mirror of
https://github.com/denoland/deno.git
synced 2024-10-29 08:58:01 -04:00
4960b6659c
This PR optimizes `ReadableStream` async iterator ### Benchmarks ```js Deno.bench("Stream - iterator", async () => { const stream = new ReadableStream({ start(controller) { controller.enqueue(new Uint8Array([97])); controller.enqueue(new Uint8Array([97])); controller.close(); }, }); for await (const chunk of stream) {} }); ``` **main** `2 chunks` ``` cpu: 13th Gen Intel(R) Core(TM) i9-13900H runtime: deno 1.36.4 (x86_64-unknown-linux-gnu) benchmark time (avg) iter/s (min … max) p75 p99 p995 ----------------------------------------------------------------------- ----------------------------- Stream - iterator 12.45 µs/iter 80,295.5 (10.5 µs … 281.12 µs) 12.13 µs 26.71 µs 33.63 µs ``` `20 chunks` ``` benchmark time (avg) iter/s (min … max) p75 p99 p995 ----------------------------------------------------------------------- ----------------------------- Stream - iterator 32.99 µs/iter 30,312.2 (28.13 µs … 1.21 ms) 31.8 µs 81.82 µs 179.93 µs ``` --- **this PR** `2 chunks` ``` cpu: 13th Gen Intel(R) Core(TM) i9-13900H runtime: deno 1.36.4 (x86_64-unknown-linux-gnu) benchmark time (avg) iter/s (min … max) p75 p99 p995 ----------------------------------------------------------------------- ----------------------------- Stream - iterator 9.37 µs/iter 106,700.8 (8.35 µs … 730.71 µs) 9.15 µs 13.12 µs 18.17 µs ``` `20 chunks` ``` benchmark time (avg) iter/s (min … max) p75 p99 p995 ----------------------------------------------------------------------- ----------------------------- Stream - iterator 16.59 µs/iter 60,270.0 (12.08 µs … 1.37 ms) 15.06 µs 83.03 µs 123.52 µs ``` |
||
---|---|---|
.. | ||
broadcast_channel | ||
cache | ||
console | ||
crypto | ||
fetch | ||
ffi | ||
fs | ||
http | ||
io | ||
kv | ||
napi | ||
net | ||
node | ||
tls | ||
url | ||
web | ||
webidl | ||
websocket | ||
webstorage |