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assert,util: improve deep object comparison performance#57648

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nodejs-github-bot merged 5 commits intonodejs:mainfrom
BridgeAR:assert-object-performance-improvement
Apr 5, 2025
Merged

assert,util: improve deep object comparison performance#57648
nodejs-github-bot merged 5 commits intonodejs:mainfrom
BridgeAR:assert-object-performance-improvement

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@BridgeAR BridgeAR commented Mar 27, 2025 •
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This improves the performance for almost all objects when comparing
them deeply significantly.

assert/deepequal-buffer.js method='deepEqual' arrayBuffer=0 strict=0 len=100 n=20000                                        -0.64 %       ±0.69%  ±0.92%  ±1.20%
assert/deepequal-buffer.js method='deepEqual' arrayBuffer=0 strict=0 len=1000 n=20000                               ***     -1.27 %       ±0.60%  ±0.80%  ±1.04%
assert/deepequal-buffer.js method='deepEqual' arrayBuffer=0 strict=1 len=100 n=20000                                ***      3.67 %       ±0.56%  ±0.74%  ±0.97%
assert/deepequal-buffer.js method='deepEqual' arrayBuffer=0 strict=1 len=1000 n=20000                               ***      3.46 %       ±0.82%  ±1.09%  ±1.42%
assert/deepequal-buffer.js method='deepEqual' arrayBuffer=1 strict=0 len=100 n=20000                                        -0.54 %       ±0.93%  ±1.24%  ±1.62%
assert/deepequal-buffer.js method='deepEqual' arrayBuffer=1 strict=0 len=1000 n=20000                                       -0.61 %       ±0.92%  ±1.23%  ±1.61%
assert/deepequal-buffer.js method='deepEqual' arrayBuffer=1 strict=1 len=100 n=20000                                ***      5.76 %       ±1.12%  ±1.49%  ±1.94%
assert/deepequal-buffer.js method='deepEqual' arrayBuffer=1 strict=1 len=1000 n=20000                               ***      5.59 %       ±0.70%  ±0.93%  ±1.21%
assert/deepequal-buffer.js method='notDeepEqual' arrayBuffer=0 strict=1 len=100 n=20000                             ***      4.45 %       ±1.03%  ±1.38%  ±1.79%
assert/deepequal-buffer.js method='notDeepEqual' arrayBuffer=0 strict=1 len=1000 n=20000                            ***      5.28 %       ±1.12%  ±1.50%  ±1.97%
assert/deepequal-buffer.js method='notDeepEqual' arrayBuffer=1 strict=1 len=100 n=20000                             ***      6.42 %       ±1.30%  ±1.74%  ±2.26%
assert/deepequal-buffer.js method='notDeepEqual' arrayBuffer=1 strict=1 len=1000 n=20000                            ***      5.74 %       ±0.78%  ±1.04%  ±1.35%
assert/deepequal-buffer.js method='partial' arrayBuffer=0 strict=1 len=100 n=20000                                   **      1.13 %       ±0.67%  ±0.89%  ±1.15%
assert/deepequal-buffer.js method='partial' arrayBuffer=0 strict=1 len=1000 n=20000                                         -0.53 %       ±0.60%  ±0.80%  ±1.04%
assert/deepequal-buffer.js method='partial' arrayBuffer=1 strict=1 len=100 n=20000                                  ***     -2.42 %       ±0.76%  ±1.01%  ±1.31%
assert/deepequal-buffer.js method='partial' arrayBuffer=1 strict=1 len=1000 n=20000                                  **     -0.83 %       ±0.52%  ±0.70%  ±0.91%
assert/deepequal-buffer.js method='unequal_length' arrayBuffer=0 strict=1 len=100 n=20000                           ***      3.22 %       ±1.49%  ±1.98%  ±2.59%
assert/deepequal-buffer.js method='unequal_length' arrayBuffer=0 strict=1 len=1000 n=20000                          ***      2.15 %       ±0.93%  ±1.24%  ±1.61%
assert/deepequal-buffer.js method='unequal_length' arrayBuffer=1 strict=1 len=100 n=20000                           ***      2.98 %       ±0.97%  ±1.29%  ±1.68%
assert/deepequal-buffer.js method='unequal_length' arrayBuffer=1 strict=1 len=1000 n=20000                          ***      5.88 %       ±0.80%  ±1.06%  ±1.38%
assert/deepequal-map.js method='deepEqual_mixed' strict=0 len=500 n=2000                                            ***     43.30 %       ±1.28%  ±1.72%  ±2.27%
assert/deepequal-map.js method='deepEqual_mixed' strict=1 len=500 n=2000                                            ***     73.10 %       ±0.87%  ±1.16%  ±1.53%
assert/deepequal-map.js method='deepEqual_objectOnly' strict=0 len=500 n=2000                                       ***     77.15 %       ±0.63%  ±0.85%  ±1.11%
assert/deepequal-map.js method='deepEqual_objectOnly' strict=1 len=500 n=2000                                       ***    101.62 %       ±1.21%  ±1.63%  ±2.16%
