http://dennishomepage.gugs-cats.dk/LowerCaseChallenge.htm
LowerCaseShaPas2_c This one here is in Pascal, using GOTO and LABEL which consistently work fast on both -Og and -OG But no one wants to maintain a GOTO and a LABEL.. [LowerCaseShaPas2_c] was slightly slower than [lowercase 6 ] (second fastest) in -OG mode [LowerCaseShaPas2_c] was slightly faster than [lowercase 9] (still second fastest) in -Og mode .. so it's more consistent across compiler options it seemed So maybe [lowercase 6 ] result should be submitted to fastcode to be tested? Also, if no one wants to use the assembly functions and GOTO/LABEL functions in the RTL due to code bloat/maintenance, we could always offer an optional unit where people could call the fast functions only if they needed them badly. Just like how fastcode does, external from the VCL. ----- Original Message ----- From: "Martin Schreiber" <[EMAIL PROTECTED]> To: "FPC developers' list" <fpc-devel@lists.freepascal.org> Sent: Saturday, June 11, 2005 9:29 PM Subject: Re: [fpc-devel] Patch to speed up Uppercase/Lowercase functions On Sunday 12 June 2005 00.23, Jonas Maebe wrote: > Try also with register variables on (-O???r), it will probably more > closely match Kylix' results then in case of the loop versions. Kylix: lowercase execution time: 336887 lowercase 1 execution time: 380923 lowercase 2 execution time: 375411 lowercase 3 execution time: 369814 lowercase 4 execution time: 320665 lowercase 5 execution time: 300580 lowercase 6 execution time: 219047 lowercase 7 execution time: 356606 lowercase 8 execution time: 249913 lowercase 9 execution time: 252431 -OG1r lowercase execution time: 465596 lowercase 1 execution time: 378780 lowercase 2 execution time: 389711 lowercase 3 execution time: 375878 lowercase 4 execution time: 225029 lowercase 5 execution time: 228708 lowercase 6 execution time: 158026 lowercase 7 execution time: 264930 lowercase 8 execution time: 182939 lowercase 9 execution time: 165446 -OG2r lowercase execution time: 471705 lowercase 1 execution time: 378160 lowercase 2 execution time: 388112 lowercase 3 execution time: 395773 lowercase 4 execution time: 227191 lowercase 5 execution time: 227925 lowercase 6 execution time: 156750 lowercase 7 execution time: 258313 lowercase 8 execution time: 181842 lowercase 9 execution time: 165069 -Og1r lowercase execution time: 464843 lowercase 1 execution time: 486571 lowercase 2 execution time: 463269 lowercase 3 execution time: 472342 lowercase 4 execution time: 247544 lowercase 5 execution time: 399030 lowercase 6 execution time: 646651 lowercase 7 execution time: 263588 lowercase 8 execution time: 636059 lowercase 9 execution time: 170660 -Og2r lowercase execution time: 470038 lowercase 1 execution time: 487086 lowercase 2 execution time: 459035 lowercase 3 execution time: 476304 lowercase 4 execution time: 243678 lowercase 5 execution time: 399953 lowercase 6 execution time: 646284 lowercase 7 execution time: 265147 lowercase 8 execution time: 632796 lowercase 9 execution time: 169471 Martin _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel