private static void ParallelAggregationWithTpl()
{
using (ExecutionTimer.Start("Parallel.ForEach", blockResults: true))
{
var parallelResults = new List <NamespaceItem>();
var parallelResultsLock = new object();
Parallel.ForEach(
// the IEnumerable to enumerate over...
FilesToRead,
// initialization
() => new List <NamespaceItem>(),
// loop body
(line, loopState, partialResult) =>
{
partialResult.Add(ParseText(File.ReadAllText(line)));
return(partialResult);
},
// local finally (good for aggregation)
(localPartialResult) =>
{
lock (parallelResultsLock)
{
parallelResults.AddRange(localPartialResult);
}
});
Console.WriteLine("Results: {0}", parallelResults.Count);
}
}
private static void ParallelAggregationWithLinq()
{
using (ExecutionTimer.Start("PLINQ (AsParallel)", blockResults: true))
{
var linqResults = FilesToRead
.AsParallel()
.Select(x => ParseText(File.ReadAllText(x)))
.ToList();
Console.WriteLine("Results: {0}", linqResults.Count);
}
}
private static void SynchronousAggregation()
{
using (ExecutionTimer.Start("SynchronousAggregation", blockResults: true))
{
var syncResults = new List <NamespaceItem>();
foreach (var line in FilesToRead)
{
syncResults.Add(ParseText(File.ReadAllText(line)));
}
Console.WriteLine("Results: {0}", syncResults.Count);
}
}
static void Main(string[] args)
{
ExecutionTimer.Options(
showInfo: true
);
SynchronousAggregation();
ParallelAggregationWithTpl();
ParallelAggregationWithLinq();
}