assert/deepequal-map.js method='deepEqual_primitiveOnly' strict=0 len=500 n=2000                                    ***     15.62 %       ±1.29%  ±1.72%  ±2.24%
assert/deepequal-map.js method='deepEqual_primitiveOnly' strict=1 len=500 n=2000                                    ***     14.63 %       ±1.83%  ±2.44%  ±3.20%
assert/deepequal-map.js method='notDeepEqual_mixed' strict=0 len=500 n=2000                                         ***      4.34 %       ±2.33%  ±3.10%  ±4.05%
assert/deepequal-map.js method='notDeepEqual_mixed' strict=1 len=500 n=2000                                                  1.24 %       ±2.89%  ±3.86%  ±5.04%
assert/deepequal-map.js method='notDeepEqual_objectOnly' strict=0 len=500 n=2000                                    ***     43.55 %       ±0.47%  ±0.63%  ±0.82%
assert/deepequal-map.js method='notDeepEqual_objectOnly' strict=1 len=500 n=2000                                    ***     68.34 %       ±0.46%  ±0.61%  ±0.80%
assert/deepequal-map.js method='notDeepEqual_primitiveOnly' strict=0 len=500 n=2000                                 ***     13.75 %       ±2.22%  ±2.96%  ±3.85%
assert/deepequal-map.js method='notDeepEqual_primitiveOnly' strict=1 len=500 n=2000                                 ***     13.56 %       ±2.29%  ±3.06%  ±3.99%
assert/deepequal-object.js method='deepEqual' size=10000 n=50                                                       ***     77.16 %       ±0.94%  ±1.26%  ±1.66%
assert/deepequal-object.js method='deepStrictEqual' size=10000 n=50                                                 ***     59.75 %       ±0.85%  ±1.14%  ±1.49%
assert/deepequal-object.js method='notDeepEqual' size=10000 n=50                                                    ***     13.82 %       ±5.52%  ±7.43%  ±9.84%
assert/deepequal-object.js method='notDeepStrictEqual' size=10000 n=50                                              ***     15.59 %       ±2.85%  ±3.80%  ±4.94%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='array'                  ***      9.19 %       ±0.52%  ±0.69%  ±0.90%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='boolean'                ***      6.78 %       ±1.63%  ±2.16%  ±2.82%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='circular'               ***     30.83 %       ±1.73%  ±2.31%  ±3.02%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='date'                           -0.24 %       ±1.22%  ±1.63%  ±2.12%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='empty_object'           ***     -7.41 %       ±2.73%  ±3.64%  ±4.75%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='number'                  **      3.24 %       ±2.15%  ±2.86%  ±3.74%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='object'                 ***     43.14 %       ±1.32%  ±1.77%  ±2.33%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='regexp'                   *     -1.69 %       ±1.34%  ±1.79%  ±2.33%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='set_object'               *     -0.75 %       ±0.66%  ±0.87%  ±1.14%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='set_simple'                     -0.28 %       ±1.08%  ±1.45%  ±1.90%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=0 n=100000 primitive='string'                 ***      3.41 %       ±1.93%  ±2.57%  ±3.34%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='array'                  ***     27.25 %       ±0.94%  ±1.25%  ±1.63%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='boolean'                ***      7.07 %       ±2.00%  ±2.67%  ±3.48%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='circular'               ***     31.68 %       ±0.65%  ±0.87%  ±1.13%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='date'                   ***     13.20 %       ±0.72%  ±0.96%  ±1.25%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='empty_object'           ***     15.22 %       ±1.11%  ±1.48%  ±1.94%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='number'                   *      2.07 %       ±1.72%  ±2.28%  ±2.97%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='object'                 ***     39.89 %       ±1.32%  ±1.75%  ±2.28%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='regexp'                 ***     15.33 %       ±1.00%  ±1.34%  ±1.75%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='set_object'             ***     13.76 %       ±1.03%  ±1.38%  ±1.81%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='set_simple'             ***     11.82 %       ±0.97%  ±1.30%  ±1.71%
