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type { Store } from \"./blob.ts\";\n\nexport type Op = \"set\" | \"get\";\n\n/** Summary of one latency distribution, all in milliseconds. */\nexport interface Stat {\n n: number;\n min: number;\n p50: number;\n p90: number;\n p99: number;\n max: number;\n mean: number;\n}\n\n/** One measured cell: a backend doing one op at one payload size. */\nexport interface Row {\n store: Store;\n size: string; // e.g. \"1KB\", \"100KB\", \"1MB\"\n op: Op;\n stat: Stat;\n}\n\n/** A single benchmark run, the unit we persist to blob storage. */\nexport interface Snapshot {\n id: string; // sortable, blob-key-safe, e.g. \"2026-06-05T21-49-03-123Z\"\n createdAt: string; // ISO timestamp\n iterations: number; // measured samples per cell\n sizes: string[];\n rows: Row[];\n}\n","label",[134],"a6cebc41-8092-4d33-b218-5ec5abad8a6c","store.ts","7e62efb2-6128-11f1-a244-1607ee4eb77e",7,["D",1780696208889],1,"import { type Store, stores } from \"./blob.ts\";\nimport type { Snapshot } from \"./types.ts\";\n\nconst RUNS = \"blob-bench/runs/\"; // one object per run\nconst LATEST = \"blob-bench/latest.json\"; // the most recent run, for instant load\n\n/**\n * Persist a snapshot to BOTH backends under identical keys. That's what makes the\n * \"load this report from R2 vs S3\" demo a fair fight: same bytes, same key, the\n * only difference is which store answers.\n */\nexport async function saveSnapshot(snap: Snapshot): Promise {\n const json = JSON.stringify(snap);\n await Promise.all(\n (Object.keys(stores) as Store[]).flatMap((s) => [\n stores[s].set(`${RUNS}${snap.id}.json`, json),\n stores[s].set(LATEST, json),\n ]),\n );\n}\n\n/** Read the latest snapshot from one backend, returning the data and the read latency. */\nexport async function loadLatest(\n store: Store,\n): Promise<{ snapshot: Snapshot | null; ms: number }> {\n const t0 = performance.now();\n const snapshot = await stores[store].getJSON(LATEST).catch(() => null);\n return { snapshot: snapshot ?? null, ms: performance.now() - t0 };\n}\n\n/** Read one run by id from one backend. */\nexport async function loadRun(store: Store, id: string): Promise {\n return (await stores[store].getJSON(`${RUNS}${id}.json`).catch(() => null)) ?? null;\n}\n\n/** List past run ids (newest first), reading the index from S3. */\nexport async function listRuns(): Promise {\n const items = await stores.s3.list(RUNS).catch(() => []);\n return items\n .map((b) => b.key.slice(RUNS.length).replace(/\\.json$/, \"\"))\n .filter(Boolean)\n .sort()\n .reverse();\n}\n",[144],"afd6cf8b-4771-47f4-be5b-6c5f770daac4","stats.ts","6e196870-6128-11f1-9ef0-1607ee4eb77e",4,["D",1780696169873],"import type { Stat } from \"./types.ts\";\n\n/** Linear-interpolated percentile (numpy default) over an already-sorted array. */\nfunction percentile(sorted: number[], p: number): number {\n const idx = (sorted.length - 1) * p;\n const lo = Math.floor(idx);\n const hi = Math.ceil(idx);\n return sorted[lo] + (sorted[hi] - sorted[lo]) * (idx - lo);\n}\n\nconst round = (n: number) => Math.round(n * 10) / 10;\n\n/** Reduce a list of latency samples (ms) to a Stat. */\nexport function summarize(samples: number[]): Stat {\n if (samples.length === 0) {\n return { n: 0, min: NaN, p50: NaN, p90: NaN, p99: NaN, max: NaN, mean: NaN };\n }\n const s = [...samples].sort((a, b) => a - b);\n return {\n n: s.length,\n min: round(s[0]),\n p50: round(percentile(s, 0.5)),\n p90: round(percentile(s, 0.9)),\n p99: round(percentile(s, 0.99)),\n max: round(s[s.length - 1]),\n mean: round(s.reduce((a, b) => a + b, 0) / s.length),\n };\n}\n",[152],"e1e025b8-2df0-4d90-be69-4b369aea335a","placeholder.ts","5ef24e7a-6128-11f1-be8a-1607ee4eb77e",["D",1780696144459],"// see index.ts\nexport default () => new Response(\"see index.ts\");\n",[159],"8b55f015-c9a0-4519-be52-1c387f7d6aae","blob.ts","6437edb8-6128-11f1-9ef0-1607ee4eb77e",2,["D",1780696153308],"// The two storage backends, side by side. This is the ONLY place we import\n// the std blob clients — everything else talks to `stores`.\n//\n// s3 → std/blob/main.ts → /v2/blob → scoped, S3-backed (new)\n// r2 → std/blob/global.ts → /v1/blob → global, R2-backed (old)\nimport { blob as s3 } from \"https://esm.town/v/std/blob/main.ts\";\nimport { blob as r2 } from \"https://esm.town/v/std/blob/global.ts\";\n\nexport const stores = { s3, r2 } as const;\nexport type Store = keyof typeof stores; // \"s3\" | \"r2\"\n\nexport const STORE_META: Record = {\n s3: { label: \"new\", backend: \"S3 (scoped)\", tone: \"emerald\" },\n r2: { label: \"old\", backend: \"R2 (global)\", tone: \"rose\" },\n};\n",[165],"0f4ff39e-a472-45e6-a4ff-559806d0f1e6","bench.ts","77a58f9a-6128-11f1-9375-1607ee4eb77e",5,["D",1780696185902],"import { type Store, stores } from \"./blob.ts\";\nimport { summarize } from \"./stats.ts\";\nimport type { Op, Row, Snapshot } from \"./types.ts\";\n\nconst SIZES: { label: string; bytes: number }[] = [\n { label: \"1KB\", bytes: 1024 },\n { label: \"100KB\", bytes: 100 * 1024 },\n { label: \"1MB\", bytes: 1024 * 1024 },\n];\nconst STORE_ORDER: Store[] = [\"r2\", \"s3\"];\nconst PROBE_PREFIX = \"blob-bench/_probe/\";\n\nfunction payload(bytes: number): Uint8Array {\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\nasync function timed(fn: () => Promise): Promise {\n const t0 = performance.now();\n await fn();\n return performance.now() - t0;\n}\n\n// One op against one backend. `get` drains the body so we time the full download.\nasync function once(store: Store, op: Op, key: string, body: Uint8Array): Promise {\n const blob = stores[store];\n if (op === \"set\") return timed(() => blob.set(key, body));\n return timed(async () => {\n const res = await blob.get(key);\n await res.arrayBuffer();\n });\n}\n\n/**\n * Run the full matrix: every (store, size, op), `iterations` measured samples each.\n * Backends are interleaved per iteration so any drift hits both symmetrically, and\n * each cell gets one discarded warm-up to remove cold-start bias.\n */\nexport async function runBenchmark(iterations = 12): Promise {\n const createdAt = new Date().toISOString();\n const id = createdAt.replace(/[:.]