Matteo Collina c543cfb72b stream: use the ring buffer for pending BYOB pull-into descriptors ...

The byte controller's [[pendingPullIntos]] list was still a plain array
consumed with ArrayPrototypeShift, while every other per-chunk queue in
the WHATWG streams implementation has moved to the Queue ring buffer.
BYOB reads push and shift one descriptor per read, and Array.prototype
shift has real per-call cost even at length 1.

Back the descriptor list with the same lazily materialized Queue used
for the request queues, so constructing a byte stream still allocates
no descriptor storage.

Signed-off-by: Matteo Collina <hello@matteocollina.com>
PR-URL: https://github.com/nodejs/node/pull/64818
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
Reviewed-By: Aviv Keller <me@aviv.sh>
Reviewed-By: Gürgün Dayıoğlu <hey@gurgun.day>

2026-07-31 22:33:39 +00:00

..

creation.js

stream: reduce allocations on WHATWG streams hot paths

2026-06-20 14:19:08 +00:00

js_transfer.js

stream: reduce overhead of transfer

2023-10-12 14:37:41 +00:00

pipe-to.js

benchmark: shorten pipe-to by reducing number of chunks

2023-09-13 19:44:44 +00:00

readable-async-iterator.js

benchmark: add bytes variant to webstreams async-iterator

2026-07-07 09:38:25 +00:00

readable-read-buffered.js

stream: add fast paths for webstreams read and pipeTo

2026-02-19 21:53:46 +00:00

readable-read.js

benchmark: add a benchmark for read() of ReadableStreams

2023-09-19 10:54:32 +00:00

tee.js

stream: use the ring buffer for pending BYOB pull-into descriptors

2026-07-31 22:33:39 +00:00