assert/deepequal-prims-and-objs-big-loop.js method='deepEqual' strict=1 n=100000 primitive='string'                 ***      4.80 %       ±1.61%  ±2.15%  ±2.79%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='array'               ***     24.14 %       ±0.59%  ±0.79%  ±1.03%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='boolean'             ***      3.88 %       ±1.45%  ±1.92%  ±2.51%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='circular'            ***     45.59 %       ±0.96%  ±1.28%  ±1.68%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='date'                ***     20.66 %       ±1.95%  ±2.60%  ±3.41%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='empty_object'        ***     36.60 %       ±1.89%  ±2.51%  ±3.27%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='number'                *     -2.15 %       ±1.65%  ±2.19%  ±2.85%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='object'              ***    -33.17 %       ±1.00%  ±1.33%  ±1.74%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='regexp'              ***     17.37 %       ±1.66%  ±2.22%  ±2.90%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='set_object'          ***     15.22 %       ±0.80%  ±1.07%  ±1.39%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='set_simple'          ***     12.18 %       ±0.89%  ±1.19%  ±1.56%
assert/deepequal-prims-and-objs-big-loop.js method='notDeepEqual' strict=1 n=100000 primitive='string'                       0.60 %       ±1.48%  ±1.97%  ±2.57%
assert/deepequal-set.js method='deepEqual_mixed' order='insert' strict=0 len=120 n=1000                             ***     28.43 %       ±0.71%  ±0.95%  ±1.23%
assert/deepequal-set.js method='deepEqual_mixed' order='insert' strict=0 len=2 n=1000                               ***     35.04 %       ±2.00%  ±2.66%  ±3.47%
assert/deepequal-set.js method='deepEqual_mixed' order='insert' strict=1 len=120 n=1000                             ***     45.14 %       ±1.41%  ±1.88%  ±2.46%
assert/deepequal-set.js method='deepEqual_mixed' order='insert' strict=1 len=2 n=1000                               ***     35.68 %       ±1.72%  ±2.29%  ±2.98%
assert/deepequal-set.js method='deepEqual_mixed' order='reversed' strict=0 len=120 n=1000                           ***   1507.82 %       ±6.76%  ±9.11% ±12.10%
assert/deepequal-set.js method='deepEqual_mixed' order='reversed' strict=0 len=2 n=1000                             ***     39.52 %       ±2.26%  ±3.01%  ±3.91%
assert/deepequal-set.js method='deepEqual_mixed' order='reversed' strict=1 len=120 n=1000                           ***   1904.21 %       ±6.66%  ±8.97% ±11.91%
assert/deepequal-set.js method='deepEqual_mixed' order='reversed' strict=1 len=2 n=1000                             ***     35.28 %       ±2.32%  ±3.09%  ±4.04%
assert/deepequal-set.js method='deepEqual_objectOnly' order='insert' strict=0 len=120 n=1000                        ***     44.43 %       ±1.60%  ±2.15%  ±2.84%
assert/deepequal-set.js method='deepEqual_objectOnly' order='insert' strict=0 len=2 n=1000                          ***     36.89 %       ±1.54%  ±2.05%  ±2.67%
assert/deepequal-set.js method='deepEqual_objectOnly' order='insert' strict=1 len=120 n=1000                        ***     70.90 %       ±0.76%  ±1.02%  ±1.33%
assert/deepequal-set.js method='deepEqual_objectOnly' order='insert' strict=1 len=2 n=1000                          ***     34.78 %       ±1.79%  ±2.38%  ±3.11%
assert/deepequal-set.js method='deepEqual_objectOnly' order='random' strict=1 len=120 n=1000                        ***     37.27 %       ±3.09%  ±4.11%  ±5.37%
assert/deepequal-set.js method='deepEqual_objectOnly' order='random' strict=1 len=2 n=1000                          ***     35.59 %       ±3.02%  ±4.03%  ±5.25%
assert/deepequal-set.js method='deepEqual_objectOnly' order='reversed' strict=0 len=120 n=1000                      ***   3983.35 %      ±13.63% ±18.37% ±24.38%
assert/deepequal-set.js method='deepEqual_objectOnly' order='reversed' strict=0 len=2 n=1000                        ***     30.14 %       ±1.19%  ±1.58%  ±2.06%
assert/deepequal-set.js method='deepEqual_objectOnly' order='reversed' strict=1 len=120 n=1000                      ***   5327.60 %      ±24.09% ±32.47% ±43.11%
