Created
October 17, 2014 08:21
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Foreach and Dictionary initialising
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//I had a need to test a few combinations of AsParallel and OrderBy whilst learning C# | |
//Here I wanted to try initialising a dictionary inline - not keen on code repetition. | |
//Outcome was for this dataset, AsParallel didn't help but worsened performance. | |
//Note, I tried more combinations than this. | |
private void timedResult(IEnumerable<Data> data) | |
{ | |
var NoOrderNoParallel = data.Where(g => g.CODE == "BXF04A").Select(g => g); | |
var OrderedOnly = data.OrderBy(c => c.CODE).Where(g => g.CODE == "BXF04A").Select(g => g); | |
var ParallelOnly = data.AsParallel().Where(g => g.CODE == "BXF04A").Select(g => g); | |
var ParallelAndOrdered = data.AsParallel().OrderBy(c => c.CODE).Where(g => g.CODE == "BXF04A").Select(g => g); | |
System.Diagnostics.Stopwatch timer = new System.Diagnostics.Stopwatch(); | |
//Create a dictionary, fill it and iterate in one line | |
foreach ( var testList in new Dictionary<IEnumerable<Data>, string>{{NoOrderNoParallel,"No Order, No Parallel"}, | |
{OrderedOnly,"Ordered on Postcode"}, | |
{ParallelOnly,"Parallel"}, | |
{ParallelAndOrdered,"ParallelAndOrdered"}} ) | |
{ | |
timer.Start(); | |
//Create evaluation | |
var test = testList.Key.ToList(); | |
timer.Stop(); | |
Console.WriteLine("{1} time elapsed {0}", timer.ElapsedMilliseconds, testList.Value); | |
timer.Reset(); | |
} | |
} | |
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