-
Notifications
You must be signed in to change notification settings - Fork 319
/
wasm-bench-jsmem.js
495 lines (410 loc) · 13.6 KB
/
wasm-bench-jsmem.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
'use strict';
var faust = faust || {};
// Standard Faust DSP
faust.mydsp = function (instance, buffer_size, sample_rate) {
var output_handler = null;
var ins, outs;
var dspInChannnels = [];
var dspOutChannnels = [];
// Keep JSON parsed object
var json_object = JSON.parse(getJSONmydsp());
console.log("Compiled with wasm backend, libfaust version : %s, options : %s", json_object.version, json_object.compile_options);
var numIn = parseInt(json_object.inputs);
var numOut = parseInt(json_object.outputs);
// Memory allocator
var ptr_size = 4;
var sample_size = 4; // float
function pow2limit (x)
{
var n = 65536; // Minimum = 64 kB
while (n < x) { n = 2 * n; }
return n;
}
var factory = instance.exports;
// JS side allocated wasm memory
var HEAP = module_memory.buffer;
var HEAP32 = new Int32Array(HEAP);
var HEAPF32 = new Float32Array(HEAP);
// bargraph
var outputs_timer = 5;
var outputs_items = [];
// input items
var inputs_items = [];
// buttons items
var buttons_items = [];
// default values
var default_values = [];
// DSP is placed first with index 0. Audio buffer start at the end of DSP.
var audio_heap_ptr = parseInt(json_object.size);
// Setup pointers offset
var audio_heap_ptr_inputs = audio_heap_ptr;
var audio_heap_ptr_outputs = audio_heap_ptr_inputs + (numIn * ptr_size);
// Setup buffer offset
var audio_heap_inputs = audio_heap_ptr_outputs + (numOut * ptr_size);
var audio_heap_outputs = audio_heap_inputs + (numIn * buffer_size * sample_size);
// Start of DSP memory : DSP is placed first with index 0
var dsp = 0;
var pathTable = [];
function update_outputs ()
{
if (outputs_items.length > 0 && output_handler && outputs_timer-- === 0) {
outputs_timer = 5;
for (var i = 0; i < outputs_items.length; i++) {
output_handler(outputs_items[i], factory.getParamValue(dsp, pathTable[outputs_items[i]]));
}
}
}
function computeAux (inputs, outputs)
{
var i, j;
// Read inputs
for (i = 0; i < numIn; i++) {
var input = inputs[i];
var dspInput = dspInChannnels[i];
dspInput.set(input);
}
// Compute
factory.compute(dsp, buffer_size, ins, outs);
// Update bargraph
update_outputs();
// Write outputs
for (i = 0; i < numOut; i++) {
var output = outputs[i];
var dspOutput = dspOutChannnels[i];
output.set(dspOutput);
}
};
// JSON parsing
function parse_ui (ui)
{
for (var i = 0; i < ui.length; i++) {
parse_group(ui[i]);
}
}
function parse_group (group)
{
if (group.items) {
parse_items(group.items);
}
}
function parse_items (items)
{
var i;
for (i = 0; i < items.length; i++) {
parse_item(items[i]);
}
}
function parse_item (item)
{
if (item.type === "vgroup"
|| item.type === "hgroup"
|| item.type === "tgroup") {
parse_items(item.items);
} else if (item.type === "hbargraph"
|| item.type === "vbargraph") {
// Keep bargraph adresses
outputs_items.push(item.address);
pathTable[item.address] = parseInt(item.index);
} else if (item.type === "vslider"
|| item.type === "hslider"
|| item.type === "button"
|| item.type === "checkbox"
|| item.type === "nentry") {
// Keep inputs adresses
inputs_items.push(item.address);
pathTable[item.address] = parseInt(item.index);
if (item.type === "button") {
buttons_items.push(item.address);
default_values.push(0);
} else if (item.type === "checkbox") {
default_values.push(0);
} else {
default_values.push(parseFloat(item.init));
}
}
}
function init ()
{
var i;
if (numIn > 0) {
ins = audio_heap_ptr_inputs;
for (i = 0; i < numIn; i++) {
