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| program Test;
{$APPTYPE CONSOLE}
uses
SysUtils,
Windows,
Classes,
Math;
const
cCount = 10000000; cTestAnz = 20;
var
Test: Integer;
MinZeit, MaxZeit, ZeitSum, Zeit, Freq: Int64;
I: Integer;
Anz: Integer;
function WriteLnTest: Int64;
var
Start, Ende: Int64;
F: TextFile;
I: Integer;
Text: string;
begin
QueryPerformanceCounter(Start);
AssignFile(F, 'C:\Test.dat');
try
Rewrite(F);
for I := 1 to cCount do
begin
Text := Format('Wert: %d', [I]);
WriteLn(F, Text);
if (I mod 100000) = 0 then
Write(#13 + Format('Test %2d: ', [Test]) + FormatFloat('000%', (I / cCount) * 100));
end;
finally
CloseFile(F);
end;
QueryPerformanceCounter(Ende);
Result := (Ende - Start);
end;
function StreamWriteTest: Int64;
var
Start, Ende: Int64;
I: Integer;
Stream: TFileStream;
Text: string;
begin
QueryPerformanceCounter(Start);
Stream := TFileStream.Create('C:\TestSt.dat', fmCreate or fmShareExclusive);
try
for I := 1 to cCount do
begin
Text := Format('Wert: %d', [I]) + #13#10;
Stream.WriteBuffer(Text[1], Length(Text));
if (I mod 100000) = 0 then
Write(#13 + Format('Test %2d: ', [Test]) + FormatFloat('000%', (I / cCount) * 100));
end;
finally
Stream.Free;
end;
QueryPerformanceCounter(Ende);
Result := (Ende - Start);
end;
begin
try
ZeitSum := 0;
MinZeit := MaxLongint;
MaxZeit := 0;
Anz := 0;
QueryPerformanceFrequency(Freq);
WriteLn('WriteLn-Test');
for I := 1 to cTestAnz do
begin
Test := I;
Zeit := WriteLnTest;
ZeitSum := ZeitSum + Zeit;
MinZeit := Min(MinZeit, Zeit);
MaxZeit := Max(MaxZeit, Zeit);
WriteLn(#13 + Format('Test %2d: 100%%; Zeit: %g', [Test, Zeit/Freq]));
Inc(Anz);
end;
WriteLn('----------------------------------------------');
WriteLn(Format('| Min : %g', [MinZeit/Freq]));
WriteLn(Format('| Max : %g', [MaxZeit/Freq]));
WriteLn(Format('| Avg : %g', [(ZeitSum/Anz)/Freq]));
WriteLn('----------------------------------------------');
WriteLn;
ZeitSum := 0;
MinZeit := MaxLongint;
MaxZeit := 0;
Anz := 0;
QueryPerformanceFrequency(Freq);
WriteLn('StreamWrite-Test');
for I := 1 to cTestAnz do
begin
Test := I;
Zeit := StreamWriteTest;
ZeitSum := ZeitSum + Zeit;
MinZeit := Min(MinZeit, Zeit);
MaxZeit := Max(MaxZeit, Zeit);
WriteLn(#13 + Format('Test %2d: 100%%; Zeit: %g', [Test, Zeit/Freq]));
Inc(Anz);
end;
WriteLn('----------------------------------------------');
WriteLn(Format('| Min : %g', [MinZeit/Freq]));
WriteLn(Format('| Max : %g', [MaxZeit/Freq]));
WriteLn(Format('| Avg : %g', [(ZeitSum/Anz)/Freq]));
WriteLn('----------------------------------------------');
WriteLn;
WriteLn('Fertig');
except
on E:Exception do
Writeln(E.Classname, ': ', E.Message);
end;
ReadLn;
end; |
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