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
214import { Bench } from "tinybench"
import { Timeline, AnimationTrack, Keyframe } from "../core/animation"
import { Artboard } from "../core/scene/nodes/artboard"
import { Color } from "../core/math/color"
import { SceneNode } from "../core/scene/node"
type BenchRow = Record<string, unknown>
function createTimelineWithTracks(
trackCount: number,
keyframesPerTrack: number,
duration: number,
): { timeline: Timeline; duration: number } {
const artboard = new Artboard(1920, 1080, Color.white())
const timeline = new Timeline(duration, 60)
for (let i = 0; i < trackCount; i++) {
const node = new SceneNode()
artboard.addChild(node)
const track = new AnimationTrack(node, "transform.position.x")
for (let k = 0; k < keyframesPerTrack; k++) {
const t =
keyframesPerTrack === 1
? 0
: (duration * k) / (keyframesPerTrack - 1)
const value = k % 2 === 0 ? 0 : 500
const keyframe = new Keyframe(t, value, "linear")
track.addKeyframe(keyframe)
}
timeline.addTrack(track)
}
return { timeline, duration }
}
function createSceneHierarchy(nodeCount: number): {
root: Artboard
nodes: SceneNode[]
} {
const root = new Artboard(1920, 1080, Color.white())
const nodes: SceneNode[] = [root]
while (nodes.length < nodeCount) {
const parentIndex = Math.floor(Math.random() * nodes.length)
const parent = nodes[parentIndex]!
const child = new SceneNode()
parent.addChild(child)
nodes.push(child)
}
return { root, nodes }
}
function buildMarkdownTable(rows: BenchRow[]): string {
const colWidth = 32
const pad = (value: unknown) => String(value ?? "").padEnd(colWidth)
const header =
`|${pad("name")}|` +
`${pad("ops/s")}|` +
`${pad("latency avg (ns)")}|` +
`${pad("samples")}|`
const separator =
`|${"-".repeat(colWidth)}|` +
`${"-".repeat(colWidth)}|` +
`${"-".repeat(colWidth)}|` +
`${"-".repeat(colWidth)}|`
if (rows.length === 0) {
return `${header}\n${separator}`
}
const body = rows
.map((row) => {
const name = row["Task name"]
const ops = row["Throughput avg (ops/s)"]
const latency = row["Latency avg (ns)"]
const samples = row["Samples"]
return (
`|${pad(name)}|` +
`${pad(ops)}|` +
`${pad(latency)}|` +
`${pad(samples)}|`
)
})
.join("\n")
return `${header}\n${separator}\n${body}`
}
async function updateReadme(section: string) {
const readme = await Bun.file("readme.md").text()
const lines = readme.split("\n")
const heading = "### benchmarks"
let headingIndex = lines.findIndex((line) => line === heading)
if (headingIndex === -1) {
// Append new section at the end
if (lines[lines.length - 1] !== "") {
lines.push("")
}
lines.push(heading, "", ...section.split("\n"), "")
} else {
const startIndex = headingIndex + 1
let endIndex = lines.length
for (let i = startIndex; i < lines.length; i++) {
if (lines[i]!.startsWith("### ")) {
endIndex = i
break
}
}
const newLines = section.split("\n")
lines.splice(startIndex, endIndex - startIndex, "", ...newLines, "")
}
await Bun.write("readme.md", lines.join("\n"))
}
async function runTimelineBenchmarks(): Promise<string> {
const bench = new Bench({ time: 500 })
const configs = [
{ name: "timeline-eval-10-tracks", tracks: 10, keyframes: 2 },
{ name: "timeline-eval-100-tracks", tracks: 100, keyframes: 2 },
{ name: "timeline-eval-500-tracks", tracks: 500, keyframes: 2 },
] as const
const duration = 5
for (const config of configs) {
const { timeline } = createTimelineWithTracks(
config.tracks,
config.keyframes,
duration,
)
bench.add(config.name, () => {
const t = Math.random() * duration
timeline.evaluate(t)
})
}
await bench.run()
console.log("\ntimeline benchmarks")
console.table(bench.table())
const rows = bench.table() as BenchRow[]
const table = buildMarkdownTable(rows)
return `<details>
<summary>timeline</summary>
${table}
</details>`
}
async function runSceneBenchmarks(): Promise<string> {
const bench = new Bench({ time: 500 })
const configs = [
{ name: "scene-world-transform-1k-nodes", nodes: 1000 },
{ name: "scene-world-transform-5k-nodes", nodes: 5000 },
] as const
for (const config of configs) {
const { root, nodes } = createSceneHierarchy(config.nodes)
const target = nodes[nodes.length - 1]!
bench.add(config.name, () => {
root.transform.position.x += 1
root.notifyTransformChanged()
target.getWorldTransform()
})
}
await bench.run()
console.log("\nscene graph benchmarks")
console.table(bench.table())
const rows = bench.table() as BenchRow[]
const table = buildMarkdownTable(rows)
return `<details>
<summary>scene graph</summary>
${table}
</details>`
}
async function main() {
console.log("running samcan benchmarks... (tinybench)")
const timelineSection = await runTimelineBenchmarks()
const sceneSection = await runSceneBenchmarks()
const section = `${timelineSection}\n\n${sceneSection}`
await updateReadme(section)
}
await main()
export {}