HEAP32[(ins >> 2) + i] = audio_heap_inputs + ((buffer_size * sample_size) * i);
}
// Prepare Ins buffer tables
var dspInChans = HEAP32.subarray(ins >> 2, (ins + numIn * ptr_size) >> 2);
for (i = 0; i < numIn; i++) {
dspInChannnels[i] = HEAPF32.subarray(dspInChans[i] >> 2, (dspInChans[i] + buffer_size * sample_size) >> 2);
}
}
if (numOut > 0) {
outs = audio_heap_ptr_outputs;
for (i = 0; i < numOut; i++) {
HEAP32[(outs >> 2) + i] = audio_heap_outputs + ((buffer_size * sample_size) * i);
}
// Prepare Out buffer tables
var dspOutChans = HEAP32.subarray(outs >> 2, (outs + numOut * ptr_size) >> 2);
for (i = 0; i < numOut; i++) {
dspOutChannnels[i] = HEAPF32.subarray(dspOutChans[i] >> 2, (dspOutChans[i] + buffer_size * sample_size) >> 2);
}
}
// bargraph
parse_ui(json_object.ui);
// Init DSP
factory.init(dsp, sample_rate);
}
init();
// External API
return {
getSampleRate : function ()
{
return factory.getSampleRate(dsp);
},
getNumInputs : function ()
{
return parseInt(json_object.inputs);
},
getNumOutputs : function ()
{
return parseInt(json_object.outputs);
},
init : function (sample_rate)
{
factory.init(dsp, sample_rate);
},
instanceInit : function (sample_rate)
{
factory.instanceInit(dsp, sample_rate);
},
instanceConstants : function (sample_rate)
{
factory.instanceConstants(dsp, sample_rate);
},
instanceResetUserInterface : function ()
{
factory.instanceResetUserInterface(dsp);
},
instanceClear : function ()
{
factory.instanceClear(dsp);
},
setOutputParamHandler : function (handler)
{
output_handler = handler;
},
getOutputParamHandler : function ()
{
return output_handler;
},
setParamValue : function (path, val)
{
factory.setParamValue(dsp, pathTable[path], val);
},
getParamValue : function (path)
{
return factory.getParamValue(dsp, pathTable[path]);
},
getParams : function()
{
return inputs_items;
},
getButtonsParams : function()
{
return buttons_items;
},
getJSON : function ()
{
return getJSONmydsp();
},
compute : function (inputs, outputs)
{
computeAux(inputs, outputs);
},
checkDefaults : function ()
{
for (var i = 0; i < default_values.length; i++) {
if (default_values[i] !== factory.getParamValue(dsp, pathTable[inputs_items[i]])) return false;
}
return true;
},
initRandom : function ()
{
for (var i = 0; i < default_values.length; i++) {
factory.setParamValue(dsp, pathTable[inputs_items[i]], 0.123456789);
}
}
};
};
// Bench code
var buffer_size = 1024;
var sample_rate = 44100;
var inputs = [];
var outputs = [];
var run = -1;
var bench_num = 3;
var NV = 4096;
var input_index = 0;
var output_index = 0;
// JS side allocated wasm memory
var module_memory = new WebAssembly.Memory({ initial: 512 });
var createBuffers = function(ins, outs)
{
console.log("Allocate ins/outs buffers");
for (var i = 0; i < ins; i++) {
var input = new Float32Array(buffer_size * NV);
// Init input with noise
for (var j = 0; j < buffer_size * NV; j++) {
input[j] = (Math.random() * 2) - 1.0;
}
inputs.push(input);
}
for (var i = 0; i < outs; i++) {
outputs.push(new Float32Array(buffer_size * NV));
}
}
function benchOne(dsp, run)
{
var time1 = new Date().getTime();
// Bench DSP
while (run-- > 0) {
var ins_slice = [];
var outs_slice = [];
for (var i = 0; i < dsp.getNumInputs(); i++) {
ins_slice.push(inputs[i].subarray(input_index * buffer_size, (input_index + 1) * buffer_size));
input_index = (1 + input_index) % NV;
}
for (var i = 0; i < dsp.getNumOutputs(); i++) {
outs_slice.push(outputs[i].subarray(output_index * buffer_size, (output_index + 1) * buffer_size));
output_index = (1 + output_index) % NV;
}
dsp.compute(ins_slice, outs_slice);
}
