gistfile1.txt

import std.array: replicate;
import std.conv;
import std.datetime;
import std.stdio;

void main()
{
	enum size = 1024 * 1024 * 10; /* 10 MB */
	go("a", size);
	go("ä", size);
	go("aaaaaaaaä", size);
}

void go(string s, uint totalSize)
{
	assert(totalSize % s.length == 0);
	
	File fw = File("test.txt", "w");
	fw.rawWrite(s.replicate(totalSize / s.length));
	fw.close();
	
	File fr = File("test.txt", "r");
	StopWatch sw;
	sw.start();
	auto ltr = LockingTextReader(fr);
	foreach(x; ltr) {}
	sw.stop();
	writeln("\"", s, "\"  ", to!Duration(sw.peek));
}