FBWin32 fbc -gen gcc -Wc -O2 elapsed time is 50.85937545920933 seconds
FBWin64 fbc -gen gcc -Wc -O2 elapsed time is 39.82537974277511 seconds

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@Coolman it is your choice which compiler version you want to use, in my experience, FBx64 executables are usually faster than FBx86, except for graphics I don't have a real world benchmark, so here's the nbody benchmark my times on Windows 10 x64 FBwin32 fbc -w all -asm intel -gen gas launched fou...

finally. I will use the 32 bit version of freebasic. it is windows 64 compatible and most programs are faster. that said. I will soon stop using windows for linux. I would see the difference ...

why not harmonize freebasic 32 and 64 so that it generates only C code with the default compilation enabled with the option -O2. it would be more logical. and it will optimize the c-generated code in both versions. You can use the gcc backend also for 32-bit freebasic by passing "-gen gcc"...

I will see. to return to freebasic. does anyone have a benchmark source code to concretely evaluate the speed of 32 and 64 bit programs: - loop - between file output - arithmetic calculation - sorting ... no graphic test since apparently the 32 bit version is more optimized ... I would do it but I d...

Windows Make sure you recompiled everything with -dTEST_WIN32_SEH and appropriate -Cf parameters. By default win32 has a slower exception system than win64, but that is historic and will hopefully be fixed soon. I did not know this setting, I use classic optimizations. you mean with this setting. 3...

Windows

I know all that . by default freebasic 32 generates asm code while the 64-bit version generates only C code . which explains that 32 bit programs are much faster than 64 bit ... I hope it is more precise. Maybe more precise, but your conclusion is still wrong. In general asm code is not faster than...

I use freebasic only for small programs and lazarus freepascal for big projects. the speed difference of the programs (32 vs 64) generated surprised me. that's all . the technical details are not important. I expect a 64 bit program to be faster than a 32 bit program. it's always the case with the o...

I know all that. by default freebasic 32 generates asm code while the 64-bit version generates only C code.

which explains that 32 bit programs are much faster than 64 bit ...

I hope it is more precise.

Freebasic 32 bit generates code asm ... Freebasic 64 bit generates code C ... I did not know it. I only recently installed 64-bit freebasic ... it is obvious that the assembler is and has always been faster than the C. which explains that 32 bit programs are much faster than 64 bit ... for informati...

the colors are altered in this version line 253 Draw String(2, 2), iFPS_current & " fps", RGB(&hFF, &hFF, &hFF) it's more visible freebasic and gcc 32 bit : -gui = 38-40 fps -gen gcc -Wc -O2 = 70-71 fps -gen gcc -Wc -Ofast = 96-100 fps freebasic and gcc 64 bit : -gui = 18-1...

with freebasic and gcc 64 bit :

-gui = 13-14 fps ??? weird

-gen gcc -Wc -O2 = 20-21 fps ??? weird

-gen gcc -Wc -Ofast = 62-63 fps (even faster than 32 bit)

impressive. good job. -Os optimization for code size -O2 optimization more for code size and execution time -O3 optimization more for code size and execution time -Ofast O3 with fast none accurate math calculations -gui = 21-22 fps -gen gcc -Wc -O2 = 41-43 fps -gen gcc -Wc -Ofast = 44-46 fps the ve...