 Joshua Goodman Group Program Manager Microsoft Corporation

.NET 1.0.NET 1.1.NET NET CTP!

Base Class Libraries The CLR JIT & NGEN Garbage Collector Security Model Exception Handling Loader & Binder Profiling& Debugging APIs WPF Win Forms DLR Dynamic Language Runtime DLR Dynamic Language Runtime ASP. NET WCF And more! LINQ

Thread [] threads = new Thread[8]; for (int i=0; i<8; i++) { Worker worker = new Worker(); threads[i] = new ThreadStart(worker.Work); threads[i].Start(); worker.identity =i; } Code from an Outlook addin our executives used

Thread [] threads = new Thread[8]; for (int i=0; i<8; i++) { Worker worker = new Worker(); threads[i] = new ThreadStart(worker.Work); threads[i].Start(); worker.identity =i; } Code from an Outlook addin our executives used

.NET 1.0.NET 1.1.NET NET 4.0

.NET 2.0.NET addin 3.0 addin addin 4.0 addin Host Process (e.g. Outlook) i i

public Tuple DivAndRemainder(Int32 i, Int32 j) { return new Tuple.Create(i/j, i%j); } // An example of someone accessing items in a tuple. for (Int16 i = 0; i <= 25; i++) { for (Int16 j = 1; j <= 5; j++) { var tuple = DivAndRemainder(i,j); Console.WriteLine("{0}\t{1}\t{2}\t{3}\n", i, j, tuple.item1, tuple.item2); }

Parallel.For(0, n, i => work(i)); Parallel.ForEach(data, e => work(e));.AsParallel() var results = from item in shows.AsParallel() where item.Description.Contains(keyword) && item.Year > startYear orderby item.StartTime ascending select item;

Parallel.For(0, n, i => work(i)); Parallel.ForEach(data, e => work(e));

Ephemeral Segment Other Segments Generation 0, 1 and parts of Generation 2 live here Most of Generation 2 lives here

Ephemeral Segment Other Segments Ephemeral Segment Other Segments Generation 0, 1 and parts of Generation 2 live here Most of Generation 2 lives here

Ephemeral Segment Other Segments Generation 0, 1 and parts of Generation 2 live here Most of Generation 2 lives here

Raw latency in microseconds Background GC Concurrent GC Profiling samples of latency during application execution

public void FileSave(String name) { try { FileStream fs = new FileStream(name, FileMode.Create); } catch(Exception e) { MessageBox.Show("File Open Error"); throw new Exception(IOException); }

public void FileSave(String name) { try { FileStream fs = new FileStream(name, FileMode.Create); } catch(Exception e) { MessageBox.Show("File Open Error"); throw new Exception(IOException); }

public void BuyMoreStuff(Item[] cart, ref Decimal totalCost, Item i) { CodeContract.Requires(totalCost >=0); CodeContract.Requires(cart != null); CodeContract.Requires(CodeContract.ForAll(cart, s => s != i)); CodeContract.Ensures(CodeContract.Exists(cart, s => s == i); CodeContract.Ensures(totalCost >= CodeContract.OldValue(totalCost)); CodeContract.EnsuresOnThrow ( totalCost == CodeContract.OldValue(totalCost)); // Do some stuff … }

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