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param([Parameter(Position = 0)][string] $Path = 'C:\Users\grave\Downloads\ChessData-master\') | |
$code = @{ | |
Name = 'ResultCounter' | |
Namespace = 'ChessData' | |
PassThru = $true | |
UsingNamespace = @( | |
'System.Collections.Concurrent', | |
'System.IO', | |
'System.Threading.Tasks' | |
) | |
MemberDefinition = @' | |
public static ConcurrentDictionary<string, int> ProcessChessFiles(string path) | |
{ | |
ConcurrentDictionary<string, int> result = new ConcurrentDictionary<string, int>(); | |
string tie = "1/2-1/2"; | |
string black = "0-1"; | |
string white = "1-0"; | |
string lineResult = "[Result"; | |
Parallel.ForEach<string>(Directory.EnumerateFiles(path, "*.pgn", SearchOption.AllDirectories), filename => | |
{ | |
using (StreamReader sr = new StreamReader(filename)) | |
{ | |
string line; | |
while ((line = sr.ReadLine()) != null) | |
{ | |
if ((line.Length - line.Replace(lineResult, String.Empty).Length) / lineResult.Length == 1) | |
{ | |
if ((line.Length - line.Replace(white, String.Empty).Length) / white.Length == 1) | |
{ | |
result.AddOrUpdate("White", 1, (k, v) => v + 1); | |
} | |
else if ((line.Length - line.Replace(tie, String.Empty).Length) / tie.Length == 1) | |
{ | |
result.AddOrUpdate("Tie", 1, (k, v) => v + 1); | |
} | |
else if ((line.Length - line.Replace(black, String.Empty).Length) / black.Length == 1) | |
{ | |
result.AddOrUpdate("Black", 1, (k, v) => v + 1); | |
} | |
} | |
} | |
} | |
}); | |
return result; | |
} | |
'@ | |
} | |
$CompilerParams = [System.CodeDom.Compiler.CompilerParameters]::new() | |
$CompilerParams.CompilerOptions = "/optimize+ /warn:0" | |
$class = Add-Type @code -CompilerParameters $CompilerParams |Select-Object -First 1 | |
Measure-Command { | |
$res = $class::ProcessChessFiles($Path) | |
} | |
$res | Format-Table |
Added the internal Measure-Command back in :)
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I tried several iterations of compiled code, only to come to the conclusion that Mathias (@IISResetMe)
had a close to perfect implementation (as far as I could tell). So I decided to take his code and
shave a couple of extra seconds from it, and I think I succeeded.
My notable changes are:
Hope you don't mind Mathias :)