[fpc-devel] FPC/Lazarus Rebuild performance

[Martin Schreiber]

On Sunday, 12. September 2010 10.29:32 Florian Klämpfl wrote:
> >
> > And that results in a discrepancy of factor 5..10? I can't believe it.
>
> Digging out 1.0.10 and using some extreme example:
>
> C:\fpc\tests\webtbs>"c:\pp 1.0.10\bin\win32\ppc386.exe" tw2242 -O2
> Free Pascal Compiler version 1.0.10 [2003/06/27] for i386
> Copyright (c) 1993-2003 by Florian Klaempfl
> Target OS: Win32 for i386
> Compiling tw2242.pp
> Linking tw2242.exe
> 13083 Lines compiled, 0.8 sec
>
> C:\fpc\tests\webtbs>fpc tw2242 -O2
> Free Pascal Compiler version 2.4.0 [2009/12/18] for i386
> Copyright (c) 1993-2009 by Florian Klaempfl
> Target OS: Win32 for i386
> Compiling tw2242.pp
> Linking tw2242.exe
> 13083 lines compiled, 4.7 sec , 301376 bytes code, 1864 bytes data

Impressive. Now we can hook in. Where is the difference? What makes 2.4.0 so 
much slower?