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2019-12-01stream: improve performance for sync write finishesAnna Henningsen
Improve performance and reduce memory usage when a writable stream is written to with the same callback (which is the most common case) and when the write operation finishes synchronously (which is also often the case). confidence improvement accuracy (*) (**) (***) streams/writable-manywrites.js sync='no' n=2000000 0.99 % ±3.20% ±4.28% ±5.61% streams/writable-manywrites.js sync='yes' n=2000000 *** 710.69 % ±19.65% ±26.47% ±35.09% Refs: https://github.com/nodejs/node/issues/18013 Refs: https://github.com/nodejs/node/issues/18367 PR-URL: https://github.com/nodejs/node/pull/30710 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>