stream: speed up reads and iteration over default WHATWG streams

[mcollina]

Skip the size algorithm call when it is the default one, and stop re-running the full ShouldCallPull predicate at per-chunk call sites where its inputs are already established.

readable-async-iterator type=normal: +16.6% (***)
readable-read-buffered: +13.9% to +27.5% (**/***)
pipe-to: +3.7% to +6.0% (15/16 configs significant)

[nodejs-github-bot]

Review requested:

• @nodejs/performance

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/74623/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.25%. Comparing base (7036199) to head (0ff7249).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #64320 +/- ##
=======================================
Coverage 90.25% 90.25% =======================================
Files 741 741 Lines 241207 241249 +42 Branches 45424 45444 +20 =======================================
+ Hits 217696 217734 +38 - Misses 15087 15089 +2 - Partials 8424 8426 +2 

Files with missing lines	Coverage Δ
lib/internal/webstreams/readablestream.js	98.18% <100.00%> (+0.02%)	⬆️

... and 26 files with indirect coverage changes

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• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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[mertcanaltin]

lgtm

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/74650/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/74707/
Benchmark CI: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1884/
Benchmark GHA: https://github.com/nodejs/node/actions/runs/29045757664

[gurgunday]

lgtm

[mcollina]

Results confirmed on Github Action bench:

Benchmark results:

 confidence improvement accuracy (*) (**) (***)
webstreams/creation.js kind='ReadableStream.tee' n=50000 -1.28 % ±10.30% ±13.58% ±17.42%
webstreams/creation.js kind='ReadableStream' n=50000 0.63 % ±11.33% ±14.93% ±19.16%
webstreams/creation.js kind='ReadableStreamBYOBReader' n=50000 -0.98 % ±8.08% ±10.65% ±13.66%
webstreams/creation.js kind='ReadableStreamDefaultReader' n=50000 2.51 % ±9.10% ±11.99% ±15.38%
webstreams/creation.js kind='TransformStream' n=50000 -0.30 % ±10.43% ±13.75% ±17.64%
webstreams/creation.js kind='WritableStream' n=50000 -0.26 % ±11.46% ±15.11% ±19.39%
webstreams/js_transfer.js n=10000 payload='ReadableStream' -0.47 % ±14.78% ±19.48% ±25.00%
webstreams/js_transfer.js n=10000 payload='TransformStream' -0.87 % ±13.60% ±17.92% ±23.00%
webstreams/js_transfer.js n=10000 payload='WritableStream' -1.65 % ±14.04% ±18.51% ±23.75%
webstreams/pipe-to.js highWaterMarkW=1024 highWaterMarkR=1024 n=500000 3.87 % ±9.25% ±12.19% ±15.65%
webstreams/pipe-to.js highWaterMarkW=1024 highWaterMarkR=2048 n=500000 3.26 % ±9.22% ±12.15% ±15.59%
webstreams/pipe-to.js highWaterMarkW=1024 highWaterMarkR=4096 n=500000 2.47 % ±9.20% ±12.12% ±15.56%
webstreams/pipe-to.js highWaterMarkW=1024 highWaterMarkR=512 n=500000 4.39 % ±9.46% ±12.47% ±16.00%
webstreams/pipe-to.js highWaterMarkW=2048 highWaterMarkR=1024 n=500000 3.31 % ±9.23% ±12.17% ±15.62%
webstreams/pipe-to.js highWaterMarkW=2048 highWaterMarkR=2048 n=500000 2.08 % ±9.14% ±12.05% ±15.46%
webstreams/pipe-to.js highWaterMarkW=2048 highWaterMarkR=4096 n=500000 1.99 % ±9.40% ±12.38% ±15.89%
webstreams/pipe-to.js highWaterMarkW=2048 highWaterMarkR=512 n=500000 4.86 % ±9.35% ±12.32% ±15.81%
webstreams/pipe-to.js highWaterMarkW=4096 highWaterMarkR=1024 n=500000 2.29 % ±9.28% ±12.23% ±15.69%
webstreams/pipe-to.js highWaterMarkW=4096 highWaterMarkR=2048 n=500000 5.29 % ±9.43% ±12.43% ±15.95%
webstreams/pipe-to.js highWaterMarkW=4096 highWaterMarkR=4096 n=500000 1.22 % ±9.32% ±12.29% ±15.77%
webstreams/pipe-to.js highWaterMarkW=4096 highWaterMarkR=512 n=500000 3.66 % ±9.33% ±12.30% ±15.78%
webstreams/pipe-to.js highWaterMarkW=512 highWaterMarkR=1024 n=500000 3.05 % ±9.22% ±12.16% ±15.60%
webstreams/pipe-to.js highWaterMarkW=512 highWaterMarkR=2048 n=500000 1.27 % ±9.12% ±12.02% ±15.42%
webstreams/pipe-to.js highWaterMarkW=512 highWaterMarkR=4096 n=500000 3.18 % ±9.24% ±12.18% ±15.62%
webstreams/pipe-to.js highWaterMarkW=512 highWaterMarkR=512 n=500000 3.75 % ±9.41% ±12.40% ±15.92%
webstreams/readable-async-iterator.js type='bytes' n=100000 5.35 % ±10.80% ±14.24% ±18.28%
webstreams/readable-async-iterator.js type='normal' n=100000 *** 18.67 % ±9.03% ±11.90% ±15.27%
webstreams/readable-read-buffered.js bufferSize=1 n=100000 ** 13.13 % ±9.16% ±12.08% ±15.50%
webstreams/readable-read-buffered.js bufferSize=10 n=100000 *** 20.16 % ±8.85% ±11.67% ±14.98%
webstreams/readable-read-buffered.js bufferSize=100 n=100000 *** 25.05 % ±9.02% ±11.89% ±15.26%
webstreams/readable-read-buffered.js bufferSize=1000 n=100000 *** 22.69 % ±9.19% ±12.11% ±15.55%
webstreams/readable-read.js type='byob' n=100000 -0.39 % ±11.56% ±15.24% ±19.56%
webstreams/readable-read.js type='normal' n=100000 -0.10 % ±9.07% ±11.95% ±15.34%

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/74729/

[nodejs-github-bot]

Landed in 9f1ae22