On 12 Sep 2010, at 10:39, Martin Schreiber wrote: > 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?
In the above case: primarily the register allocator (which I mentioned before). Jonas _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