assert/deepequal-set.js method='deepEqual_objectOnly' order='reversed' strict=1 len=2 n=1000                        ***     30.62 %       ±1.56%  ±2.08%  ±2.71%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='insert' strict=0 len=120 n=1000                       *     -1.47 %       ±1.10%  ±1.47%  ±1.93%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='insert' strict=0 len=2 n=1000                       ***      5.18 %       ±1.93%  ±2.57%  ±3.35%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='insert' strict=1 len=120 n=1000                             -0.39 %       ±1.43%  ±1.91%  ±2.49%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='insert' strict=1 len=2 n=1000                       ***      5.66 %       ±2.05%  ±2.75%  ±3.61%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='random' strict=1 len=120 n=1000                       *     -1.68 %       ±1.29%  ±1.72%  ±2.25%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='random' strict=1 len=2 n=1000                       ***      5.46 %       ±1.79%  ±2.39%  ±3.12%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='reversed' strict=0 len=120 n=1000                           -1.42 %       ±1.73%  ±2.31%  ±3.04%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='reversed' strict=0 len=2 n=1000                      **      3.26 %       ±2.04%  ±2.72%  ±3.55%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='reversed' strict=1 len=120 n=1000                            0.13 %       ±1.32%  ±1.76%  ±2.30%
assert/deepequal-set.js method='deepEqual_primitiveOnly' order='reversed' strict=1 len=2 n=1000                     ***      6.23 %       ±2.12%  ±2.83%  ±3.70%
assert/deepequal-set.js method='notDeepEqual_mixed' order='insert' strict=0 len=120 n=1000                          ***      5.15 %       ±1.54%  ±2.05%  ±2.66%
assert/deepequal-set.js method='notDeepEqual_mixed' order='insert' strict=0 len=2 n=1000                            ***      3.65 %       ±2.09%  ±2.78%  ±3.62%
assert/deepequal-set.js method='notDeepEqual_mixed' order='insert' strict=1 len=120 n=1000                           **      3.92 %       ±2.59%  ±3.46%  ±4.53%
assert/deepequal-set.js method='notDeepEqual_mixed' order='insert' strict=1 len=2 n=1000                            ***      6.55 %       ±1.58%  ±2.11%  ±2.74%
assert/deepequal-set.js method='notDeepEqual_mixed' order='random' strict=1 len=120 n=1000                                  17.74 %      ±18.15% ±24.16% ±31.45%
assert/deepequal-set.js method='notDeepEqual_mixed' order='random' strict=1 len=2 n=1000                                    -2.43 %       ±5.54%  ±7.44%  ±9.81%
assert/deepequal-set.js method='notDeepEqual_mixed' order='reversed' strict=0 len=120 n=1000                        ***      6.41 %       ±1.92%  ±2.56%  ±3.34%
assert/deepequal-set.js method='notDeepEqual_mixed' order='reversed' strict=0 len=2 n=1000                          ***    -11.30 %       ±1.24%  ±1.65%  ±2.15%
assert/deepequal-set.js method='notDeepEqual_mixed' order='reversed' strict=1 len=120 n=1000                        ***      4.16 %       ±2.15%  ±2.86%  ±3.73%
assert/deepequal-set.js method='notDeepEqual_mixed' order='reversed' strict=1 len=2 n=1000                          ***    -14.19 %       ±1.58%  ±2.11%  ±2.76%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='insert' strict=0 len=120 n=1000                     ***     26.18 %       ±0.91%  ±1.21%  ±1.58%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='insert' strict=0 len=2 n=1000                       ***     33.08 %       ±1.51%  ±2.00%  ±2.61%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='insert' strict=1 len=120 n=1000                     ***     48.18 %       ±0.80%  ±1.08%  ±1.42%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='insert' strict=1 len=2 n=1000                       ***     32.15 %       ±1.65%  ±2.20%  ±2.87%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='reversed' strict=0 len=120 n=1000                   ***   3157.41 %      ±22.60% ±30.46% ±40.44%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='reversed' strict=0 len=2 n=1000                     ***     62.08 %       ±1.99%  ±2.65%  ±3.46%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='reversed' strict=1 len=120 n=1000                   ***   4008.03 %      ±10.50% ±14.15% ±18.79%
assert/deepequal-set.js method='notDeepEqual_objectOnly' order='reversed' strict=1 len=2 n=1000                     ***     57.50 %       ±2.20%  ±2.95%  ±3.86%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='insert' strict=0 len=120 n=1000                           0.54 %       ±1.11%  ±1.48%  ±1.93%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='insert' strict=0 len=2 n=1000                     **      2.55 %       ±1.84%  ±2.45%  ±3.20%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='insert' strict=1 len=120 n=1000                    *     -2.46 %       ±2.00%  ±2.67%  ±3.49%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='insert' strict=1 len=2 n=1000                    ***      3.48 %       ±1.75%  ±2.33%  ±3.04%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='random' strict=1 len=120 n=1000                           6.57 %      ±18.39% ±24.47% ±31.85%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='random' strict=1 len=2 n=1000                    ***      6.19 %       ±1.98%  ±2.63%  ±3.43%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='reversed' strict=0 len=120 n=1000                ***     -9.69 %       ±1.66%  ±2.21%  ±2.88%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='reversed' strict=0 len=2 n=1000                  ***      4.27 %       ±1.58%  ±2.10%  ±2.73%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='reversed' strict=1 len=120 n=1000                ***     -7.19 %       ±2.05%  ±2.74%  ±3.58%
