Neat example and nice demo of the playground (prototype version). I haven't done much performance testing on the playground. I was expecting the playground to be a large order of magnitude slower than J904. I was pleasantly surprised to this example is 2x slower on the playground, which is in line with what the emscripten website says (noted below)
On my machine: JVERSION Engine: j904/j64avx2/windows Beta-a: commercial/2022-04-09T17:57:22 Library: 9.04.01 Qt IDE: 2.0.3/6.2.4(6.2.4) Platform: Win 64 Installer: J904 install InstallPath: c:/users/joebogner/downloads/j904 Contact: www.jsoftware.com (6!:2) 'plot bspir 10000' 0.253758 vs the playground Google Chrome 96.0.4664.110 (Official Build) (64-bit) (cohort: Stable) Revision d5ef0e8214bc14c9b5bbf69a1515e431394c62a6-refs/branch-heads/4664@ {#1283} OS Windows 10 Version 20H2 (Build 19042.1415) JavaScript V8 9.6.180.21 (6!:2) 'plot bspir 10000' 0.507 From emscripten: https://emscripten.org/docs/optimizing/Optimizing-Code.html "Emscripten-compiled code can currently achieve approximately half the speed of a native build. If the performance is significantly poorer than expected, you can also run through the additional troubleshooting steps below:" "Generally you should first compile and run your code without optimizations (the default). Once you are sure that the code runs correctly, you can use the techniques in this article to make it load and run faster." I tried compiling with -O3 ( https://github.com/jsoftware/j-playground/blob/j903_wasm/jsrc/makefile.html#L7) and it didn't make any appreciable difference So, I went back to the default options of emscripten while we continue to focus on correctness. My guess is that any speedup will come from J code and not tweaks to the C->JS compilation (emscripten) since it seems to be in line with general emscripten expectations. Are you seeing drastically different times on your machine? On Mon, May 16, 2022 at 8:12 PM Raul Miller <rauldmil...@gmail.com> wrote: > https://rosettacode.org/wiki/Babylonian_spiral > > The online J version is significantly slower than the online phix version. > > Does anyone feel like working on this? > > Thanks, > > -- > Raul > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm