wasm/js/java/C++ CPU tests
what is it- Comparison of calculation speed and drawing speed
This is just some random code I made to see how it works(in 2018) while was learning WASM and WebGL/OpenGL, this has no real use and display nothing.
Check my new projects on https://github.com/danilw
todo - this is done, new projects next
Live test
| name | wasm | javascript |
|---|---|---|
| basic | wasm_basic | js_basic |
| terrain | wasm_terrain | js_terrain |
| render | wasm_render | js_render |
| render_mini | wasm_render_mini | js_render_mini |
| opengl_basic | wasm_opengl_basic | js_opengl_basic, vertex shader port |
| sgame(normal) | wasm_sgame n | js_sgame n |
| sgame(best) | wasm_sgame b | js_sgame b_wfix, same but without twgl library |
Result
sgame(GPU+CPU) - very simple game using GLSL without textures, control: F fullscreen, W A S D - move, mouse scroll or 1/2 - zoom in/out, SPACE to jump from planets, R reset zoom, P pause, Left/Right mouse shoot. Normal version has max 3 noise loops, Best 5 noise loops (also in best max enemy 50 with max bullets 50, normal valus is 25).
Work very well in wasm, native C++ program has better "image quality"(because GL_ES in browsers).
sgame(best) has bug in Windows(noise bugged somehow), try this fixed wasm_sgame win fix
| tester | result |
|---|---|
| firefox | the slowest |
| chrome | the slowest |
| java | 2x slower then wasm |
| C++ | the fastest |
| wasm chrome | fast, but GL_ES (with bug on windows) |
| wasm firefox | fast, but GL_ES (with bug on windows) |
Note 1 original glsl file are here glsl/myfs.glsl
Note 2 I think my "array logic" in sgame project bugged, becuase java and javascript "deque" lists shift all "object coordinates" by half of their radius(look in js or java code variable fixx(also added few more +/- half of radius in code)) :)
opengl_basic(GPU+CPU) - animated OpenGL scene (1.3kk points change position each frame(final scene (P and D chars) use 2.4kk points), without GLSL. note windows(OS) webbrowsers with wasm do not have OpenGL support, wasm was tested only on linux(it work)
| tester | fps (final scene fps first) |
|---|---|
| firefox | 4-15 |
| chrome | 10-30 |
| java | 25-50 |
| C++ | 35-80 |
| wasm chrome | 10-18 |
| wasm firefox | 10-14 |
render_mini(CPU) - animated(live move camera) 3d scene render (software(CPU) render without GPU))
Camera control (in all versions same):1 or 2 change scene, Q or E rotate camera, W or S scroll speed, A or D tilt camera
Edit (source code) viewWidth and viewHeight to change render resolution (current for test 300x200) also viewScaleX/Y to set image Scale, disable_ani to True will disable animations.
| tester | timetocalc(msec) |
|---|---|
| firefox | 120-150 (fps 6) |
| js45 | 100-120 |
| chrome | 100-135 (fps 10) |
| java | 90-210 (fps 8) |
| C++ | 80-120 (fps 8) |
| wasm chrome | 120-150 (fps 6) |
| wasm firefox | 150-200 (fps 4) |
render(CPU) - 3d scene render with shadows and reflection (software(CPU) render without GPU))
| tester | timetocalc(sec) |
|---|---|
| firefox | 367 (6.1 min) |
| js45 | 387 (6.5 min) |
| chrome | 410 (6.8 min) |
| java | 28 |
| C++ | 21 |
| wasm chrome | 41 |
| wasm firefox | 34 |
terrain(CPU) - recursion with lambda expressions in logic, and draw 2d map
| tester | timetocalc(msec) | timetodraw(msec) |
|---|---|---|
| firefox | 30-60 | 1000 |
| js45 | 17-35 | -- |
| chrome | 200-250 | 800-900 |
| java Graphics2D | 170-220 | 2200-3000 |
| C++ cairo | 10-50 | 250-350 |
| wasm chrome sdl | 50-60 | 1200-1500 |
| wasm firefox sdl | 30-35 | 800-1000 |
basic(CPU)- simple memory copy, string concat, number to string
| tester | timetocalc(sec) |
|---|---|
| firefox | 15 |
| js45 | 15 |
| chrome | 22 |
| java | 20 |
| C | 11 |
| wasm chrome | 44 |
| wasm firefox | 55 |
soft version: openjdk version "9-internal", Chrome 58.0, Firefox 52.1, gcc-5, Emscripten 1.37.9
Building
read build_readme.md
Graphic