var time2 = new Date().getTime();
return (time2 - time1);
}
function megapersec(frames, chans, dur)
{
// Use 4 bytes for samples
return (frames * chans * 4) / (1024 * 1024 * dur);
}
function bench(instance, display_handler)
{
// Creates DSP
var DSP = faust.mydsp(instance, buffer_size, sample_rate);
// First call : create buffers and estimate a proper 'run' value
if (run === -1) {
// Setup buffers
createBuffers(DSP.getNumInputs(), DSP.getNumOutputs(), buffer_size);
// Setup a good value for 'run'
var delta = benchOne(DSP, 1000);
console.log("Delta : " + delta);
run = (1000 / delta) * 5000;
}
var mega_results = [];
var cpu_results = [];
for (var i = 0; i < bench_num; i++) {
// Do the bench and keep result
var duration = benchOne(DSP, run);
var cpu = (duration * sample_rate) / (run * buffer_size * 10);
var mega = megapersec(buffer_size, (DSP.getNumInputs() + DSP.getNumOutputs()), duration/run/1000);
mega_results.push(mega);
cpu_results.push(cpu);
console.log("MBytes/sec : " + mega.toFixed(2));
console.log("DSP CPU % : " + cpu.toFixed(2));
}
// Compute mean
var mega_sum = 0.;
var cpu_sum = 0.;
for (var i = 0; i < bench_num; i++) {
mega_sum += mega_results[i];
cpu_sum += cpu_results[i];
}
var mega_mean = mega_sum/bench_num;
var cpu_mean = cpu_sum/bench_num;
console.log("MBytes/sec mean: " + mega_mean.toFixed(2));
console.log("DSP CPU mean % : " + cpu_mean.toFixed(2));
if (display_handler) {
display_handler(mega_mean, cpu_mean);
}
}
faust.createmydsp = function(display_handler)
{
var importObject = {
env: {
memoryBase: 0,
tableBase: 0,
// Integer version
_abs: Math.abs,
// Float version
_acosf: Math.acos,
_asinf: Math.asin,
_atanf: Math.atan,
_atan2f: Math.atan2,
_ceilf: Math.ceil,
_cosf: Math.cos,
_expf: Math.exp,
_floorf: Math.floor,
_fmodf: function(x, y) { return x % y; },
_logf: Math.log,
_log10f: Math.log10,
_max_f: Math.max,
_min_f: Math.min,
_remainderf: function(x, y) { return x - Math.round(x/y) * y; },
_powf: Math.pow,
_roundf: Math.fround,
_sinf: Math.sin,
_sqrtf: Math.sqrt,
_tanf: Math.tan,
// Double version
_acos: Math.acos,
_asin: Math.asin,
_atan: Math.atan,
_atan2: Math.atan2,
_ceil: Math.ceil,
_cos: Math.cos,
_exp: Math.exp,
_floor: Math.floor,
_fmod: function(x, y) { return x % y; },
_log: Math.log,
_log10: Math.log10,
_max_: Math.max,
_min_: Math.min,
_remainder:function(x, y) { return x - Math.round(x/y) * y; },
_pow: Math.pow,
_round: Math.fround,
_sin: Math.sin,
_sqrt: Math.sqrt,
_tan: Math.tan,
memory: module_memory,
table: new WebAssembly.Table({ initial: 0, element: 'anyfunc' })
}
};
if (typeof window !== "undefined") {
fetch('mydsp.wasm')
.then(dsp_file => dsp_file.arrayBuffer())
.then(dsp_bytes => WebAssembly.instantiate(dsp_bytes, importObject))
.then(dsp_module => bench(dsp_module.instance, display_handler))
.catch(function(error) { console.log(error); faust.error_msg = "Faust mydsp cannot be loaded or compiled"; });
} else {
var dsp_bytes = os.file.readFile('mydsp.wasm', 'binary');
WebAssembly.instantiate(dsp_bytes, importObject)
.then(dsp_module => bench(dsp_module.instance, display_handler))
.catch(function(error) { console.log(error); faust.error_msg = "Faust karplus cannot be loaded or compiled"; });
}
}
// Startup
if (typeof window !== "undefined") {
startBenchmark = function() {
faust.createmydsp(function(v1, v2) {
document.getElementById("megapersec").value = v1.toFixed(2);
document.getElementById("cpu").value = v2.toFixed(2);
});
}
} else {
startBenchmark = function() {
faust.createmydsp(function(v1, v2) {
console.log('MBits/s', v1.toFixed(2));
console.log('CPU', v2.toFixed(2));
});
}();
}