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Compare to v18.x and 22.x, in the benchmark for util.inspect,
when obj is Date, as n increases,
the difference in benchmark results gradually grows larger,
possibly also due to the influence of V8 JIT.

n = [2e4]:
                                                          confidence improvement accuracy (*)   (**)  (***)
util/inspect.js option='colors' method='Date' n=20000            ***    -21.01 %       ±1.95% ±2.60% ±3.39%
util/inspect.js option='none' method='Date' n=20000              ***    -24.24 %       ±1.64% ±2.19% ±2.86%
util/inspect.js option='showHidden' method='Date' n=20000        ***    -21.55 %       ±1.32% ±1.76% ±2.30%

n = [4e4]:
                                                          confidence improvement accuracy (*)   (**)  (***)
util/inspect.js option='colors' method='Date' n=40000            ***    -25.63 %       ±1.88% ±2.50% ±3.26%
util/inspect.js option='none' method='Date' n=40000              ***    -29.94 %       ±1.20% ±1.60% ±2.09%
util/inspect.js option='showHidden' method='Date' n=40000        ***    -23.07 %       ±2.99% ±4.01% ±5.30%

n = [6e4]:
                                                          confidence improvement accuracy (*)   (**)  (***)
util/inspect.js option='colors' method='Date' n=60000            ***    -28.01 %       ±1.49% ±1.99% ±2.61%
util/inspect.js option='none' method='Date' n=60000              ***    -32.91 %       ±1.53% ±2.05% ±2.71%
util/inspect.js option='showHidden' method='Date' n=60000        ***    -27.59 %       ±2.30% ±3.07% ±4.01%

n = [8e4]:
                                                          confidence improvement accuracy (*)   (**)  (***)
util/inspect.js option='colors' method='Date' n=80000            ***    -31.34 %       ±1.55% ±2.07% ±2.70%
util/inspect.js option='none' method='Date' n=80000              ***    -32.49 %       ±1.48% ±1.98% ±2.59%
util/inspect.js option='showHidden' method='Date' n=80000        ***    -28.80 %       ±1.76% ±2.34% ±3.05%


n = [1e5]:
                                                           confidence improvement accuracy (*)   (**)  (***)
util/inspect.js option='colors' method='Date' n=100000            ***    -30.87 %       ±2.19% ±2.92% ±3.80%
util/inspect.js option='none' method='Date' n=100000              ***    -33.26 %       ±1.79% ±2.39% ±3.12%
util/inspect.js option='showHidden' method='Date' n=100000        ***    -28.31 %       ±2.07% ±2.75% ±3.58%

n = [12e4]:
                                                           confidence improvement accuracy (*)   (**)  (***)
util/inspect.js option='colors' method='Date' n=120000            ***    -31.74 %       ±1.84% ±2.45% ±3.21%
util/inspect.js option='none' method='Date' n=120000              ***    -32.62 %       ±1.30% ±1.73% ±2.26%
util/inspect.js option='showHidden' method='Date' n=120000        ***    -30.19 %       ±1.89% ±2.51% ±3.27%

n = [14e4]:
                                                           confidence improvement accuracy (*)   (**)  (***)
util/inspect.js option='colors' method='Date' n=140000            ***    -29.44 %       ±1.78% ±2.37% ±3.08%
util/inspect.js option='none' method='Date' n=140000              ***    -34.54 %       ±1.45% ±1.94% ±2.57%
util/inspect.js option='showHidden' method='Date' n=140000        ***    -29.27 %       ±2.12% ±2.83% ±3.68%

Refs: #50571

@nodejs-github-bot nodejs-github-bot added benchmark Issues and PRs related to the benchmark subsystem. util Issues and PRs related to the built-in util module. labels Nov 10, 2023
@H4ad H4ad added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. request-ci Add this label to start a Jenkins CI on a PR. labels Nov 17, 2023
@github-actions github-actions bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Nov 17, 2023
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@aduh95 aduh95 merged commit cdb6519 into nodejs:main Nov 29, 2023
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aduh95 commented Nov 29, 2023

Landed in cdb6519

targos pushed a commit that referenced this pull request Dec 4, 2023
PR-URL: #50651
Refs: #50571
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]>
@targos targos mentioned this pull request Dec 4, 2023
richardlau pushed a commit that referenced this pull request Mar 25, 2024
PR-URL: #50651
Refs: #50571
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]>
@richardlau richardlau mentioned this pull request Mar 25, 2024
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5 participants