assert/deepequal-set.js method='notDeepEqual_primitiveOnly' order='reversed' strict=1 len=2 n=1000                  ***      7.20 %       ±2.10%  ±2.80%  ±3.65%
assert/deepequal-simple-array-and-set.js method='deepEqual_Array' strict=1 len=10000 n=1000                         ***     68.73 %       ±3.54%  ±4.77%  ±6.33%
assert/deepequal-simple-array-and-set.js method='deepEqual_Set' strict=1 len=10000 n=1000                                   -5.87 %       ±7.67% ±10.22% ±13.36%
assert/deepequal-simple-array-and-set.js method='deepEqual_sparseArray' strict=1 len=10000 n=1000                   ***     14.35 %       ±0.43%  ±0.58%  ±0.76%
assert/deepequal-simple-array-and-set.js method='notDeepEqual_Array' strict=1 len=10000 n=1000                      ***     69.65 %       ±3.73%  ±5.02%  ±6.66%
assert/deepequal-simple-array-and-set.js method='notDeepEqual_Set' strict=1 len=10000 n=1000                                 0.46 %       ±1.21%  ±1.60%  ±2.09%
assert/deepequal-simple-array-and-set.js method='notDeepEqual_sparseArray' strict=1 len=10000 n=1000                ***     13.56 %       ±0.62%  ±0.84%  ±1.10%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=0 n=25000 type='Float32Array'                     ***     -6.23 %       ±1.50%  ±1.99%  ±2.59%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=0 n=25000 type='Int8Array'                                -0.42 %       ±0.59%  ±0.78%  ±1.02%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=0 n=25000 type='Uint32Array'                              -0.50 %       ±1.00%  ±1.33%  ±1.73%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=0 n=25000 type='Uint8Array'                               -0.63 %       ±0.98%  ±1.31%  ±1.70%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=1 n=25000 type='Float32Array'                     ***      4.13 %       ±0.79%  ±1.05%  ±1.38%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=1 n=25000 type='Int8Array'                        ***      4.36 %       ±0.91%  ±1.22%  ±1.58%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=1 n=25000 type='Uint32Array'                      ***      3.55 %       ±1.08%  ±1.44%  ±1.87%
assert/deepequal-typedarrays.js len=100 method='deepEqual' strict=1 n=25000 type='Uint8Array'                       ***      3.45 %       ±0.93%  ±1.24%  ±1.61%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=0 n=25000 type='Float32Array'                  ***     -2.72 %       ±1.28%  ±1.70%  ±2.21%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=0 n=25000 type='Int8Array'                       *     -1.20 %       ±1.14%  ±1.52%  ±1.98%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=0 n=25000 type='Uint32Array'                    **     -2.16 %       ±1.36%  ±1.81%  ±2.36%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=0 n=25000 type='Uint8Array'                     **     -1.73 %       ±1.27%  ±1.70%  ±2.22%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=1 n=25000 type='Float32Array'                  ***      3.22 %       ±0.98%  ±1.31%  ±1.71%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=1 n=25000 type='Int8Array'                     ***      3.30 %       ±1.27%  ±1.70%  ±2.21%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=1 n=25000 type='Uint32Array'                   ***      2.66 %       ±1.09%  ±1.45%  ±1.89%
assert/deepequal-typedarrays.js len=100 method='notDeepEqual' strict=1 n=25000 type='Uint8Array'                    ***      4.22 %       ±1.17%  ±1.56%  ±2.03%
assert/deepequal-typedarrays.js len=5000 method='deepEqual' strict=0 n=25000 type='Int8Array'                        **     -0.93 %       ±0.57%  ±0.76%  ±0.99%
assert/deepequal-typedarrays.js len=5000 method='deepEqual' strict=0 n=25000 type='Uint32Array'                       *     -0.91 %       ±0.82%  ±1.10%  ±1.43%
assert/deepequal-typedarrays.js len=5000 method='deepEqual' strict=0 n=25000 type='Uint8Array'                      ***     -1.30 %       ±0.72%  ±0.96%  ±1.24%
