/// <summary>
/// Find most fragmented files and group by fragment count.
/// </summary>
/// <remarks>
/// Requires RetrieveMode.Streams and RetrieveMode.Fragments
/// </remarks>
static void AnalyzeFragmentation(IEnumerable <INode> nodes, DriveInfo driveInfo)
{
//Fragmentation Example
IDictionary <UInt32, List <INode> > fragmentsAggregate =
Algorithms.AggregateByFragments(nodes, 2);
List <UInt32> fragments = new List <UInt32>(fragmentsAggregate.Keys);
fragments.Sort();
fragments.Reverse(); //make the most fragmented ones appear first
string targetFile = Path.Combine(driveInfo.Name, "fragmentation.txt");
using (StreamWriter fs = new StreamWriter("c:\\fragmentation.txt"))
{
foreach (UInt32 fragment in fragments)
{
List <INode> fragmentedNodes = fragmentsAggregate[fragment];
fs.WriteLine("-----------------------------------------");
fs.WriteLine("FRAGMENTS: {0}", fragment);
fs.WriteLine("-----------------------------------------");
foreach (INode node in fragmentedNodes)
{
fs.WriteLine(
string.Format(
"Index {0}, {1}, {2}, size {3}, path {4}, lastModification {5}",
node.NodeIndex,
(node.Attributes & Attributes.Directory) != 0 ? "Dir" : "File",
node.Name,
node.Size,
node.FullName,
node.LastChangeTime.ToLocalTime()
)
);
}
}
}
Console.WriteLine("Fragmentation Report has been saved to {0}", targetFile);
}
