stream: readable bimap

[ronag]

Still not complete but another step in the right direction.

[nodejs-github-bot]

Review requested:

• @nodejs/streams

[ronag]

https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1430/

[mscdex]

s/bimap/bitmap/ in commit message

[ronag]

16:59:22 streams/creation.js kind='duplex' n=50000000 *** 12.35 % ±1.40% ±1.88% ±2.48%
16:59:22 streams/creation.js kind='readable' n=50000000 *** -4.51 % ±0.79% ±1.06% ±1.39%
16:59:22 streams/creation.js kind='transform' n=50000000 *** 12.76 % ±1.82% ±2.42% ±3.16%
16:59:22 streams/creation.js kind='writable' n=50000000 -0.64 % ±1.02% ±1.35% ±1.76%
16:59:22 streams/destroy.js kind='duplex' n=1000000 ** 11.80 % ±7.99% ±10.63% ±13.83%
16:59:22 streams/destroy.js kind='readable' n=1000000 2.41 % ±2.57% ±3.43% ±4.47%
16:59:22 streams/destroy.js kind='transform' n=1000000 *** 15.18 % ±6.19% ±8.24% ±10.74%
16:59:22 streams/destroy.js kind='writable' n=1000000 1.10 % ±2.65% ±3.53% ±4.60%
16:59:22 streams/pipe-object-mode.js n=5000000 -2.38 % ±3.85% ±5.14% ±6.70%
16:59:22 streams/pipe.js n=5000000 *** 7.06 % ±3.17% ±4.21% ±5.48%
16:59:22 streams/readable-async-iterator.js sync='no' n=100000 ** 4.96 % ±2.83% ±3.79% ±4.98%
16:59:22 streams/readable-async-iterator.js sync='yes' n=100000 -1.89 % ±4.03% ±5.42% ±7.18%
16:59:22 streams/readable-bigread.js n=1000 1.83 % ±2.07% ±2.75% ±3.59%
16:59:22 streams/readable-bigunevenread.js n=1000 1.53 % ±6.04% ±8.04% ±10.46%
16:59:22 streams/readable-boundaryread.js type='buffer' n=2000 *** 4.27 % ±1.37% ±1.83% ±2.41%
16:59:22 streams/readable-boundaryread.js type='string' n=2000 *** 3.12 % ±1.50% ±1.99% ±2.60%
16:59:22 streams/readable-from.js n=10000000 *** 11.41 % ±2.08% ±2.76% ±3.60%
16:59:22 streams/readable-readall.js n=5000 0.34 % ±0.70% ±0.93% ±1.21%
16:59:22 streams/readable-unevenread.js n=1000 *** 3.39 % ±0.46% ±0.61% ±0.80%
16:59:22 streams/writable-manywrites.js len=1024 callback='no' writev='no' sync='no' n=100000 -0.68 % ±2.02% ±2.69% ±3.53%
16:59:22 streams/writable-manywrites.js len=1024 callback='no' writev='no' sync='yes' n=100000 2.53 % ±3.57% ±4.75% ±6.19%
16:59:22 streams/writable-manywrites.js len=1024 callback='no' writev='yes' sync='no' n=100000 0.28 % ±2.45% ±3.28% ±4.31%
16:59:22 streams/writable-manywrites.js len=1024 callback='no' writev='yes' sync='yes' n=100000 0.67 % ±2.94% ±3.91% ±5.09%
16:59:22 streams/writable-manywrites.js len=1024 callback='yes' writev='no' sync='no' n=100000 -1.20 % ±2.37% ±3.17% ±4.16%
16:59:22 streams/writable-manywrites.js len=1024 callback='yes' writev='no' sync='yes' n=100000 1.15 % ±2.52% ±3.36% ±4.38%
16:59:22 streams/writable-manywrites.js len=1024 callback='yes' writev='yes' sync='no' n=100000 0.01 % ±2.74% ±3.66% ±4.80%
16:59:22 streams/writable-manywrites.js len=1024 callback='yes' writev='yes' sync='yes' n=100000 0.36 % ±2.58% ±3.44% ±4.47%
16:59:22 streams/writable-manywrites.js len=32768 callback='no' writev='no' sync='no' n=100000 -0.28 % ±1.15% ±1.53% ±1.99%
16:59:22 streams/writable-manywrites.js len=32768 callback='no' writev='no' sync='yes' n=100000 1.28 % ±1.92% ±2.56% ±3.35%
16:59:22 streams/writable-manywrites.js len=32768 callback='no' writev='yes' sync='no' n=100000 -0.03 % ±1.44% ±1.92% ±2.50%
16:59:22 streams/writable-manywrites.js len=32768 callback='no' writev='yes' sync='yes' n=100000 1.88 % ±1.92% ±2.57% ±3.37%
16:59:22 streams/writable-manywrites.js len=32768 callback='yes' writev='no' sync='no' n=100000 -0.55 % ±1.28% ±1.72% ±2.24%
16:59:22 streams/writable-manywrites.js len=32768 callback='yes' writev='no' sync='yes' n=100000 -0.48 % ±0.94% ±1.25% ±1.63%
16:59:22 streams/writable-manywrites.js len=32768 callback='yes' writev='yes' sync='no' n=100000 0.65 % ±1.32% ±1.75% ±2.29%
16:59:22 streams/writable-manywrites.js len=32768 callback='yes' writev='yes' sync='yes' n=100000 ** -1.84 % ±1.19% ±1.58% ±2.07%

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/54392/

[benjamingr]

I had a branch that does some of this (which you saw on our video call) but haven't been in office since (it's Sukkot here and we're on holiday). Anyway I'll review mostly should be good/similar.

[benjamingr]

This has more work than my branch so probably let's keep it on this one - there are a few places missing conversion to bitmap (also in the old properties) IIRC I'll check when I'm able

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/54862/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/54872/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/54876/

[tniessen]

Nit: commit message does not adhere to guidelines.

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/54885/

[tniessen]

(Removed the author-ready label due to the commit message. Please amend before merging.)

[Uzlopak]

Should it be streams: readable bitmap or what do you suggest?

[tniessen]

Please refer to the commit message guidelines. The commit message must begin with the subsystem prefix (e.g., stream:) followed by a an imperative verb in lower case.

[Trott]

Should it be something like stream: reduce scope of readable bitmap details? I'm happy to manually land this and amend the commit message, but I want to make sure I get it right and also keep the first line reasonably concise.

[lpinca]

RSLGTM

[Trott]

Rubber-stamp

[Trott]

Landed in 4e70d23