assert/deepequal-typedarrays.js len=5000 method='deepEqual' strict=1 n=25000 type='Float32Array'                    ***      2.03 %       ±0.66%  ±0.89%  ±1.17%
assert/deepequal-typedarrays.js len=5000 method='deepEqual' strict=1 n=25000 type='Int8Array'                       ***      3.20 %       ±0.90%  ±1.20%  ±1.57%
assert/deepequal-typedarrays.js len=5000 method='deepEqual' strict=1 n=25000 type='Uint32Array'                     ***      2.66 %       ±0.42%  ±0.56%  ±0.73%
assert/deepequal-typedarrays.js len=5000 method='deepEqual' strict=1 n=25000 type='Uint8Array'                      ***      4.24 %       ±1.25%  ±1.68%  ±2.22%
assert/deepequal-typedarrays.js len=5000 method='notDeepEqual' strict=0 n=25000 type='Int8Array'                    ***     -2.16 %       ±0.93%  ±1.24%  ±1.62%
assert/deepequal-typedarrays.js len=5000 method='notDeepEqual' strict=0 n=25000 type='Uint32Array'                  ***     -2.39 %       ±0.60%  ±0.80%  ±1.04%
assert/deepequal-typedarrays.js len=5000 method='notDeepEqual' strict=0 n=25000 type='Uint8Array'                   ***     -1.42 %       ±0.79%  ±1.06%  ±1.38%
assert/deepequal-typedarrays.js len=5000 method='notDeepEqual' strict=1 n=25000 type='Float32Array'                 ***      1.62 %       ±0.74%  ±0.99%  ±1.29%
assert/deepequal-typedarrays.js len=5000 method='notDeepEqual' strict=1 n=25000 type='Int8Array'                    ***      2.96 %       ±1.14%  ±1.52%  ±1.99%
assert/deepequal-typedarrays.js len=5000 method='notDeepEqual' strict=1 n=25000 type='Uint32Array'                    *      1.15 %       ±0.91%  ±1.22%  ±1.60%
assert/deepequal-typedarrays.js len=5000 method='notDeepEqual' strict=1 n=25000 type='Uint8Array'                   ***      3.06 %       ±1.05%  ±1.39%  ±1.81%
assert/partial-deep-equal.js datasetName='array' extraProps=0 size=500 n=125                                        ***     29.54 %       ±3.92%  ±5.21%  ±6.78%
assert/partial-deep-equal.js datasetName='array' extraProps=1 size=500 n=125                                        ***     31.72 %       ±5.40%  ±7.24%  ±9.54%
assert/partial-deep-equal.js datasetName='arrayBuffers' extraProps=0 size=500 n=125                                         -0.65 %       ±0.69%  ±0.92%  ±1.20%
assert/partial-deep-equal.js datasetName='arrayBuffers' extraProps=1 size=500 n=125                                         -0.27 %       ±0.72%  ±0.96%  ±1.26%
assert/partial-deep-equal.js datasetName='circularRefs' extraProps=0 size=500 n=125                                 ***     11.14 %       ±0.43%  ±0.57%  ±0.74%
assert/partial-deep-equal.js datasetName='circularRefs' extraProps=1 size=500 n=125                                 ***     11.71 %       ±0.97%  ±1.30%  ±1.71%
assert/partial-deep-equal.js datasetName='dataViewArrayBuffers' extraProps=0 size=500 n=125                                 -0.39 %       ±0.93%  ±1.24%  ±1.61%
assert/partial-deep-equal.js datasetName='dataViewArrayBuffers' extraProps=1 size=500 n=125                                  0.54 %       ±0.96%  ±1.29%  ±1.69%
assert/partial-deep-equal.js datasetName='maps' extraProps=0 size=500 n=125                                         ***     64.71 %       ±2.00%  ±2.69%  ±3.56%
assert/partial-deep-equal.js datasetName='maps' extraProps=1 size=500 n=125                                         ***     68.27 %       ±1.01%  ±1.35%  ±1.75%
assert/partial-deep-equal.js datasetName='objects' extraProps=0 size=500 n=125                                      ***     63.01 %       ±0.78%  ±1.05%  ±1.37%
assert/partial-deep-equal.js datasetName='objects' extraProps=1 size=500 n=125                                      ***     64.22 %       ±0.89%  ±1.19%  ±1.55%
assert/partial-deep-equal.js datasetName='sets' extraProps=0 size=500 n=125                                         ***     62.31 %       ±0.74%  ±0.98%  ±1.28%
assert/partial-deep-equal.js datasetName='sets' extraProps=1 size=500 n=125                                         ***     70.55 %       ±0.88%  ±1.17%  ±1.52%
assert/partial-deep-equal.js datasetName='setsWithObjects' extraProps=0 size=500 n=125                              ***     57.70 %       ±0.96%  ±1.28%  ±1.68%
assert/partial-deep-equal.js datasetName='setsWithObjects' extraProps=1 size=500 n=125                              ***     52.33 %       ±1.02%  ±1.37%  ±1.79%
assert/partial-deep-equal.js datasetName='typedArrays' extraProps=0 size=500 n=125                                  ***      3.51 %       ±1.26%  ±1.69%  ±2.22%
assert/partial-deep-equal.js datasetName='typedArrays' extraProps=1 size=500 n=125                                  ***      2.92 %       ±0.82%  ±1.10%  ±1.43%