/g, \"-\");\n const samples = new Map(); // `${store}|${size}|${op}` -> ms[]\n const push = (store: Store, size: string, op: Op, ms: number) => {\n const k = `${store}|${size}|${op}`;\n (samples.get(k) ?? samples.set(k, []).get(k)!).push(ms);\n };\n\n for (const size of SIZES) {\n const data = payload(size.bytes);\n const key = (store: Store, i: number) => `${PROBE_PREFIX}${store}/${size.label}/${i}`;\n\n // warm-up (seeds a value so the first get has something to read), discarded\n for (const store of STORE_ORDER) {\n await once(store, \"set\", key(store, 0), data);\n await once(store, \"get\", key(store, 0), data);\n }\n\n for (let i = 0; i < iterations; i++) {\n for (const store of STORE_ORDER) {\n push(store, size.label, \"set\", await once(store, \"set\", key(store, i), data));\n push(store, size.label, \"get\", await once(store, \"get\", key(store, i), data));\n }\n }\n\n // tidy up the probe keys we wrote\n await Promise.allSettled(\n STORE_ORDER.flatMap((store) =>\n Array.from({ length: iterations }, (_, i) => stores[store].delete(key(store, i)))\n ),\n );\n }\n\n const rows: Row[] = [];\n for (const [k, ms] of samples) {\n const [store, size, op] = k.split(\"|\") as [Store, string, Op];\n rows.push({ store, size, op, stat: summarize(ms) });\n }\n\n return { id, createdAt, iterations, sizes: SIZES.map((s) => s.label), rows };\n}\n",[172],"47570edd-68df-4044-a893-9a1ededbd10f",["D",1780696218316],[28],"pulls","branches","forks","envVars",{"_188":61,"_190":61},"connections",{"_188":61,"_189":61},"count","unfilledCount","emptyCount",{"_42":178,"_32":28,"_30":31,"_136":-5,"_40":41,"_39":14,"_138":26,"_37":217,"_13":61,"_33":34,"_35":36,"_23":26,"_141":-5,"_199":218,"_27":219},{"_42":171,"_32":172,"_30":173,"_136":-5,"_40":41,"_39":174,"_138":26,"_37":214,"_13":61,"_33":34,"_35":176,"_23":26,"_141":-5,"_199":215,"_27":216},{"_42":164,"_32":165,"_30":166,"_136":-5,"_40":41,"_39":167,"_138":24,"_37":211,"_13":61,"_33":34,"_35":169,"_23":26,"_141":-5,"_199":212,"_27":213},{"_42":158,"_32":159,"_30":160,"_136":-5,"_40":41,"_39":148,"_138":26,"_37":208,"_13":61,"_33":34,"_35":162,"_23":26,"_141":-5,"_199":209,"_27":210},{"_42":151,"_32":152,"_30":153,"_136":-5,"_40":41,"_39":154,"_138":24,"_37":205,"_13":61,"_33":34,"_35":156,"_23":26,"_141":-5,"_199":206,"_27":207},{"_42":143,"_32":144,"_30":145,"_136":-5,"_40":41,"_39":146,"_138":26,"_37":202,"_13":148,"_33":34,"_35":149,"_23":26,"_141":-5,"_199":203,"_27":204},{"_42":133,"_32":134,"_30":135,"_136":-5,"_40":41,"_39":137,"_138":26,"_37":198,"_13":61,"_33":34,"_35":140,"_23":26,"_141":-5,"_199":200,"_27":201},["D",1780696161729],"children",[],[134],["D",1780696208889],[],[144],["D",1780696169873],[],[152],["D",1780696144459],[],[159],["D",1780696153308],[],[165],["D",1780696185902],[],[172],["D",1780696218316],[],[28],["D",1780696144434],{"_95":94,"_103":99},{"_95":94,"_96":97,"_98":99,"_18":-5,"_100":101,"_102":24},{"_13":84,"_32":85,"_42":41,"_86":43,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":44,"_93":94},"ctx",{"_77":-5,"_123":257,"_258":259,"_260":261,"_262":26,"_263":26,"_264":26,"_265":24,"_266":-5,"_267":-7,"_268":-7,"_269":61,"_270":26,"_271":26,"_272":-5,"_273":26,"_274":26,"_275":26,"_276":-5},"ENV",{"_228":229,"_230":231,"_232":85,"_233":234,"_235":236,"_237":238,"_239":240,"_241":242,"_243":244,"_245":246,"_247":248,"_249":250,"_251":252,"_253":254,"_255":256},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v8