Making byLine faster: we should be able to delegate this
Tobias Pankrath via Digitalmars-d
digitalmars-d at puremagic.com
Mon Mar 23 12:25:07 PDT 2015
> I made the same test in C# using a 30MB plain ASCII text file.
> Compared to fastest method proposed by Andrei, results are not
> the best:
> readText.representation.count!(c => c == '\n') - 428 ms
> byChunk(4096).joiner.count!(c => c == '\n') - 1160 ms
> File.ReadAllLines.Length - 216 ms;
> Win64, D 2.066.1, Optimizations were turned on in both cases.
> The .net code is clearly not performance oriented
> I suspect that .net runtime is performing some optimizations
> under the hood.
Does the C# version validate the input? Using std.file.read
instead of readText.representation halves the runtime on my
More information about the Digitalmars-d