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Review requested:

  • @nodejs/performance

@nodejs-github-bot nodejs-github-bot added assert Issues and PRs related to the assert subsystem. needs-ci PRs that need a full CI run. util Issues and PRs related to the built-in util module. labels Mar 27, 2025
ljharb
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looks good, just some thoughts

@BridgeAR BridgeAR force-pushed the assert-object-performance-improvement branch from 717c5ac to c9b2d34 Compare April 2, 2025 23:59
@BridgeAR BridgeAR marked this pull request as ready for review April 2, 2025 23:59
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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.27%. Comparing base (9aa57bf) to head (75d8fbb).
Report is 4 commits behind head on main.

Additional details and impacted files 
@@            Coverage Diff             @@
##             main   #57648      +/-   ##
==========================================
+ Coverage   90.24%   90.27%   +0.02%     
==========================================
  Files         630      630              
  Lines      184990   185129     +139     
  Branches    36216    36259      +43     
==========================================
+ Hits       166948   167116     +168     
+ Misses      11003    10984      -19     
+ Partials     7039     7029      -10
Files with missing lines Coverage Δ
lib/internal/util/comparisons.js 100.00% <100.00%> (+0.36%) ⬆️

... and 22 files with indirect coverage changes

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@BridgeAR BridgeAR requested review from aduh95, ljharb and targos April 3, 2025 12:41
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Benchmark CI https://ci.nodejs.org/job/benchmark-node-micro-benchmarks/1690

@BridgeAR BridgeAR added the request-ci Add this label to start a Jenkins CI on a PR. label Apr 4, 2025
@github-actions github-actions bot added request-ci-failed An error occurred while starting CI via request-ci label, and manual interventon is needed. and removed request-ci Add this label to start a Jenkins CI on a PR. labels Apr 4, 2025
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Failed to start CI
   ⚠  Commits were pushed since the last approving review:
   ⚠  - assert,util: improve deep object comparison performance
   ⚠  - assert,util: improve deep equal comparison performance
   ⚠  - assert,util: improve (partial) deep equal comparison performance
   ⚠  - test: add assert.deepStrictEqual test cases to cover more cases
   ✘  Refusing to run CI on potentially unsafe PR
https://github.com/nodejs/node/actions/runs/14264748421

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Broadly speaking, a lot of these optimizations are very non-obvious, and could use some commentary. That said, the reasons why become clearer on multiple reads, so I'm not going to block on that.

