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
|
'use strict';
var fs = require('fs');
var mbgl = require('../index');
var path = require('path');
var test = require('tape');
var testParams = {
mapPoolSize: 10,
numRenderings: 100,
heapGrowthThreshold: 0,
ratio: 2
};
function readFixture(file) {
return fs.readFileSync(path.join('test/fixtures/resources', file));
}
var style_raster = readFixture('style_raster.json').toString('utf8');
var style_vector = readFixture('style_vector.json').toString('utf8');
var sprite_json = readFixture('sprite.json');
var sprite_png = readFixture('sprite.png');
var glyph = readFixture('glyphs.pbf');
var source_raster = readFixture('source_raster.json');
var source_vector = readFixture('source_vector.json');
var tile_raster = readFixture('raster.tile');
var tile_vector = readFixture('vector.tile');
test('Memory', function(t) {
// Trigger garbage collection before starting test, then initialize
// heap size
if (typeof gc === 'function') gc();
var lastHeapSize = process.memoryUsage()['heapUsed'];
var options = {
request: function(req, callback) {
if (req.url == null) {
t.fail('invalid file request');
} else if (req.url.indexOf('sprite') > -1 && req.url.endsWith('json')) {
callback(null, { data: sprite_json });
} else if (req.url.indexOf('sprite') > -1 && req.url.endsWith('png')) {
callback(null, { data: sprite_png });
} else if (req.url.indexOf('fonts') > -1 && req.url.endsWith('pbf')) {
callback(null, { data: glyph });
} else if (req.url.endsWith('mapbox.satellite')) {
callback(null, { data: source_raster });
} else if (req.url.indexOf('satellite') > -1 && (req.url.endsWith('png') || req.url.endsWith('webp'))) {
callback(null, { data: tile_raster });
} else if (req.url.endsWith('mapbox.mapbox-streets-v7')) {
callback(null, { data: source_vector });
} else if (req.url.indexOf('streets') > -1 && req.url.endsWith('pbf')) {
callback(null, { data: tile_vector });
} else {
t.fail('unhandled file request: ' + req.url);
}
},
ratio: testParams.ratio,
};
var mapPool = []
for (var i = 0; i < testParams.mapPoolSize; ++i) {
var map = new mbgl.Map(options);
mapPool.push(map);
}
var renderCount = 0;
var heapGrowth = 0;
var interval = setInterval(function () {
if (mapPool.length == 0) {
return;
}
var map = mapPool.shift();
if (Math.floor(Math.random() * 2)) {
map.load(style_raster);
} else {
map.load(style_vector);
}
map.render({ zoom: 16 }, function(err, pixels) {
mapPool.push(map);
if (renderCount % (testParams.numRenderings / 10) == 0) {
// Manually trigger garbage collection
if (typeof gc === 'function') gc();
var currentHeapSize = process.memoryUsage()['heapUsed'];
// Print some progress, so slow build bots don't timeout.
t.comment("Rendering (" + renderCount.toString() +
"/" + testParams.numRenderings.toString() + ")");
heapGrowth = heapGrowth + currentHeapSize - lastHeapSize;
lastHeapSize = currentHeapSize;
}
if (++renderCount == testParams.numRenderings) {
t.ok(heapGrowth < testParams.heapGrowthThreshold, heapGrowth);
t.end();
clearInterval(interval);
}
});
}, 1);
});
|
