurrentLazyLoadPattern_src.zip
- LazyLoadSample.sln
- CustomLazyT.cs
- Product.cs
- SimulationRunData.cs
- BaseCache.cs
- GoodExample.cs
- GoodExampleWithDelayOnRead.cs
- GoodUsingCustomLazyT.cs
- GoodUsingLazyT.cs
- IfLockIf.cs
- LockingOnDataRead.cs
- LockingWithDelayOnDataRead.cs
- NaiveLocking.cs
- SimpleLazyLoad.cs
- LazyLoadSample.csproj
- GenerateResource.read.1.tlog
- GenerateResource.write.1.tlog
- LazyLoadSample.csproj.FileListAbsolute.txt
- LazyLoadSample.exe
- LazyLoadSample.Form1.resources
- LazyLoadSample.Properties.Resources.resources
- GenerateResource.read.1.tlog
- GenerateResource.write.1.tlog
- LazyLoadSample.csproj.FileListAbsolute.txt
- LazyLoadSample.exe
- LazyLoadSample.Properties.Resources.resources
- LazyLoadSample.Simulator.resources
- Program.cs
- AssemblyInfo.cs
- Resources.Designer.cs
- Resources.resx
- Settings.Designer.cs
- Settings.settings
- Settings.StyleCop
- Simulator.cs
- Simulator.Designer.cs
- Simulator.resx
DemystifyingConcurrentLazyLoadPattern_src-noexe.zip
- LazyLoadSample.sln
- CustomLazyT.cs
- Product.cs
- SimulationRunData.cs
- BaseCache.cs
- GoodExample.cs
- GoodExampleWithDelayOnRead.cs
- GoodUsingCustomLazyT.cs
- GoodUsingLazyT.cs
- IfLockIf.cs
- LockingOnDataRead.cs
- LockingWithDelayOnDataRead.cs
- NaiveLocking.cs
- SimpleLazyLoad.cs
- LazyLoadSample.csproj
- GenerateResource.read.1.tlog
- GenerateResource.write.1.tlog
- LazyLoadSample.csproj.FileListAbsolute.txt
- LazyLoadSample.Form1.resources
- LazyLoadSample.Properties.Resources.resources
- GenerateResource.read.1.tlog
- GenerateResource.write.1.tlog
- LazyLoadSample.csproj.FileListAbsolute.txt
- LazyLoadSample.Properties.Resources.resources
- LazyLoadSample.Simulator.resources
- Program.cs
- AssemblyInfo.cs
- Resources.Designer.cs
- Resources.resx
- Settings.Designer.cs
- Settings.settings
- Settings.StyleCop
- Simulator.cs
- Simulator.Designer.cs
- Simulator.resx

D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\bin\Release\LazyLoadSample.XML
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\bin\Release\LazyLoadSample.exe
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\bin\Release\LazyLoadSample.pdb
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\obj\x86\Release\ResolveAssemblyReference.cache
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\obj\x86\Release\LazyLoadSample.Simulator.resources
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\obj\x86\Release\LazyLoadSample.Properties.Resources.resources
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\obj\x86\Release\GenerateResource.read.1.tlog
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\obj\x86\Release\GenerateResource.write.1.tlog
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\obj\x86\Release\LazyLoadSample.exe
D:\Projects\CodeProject article - Demistifying concurrent lazy load\LazyLoadSample\LazyLoadSample\obj\x86\Release\LazyLoadSample.pdb

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By

MVukoje

Software Developer (Senior) CallidusCloud

Serbia

I am a software developer at CallidusCloud currently working on software for Quoting and Product Configuration.

In past few years I have been working on development of multi-portal CMS and I was responsible for defining Coding standard and Code Review process. For three years, I have lead team of programmers that developed Soprex framework for enterprise applications development and I have also built Soprex Quotation Tool on that framework. My main points of interests are enterprise app architecture, Scrum and TDD.

I blogs about software development at www.Vukoje.NET.

Demystifying concurrent lazy load pattern

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