Fun with matrix multiplication and unsafe code
In this post I will compare two methods that perform matrix multiplication. We start by defining the Matrix class: class Matrix { private readonly double[,] _matrix; public Matrix(int dim1, int dim2) {...
View ArticlePlaying with FindFirstFile and FindNextFile
Enumerating files in .NET is easy. Everybody knows the GetFiles method and you may be tempted to write code like this : var files = Directory.GetFiles(@"c:\windows\system32", "*.dll"); foreach (var...
View ArticleTransactional NTFS (part 1/2)
Transactional NTFS and DotNet Starting from Windows Vista and Windows Server 2008, Microsoft introduced a great new feature called Transactional NTFS (TxF). It allows developers to write file I/O...
View ArticleDynamic methods in .NET
Using reflection to invoke methods which are not known at compile time might be problematic in performance critical applications. It is roughly 2.5-3.0 times slower than direct method calls. Here’s a...
View ArticleLINQ to XML and reading large XML files
LINQ to XML makes it relatively easy to read and query XML files. For example consider the following XML file: <xml version="1.0" encoding="utf-8" ?> <users> <user name="User1"...
View Article