The one about getting the descriptor instead of using ObjectPropertyIsEnumerable still stands though.

BridgeAR added 4 commits April 4, 2025 19:48
@BridgeAR
assert,util: improve deep object comparison performance
c74410b 
This improves the performance for almost all objects when comparing
them deeply.
@BridgeAR
assert,util: improve deep equal comparison performance
5dc2a5d 
This allows the compiler to inline parts of the code in a way that
especially primitives in arrays can be compared faster.
@BridgeAR
assert,util: improve (partial) deep equal comparison performance
43ea921 
The circular check is now done lazily. That way only users that
actually make use of such structures have to do the calculation
overhead. It is an initial overhead the very first time it's run
to detect the circular structure, while every following call uses
the check for circular structures by default. This improves the
performance for object comparison significantly.

On top of that, this includes an optimised algorithm for sets and
maps that contain objects as keys. The tracking is now done in an
array and the array size is not changed when elements at the start
or at the end of the array is detected. The order of the elements
matter, so a reversed key order is now a magnitude faster. Insert
sort comparison is also signficantly faster, random order is a tad
faster.
@BridgeAR
test: add assert.deepStrictEqual test cases to cover more cases
2cf9cfc
aduh95
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@BridgeAR BridgeAR force-pushed the assert-object-performance-improvement branch from ccea4ca to 75d8fbb Compare April 4, 2025 18:08
@BridgeAR BridgeAR 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. and removed request-ci-failed An error occurred while starting CI via request-ci label, and manual interventon is needed. labels Apr 4, 2025
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CI: https://ci.nodejs.org/job/node-test-pull-request/66033/

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CI: https://ci.nodejs.org/job/node-test-pull-request/66037/

@BridgeAR BridgeAR added commit-queue Add this label to land a pull request using GitHub Actions. commit-queue-squash Add this label to instruct the Commit Queue to squash all the PR commits into the first one. labels Apr 5, 2025
@nodejs-github-bot nodejs-github-bot removed the commit-queue Add this label to land a pull request using GitHub Actions. label Apr 5, 2025
@nodejs-github-bot nodejs-github-bot merged commit e739559 into nodejs:main Apr 5, 2025
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Landed in e739559

JonasBa pushed a commit to JonasBa/node that referenced this pull request Apr 11, 2025
@BridgeAR @JonasBa
assert,util: improve deep object comparison performance
aa22300 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: nodejs#57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
RafaelGSS pushed a commit that referenced this pull request May 1, 2025
@BridgeAR @RafaelGSS
assert,util: improve deep object comparison performance
ee95d40 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
@RafaelGSS RafaelGSS mentioned this pull request May 1, 2025
Merged
RafaelGSS pushed a commit that referenced this pull request May 2, 2025
@BridgeAR @RafaelGSS
assert,util: improve deep object comparison performance
f4572f0 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
aduh95 pushed a commit that referenced this pull request May 6, 2025
@BridgeAR @aduh95
assert,util: improve deep object comparison performance
6cb5dac 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
RafaelGSS pushed a commit that referenced this pull request May 14, 2025
@BridgeAR @RafaelGSS
assert,util: improve deep object comparison performance
61ce1c7 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
aduh95 pushed a commit that referenced this pull request May 16, 2025
@BridgeAR @aduh95
assert,util: improve deep object comparison performance
83ce37e 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
aduh95 pushed a commit that referenced this pull request May 17, 2025
@BridgeAR @aduh95
assert,util: improve deep object comparison performance
a9caf15 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
aduh95 pushed a commit that referenced this pull request May 17, 2025
@BridgeAR @aduh95
assert,util: improve deep object comparison performance
61f0792 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
aduh95 pushed a commit that referenced this pull request May 17, 2025
@BridgeAR @aduh95
assert,util: improve deep object comparison performance
5c77274 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
aduh95 pushed a commit that referenced this pull request May 18, 2025
@BridgeAR @aduh95
assert,util: improve deep object comparison performance
0da6154 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
@github-actions github-actions bot mentioned this pull request May 19, 2025
Merged
aduh95 pushed a commit that referenced this pull request May 19, 2025
@BridgeAR @aduh95
assert,util: improve deep object comparison performance
1ded5f2 
This improves the performance for almost all objects when comparing
them deeply.

PR-URL: #57648
Reviewed-By: Jordan Harband <ljharb@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
@ghost ghost mentioned this pull request Jun 8, 2025
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@bengl bengl bengl approved these changes

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