blob bench: old (R2) vs new (S3)

\n ${label}\n \n ${Math.round(ms)}ms\n

`;\n };\n\n const groups = sizes.flatMap((size) =>\n ops.map((op) => {\n const v1 = results.find((r) => r.size === size && r.op === op && r.version === \"v1\")!.stats;\n const v2 = results.find((r) => r.size === size && r.op === op && r.version === \"v2\")!.stats;\n const x = (v1.median / v2.median).toFixed(1);\n return `

${op} · ${size} ${x}× faster

\n ${bar(\"old (R2)\", v1.median, \"old\")}\n ${bar(\"new (S3)\", v2.median, \"new\")}\n

`;\n })\n ).join(\"\");\n\n return `\nblob bench: old (R2) vs new (S3)\n\n

blob latency: old (R2) vs new (S3)

median of ${iterations} samples · in-region · ran in ${(totalMs / 1000).toFixed(1)}s

\n${groups}`;\n}\n",[67],"fb107613-84cd-4606-81e3-313c91f316c2","bench.ts","eabc8910-6124-11f1-8162-1607ee4eb77e",3,["D",1780694840507],1,"import { API_URL } from \"https://esm.town/v/std/API_URL\";\n\nconst TOKEN = Deno.env.get(\"valtown\");\n\n// The ONLY difference between old and new blob is the API version segment:\n// v1 -> R2-backed (old), v2 -> S3-backed (new scoped blob)\n// so we parameterize a single client over the version and run both\n// through identical code paths to keep the comparison fair.\ntype Version = \"v1\" | \"v2\";\n\nasync function set(v: Version, key: string, body: BodyInit) {\n const res = await fetch(`${API_URL}/${v}/blob/${encodeURIComponent(key)}`, {\n method: \"POST\",\n headers: { Authorization: `Bearer ${TOKEN}` },\n body,\n });\n if (!res.ok) throw new Error(`${v} set ${res.status}: ${await res.text()}`);\n}\n\nasync function get(v: Version, key: string): Promise {\n const res = await fetch(`${API_URL}/${v}/blob/${encodeURIComponent(key)}`, {\n headers: { Authorization: `Bearer ${TOKEN}` },\n });\n if (!res.ok) throw new Error(`${v} get ${res.status}: ${await res.text()}`);\n // Drain the body fully so we time the whole download, not just headers.\n return (await res.arrayBuffer()).byteLength;\n}\n\nasync function del(v: Version, key: string) {\n const res = await fetch(`${API_URL}/${v}/blob/${encodeURIComponent(key)}`, {\n method: \"DELETE\",\n headers: { Authorization: `Bearer ${TOKEN}` },\n });\n if (!res.ok) throw new Error(`${v} del ${res.status}: ${await res.text()}`);\n}\n\nasync function list(v: Version, prefix: string): Promise {\n const res = await fetch(`${API_URL}/${v}/blob?prefix=${encodeURIComponent(prefix)}`, {\n headers: { Authorization: `Bearer ${TOKEN}` },\n });\n if (!res.ok) throw new Error(`${v} list ${res.status}: ${await res.text()}`);\n return (await res.json()).length;\n}\n\n// Time a single async op in milliseconds (high-res).\nasync function timed(fn: () => Promise): Promise {\n const t0 = performance.now();\n await fn();\n return performance.now() - t0;\n}\n\nexport type Stats = {\n n: number;\n min: number;\n median: number;\n p95: number;\n max: number;\n mean: number;\n};\n\nexport function summarize(samples: number[]): Stats {\n if (samples.length === 0) return { n: 0, min: NaN, median: NaN, p95: NaN, max: NaN, mean: NaN };\n const s = [...samples].sort((a, b) => a - b);\n // Linear-interpolated percentile (numpy default) — kinder to small n.\n const pct = (p: number) => {\n const idx = (s.length - 1) * p;\n const lo = Math.floor(idx), hi = Math.ceil(idx);\n return s[lo] + (s[hi] - s[lo]) * (idx - lo);\n };\n return {\n n: s.length,\n min: s[0],\n median: pct(0.5),\n p95: pct(0.95),\n max: s[s.length - 1],\n mean: s.reduce((a, b) => a + b, 0) / s.length,\n };\n}\n\nconst PREFIX = \"__bench__/\";\nconst SIZES = [\n { label: \"1KB\", bytes: 1024 },\n { label: \"100KB\", bytes: 100 * 1024 },\n { label: \"1MB\", bytes: 1024 * 1024 },\n];\nconst VERSIONS: Version[] = [\"v1\", \"v2\"];\n\nfunction payload(bytes: number): Uint8Array {\n // Pseudo-random-ish but cheap; avoids any provider-side compression freebies.\n const a = new Uint8Array(bytes);\n for (let i = 0; i < bytes; i++) a[i] = (i * 31 + 7) & 0xff;\n return a;\n}\n\nexport type Result = {\n version: Version;\n size: string;\n op: \"set\" | \"get\";\n stats: Stats;\n};\n\nexport async function runBenchmark(iterations = 12) {\n const results: Result[] = [];\n\n for (const size of SIZES) {\n const data = payload(size.bytes);\n // samples[version][op] = number[]\n const samples: Record = {\n v1: { set: [], get: [] },\n v2: { set: [], get: [] },\n };\n\n // Warm-up: one full set+get per version, discarded (kills cold-start bias).\n for (const v of VERSIONS) {\n const k = `${PREFIX}${v}/warmup/${size.label}`;\n await set(v, k, data);\n await get(v, k);\n }\n\n // Measured rounds. Interleave versions within each iteration so any\n // time-of-day drift hits v1 and v2 symmetrically.\n for (let i = 0; i < iterations; i++) {\n for (const v of VERSIONS) {\n const k = `${PREFIX}${v}/${size.label}/${i}`;\n samples[v].set.push(await timed(() => set(v, k, data)));\n samples[v].get.push(await timed(() => get(v, k)));\n }\n }\n\n for (const v of VERSIONS) {\n results.push({ version: v, size: size.label, op: \"set\", stats: summarize(samples[v].set) });\n results.push({ version: v, size: size.label, op: \"get\", stats: summarize(samples[v].get) });\n }\n }\n\n // Cleanup all the keys we created.\n await Promise.allSettled(\n VERSIONS.flatMap((v) => [\n ...SIZES.map((s) => del(v, `${PREFIX}${v}/warmup/${s.label}`)),\n ...SIZES.flatMap((s) =>\n Array.from({ length: iterations }, (_, i) => del(v, `${PREFIX}${v}/${s.label}/${i}`))\n ),\n ]),\n );\n\n return 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Code