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program TestShortStr;
uses timer;
const
TestSize=1000; {Use at least 10 for reasonable results}
type
BenType=array[1..8] of longint;
var
Total : longint;
headBen,
LoadBen,
ConcatBen,
DelBen,
InsBen,
CopyBen,
CmpBen,
MixBen : BenType;
procedure TestSpeed(Row,Len:byte);
var
l : longint;
hstr,
OrgStr : shortstring;
begin
HeadBen[Row]:=Len;
OrgStr:='';
while Length(OrgStr)<Len do
OrgStr:=OrgStr+'aaaaaaaaaa';
OrgStr:=Copy(OrgStr,1,Len);
OrgStr[Len]:='b';
{Load/Store}
Start;
for l:=1to 5000*TestSize do
HSTr:=OrgStr;
Stop;
inc(Total,MSec);
LoadBen[Row]:=MSec;
{Concat}
Start;
for l:=1to 2000*TestSize do
begin
Hstr:='aaa';
Hstr:=Hstr+OrgStr;
end;
Stop;
inc(Total,MSec);
ConcatBen[Row]:=MSec;
{Copy}
Start;
for l:=1to 2000*TestSize do
HSTr:=Copy(OrgStr,1,Len);
Stop;
inc(Total,MSec);
CopyBen[Row]:=MSec;
{Delete}
Start;
for l:=1to 2000*TestSize do
begin
Hstr:=OrgStr;
Delete(HStr,1,9);
end;
Stop;
inc(Total,MSec);
DelBen[Row]:=MSec;
{Insert}
Start;
for l:=1to 1000*TestSize do
begin
Hstr:='aaa';
Insert(OrgStr,hstr,2);
Hstr:=OrgStr;
Insert('aaaaaaaaaaaaa',hstr,9);
end;
Stop;
inc(Total,MSec);
InsBen[Row]:=MSec;
{Compare}
Start;
Hstr:='aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'+
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'+
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
for l:=1to 5000*TestSize do
if OrgStr=Hstr then;
Stop;
inc(Total,MSec);
CmpBen[Row]:=MSec;
{Mixed}
Start;
for l:=1 to 400*TestSize do
begin
hstr:=OrgStr;
hstr:=Copy(hstr,1,30);
Delete(hstr,5,40);
hstr:=Copy(hstr,1,length(hstr));
hstr:=hstr+' ';
Delete(hstr,length(hstr)-2,2);
Insert('aaaaaaaaaaaaaaaaaaaaaaaaaaaa',hstr,10);
Insert('aaaaaaaaaaaaaaaaaaaaaaaaaaaa',hstr,20);
hstr:=Copy(hstr,1,length(hstr));
hstr:=Copy(hstr,1,80)+'aaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbb';
hstr:=hstr+OrgStr;
end;
Stop;
inc(Total,MSec);
MixBen[Row]:=MSec;
end;
procedure PutBen(const r:BenType);
var
i : byte;
rtot : cardinal;
begin
rtot:=0;
for i:=1to 8 do
begin
inc(rtot,r[i]);
Write(r[i]:6);
end;
Write('':4);
Write('avg=',rtot div 8);
Writeln;
end;
begin
VerboseTimer:=false;
WriteLn ('Shortstring Speed Test');
WriteLn;
TestSpeed(1,10);
TestSpeed(2,30);
TestSpeed(3,50);
TestSpeed(4,70);
TestSpeed(5,100);
TestSpeed(6,150);
TestSpeed(7,200);
TestSpeed(8,250);
Write('Length ');
PutBen(HeadBen);
WriteLn('------------------------------------------------------------------------------');
Write('Load/Store ');
PutBen(LoadBen);
Write('Concat ');
PutBen(ConcatBen);
Write('Copy ');
PutBen(CopyBen);
Write('Delete ');
PutBen(DelBen);
Write('Insert ');
PutBen(InsBen);
Write('Compare ');
PutBen(CmpBen);
Write('Mixed ');
PutBen(MixBen);
WriteLn('Shortstring-Benchmark avarage ',Total div 8,' ms');
end.
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