LINQ
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LINQ
Rico Mariani changed his position a few months ago but he still manages to provide his Performance Quizzes from time to time. Today he explains the difference between LINQ queries and compiled LINQ queries. It's obvious that one should cache as much as possible because in most cases is better to pay a high price once then a slightly reduced one many times. But the interesting part of the post is the way how Microsoft came up with their current implementation of compiled LINQ queries. Nearly every good performance solution is a matter of realizing that being very generic doesn't...
LINQ as a concept is highly extensible and every now and then a new LINQ to WhatEverYouWant gets announced. Just a few examples to show how fast people are adopting this technology: LINQ to LLBLGEN, LINQ to NHibernate, LINQ to Filckr, LINQ to Amazon, etc. Within a few days I've come across 3 more projects:
SyncLinq - it returns collections that implement INotifyCollectionChanged which lets you track changes
PLinq - it lets you specify that a given LINQ statement should be executed concurrently and it's up to the runtime to decide...