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Json-Performance

Performance profiling of JSON libraries (Compiled and run on Darwin 23.6.0 using the AppleClang 15.0.0.15000309 compiler).

Latest Results: (Jan 20, 2025)

Using the following commits:

| Jsonifier: 431c91e
| Glaze: 37c19d1
| Simdjson: 5642bb9

1200 iterations on a (Apple M1 (Virtual)), where the most stable 20 subsequent iterations are sampled.

Json Test (Prettified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 1149.22 3.0198 72944 60562.4 1891.52 4.78375 72944 36804.8
glaze 1023.98 3.007 72944 67962.6 1756.37 3.59477 72944 39618.8
simdjson 957.068 4.67496 72944 72749.9

Json Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
glaze 766.509 3.12222 41333 51447.8 1607.33 1.74254 41333 24527.3
jsonifier 683.492 2.93713 41333 57689.6 1955.36 3.04428 41333 20164.7
simdjson 565.932 3.65207 41333 69689.6

Partial Test (Prettified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 770.428 4.81511 3621 4487.5 736.428 3.81133 3621 4693
simdjson 733.969 3.48906 3621 4708.4

Partial Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 517.593 3.33493 2055 3787.91 866.588 4.77836 2055 2266.6
simdjson 420.622 4.42468 2055 4662.45

Abc (Out of Order) Test (Prettified) Results (View the data used in the following test):

The JSON documents in the previous tests featured keys ranging from "a" to "z", where each key corresponds to an array of values. Notably, the documents in this test arrange these keys in reverse order, deviating from the typical "a" to "z" arrangement.

This test effectively demonstrates the challenges encountered when utilizing simdjson and iterative parsers that lack the ability to efficiently allocate memory locations throughhashing. In cases where the keys are not in the expected sequence, performance is significantly compromised, with the severity escalating as the document size increases.

In contrast, hash-based solutions offer a viable alternative by circumventing these issues and maintaining optimal performance regardless of the JSON document's scale, or ordering of the keys being parsed.

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 1202.19 3.69281 72944 57906.2 2158.83 4.16847 72944 32241.6
glaze 1023.59 2.4466 72944 67972.9 1823.05 4.9979 72944 38180.6
simdjson 985.267 2.83619 72944 70633.4

Abc (Out of Order) Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
glaze 751.818 3.2807 41333 52462.6 1550.56 2.69098 41333 25427.2
jsonifier 709.351 3.7058 41333 55595.8 2006.22 2.57351 41333 19652
simdjson 587.398 3.26997 41333 67137.4

Discord Test (Prettified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 1801.35 3.44755 94378 49995.9 2634.8 4.88808 94378 34172.9
simdjson 1470.16 1.38237 105406 68379.2
glaze 1094.15 4.67051 94378 82277.1 2130.33 3.97777 94378 42285.4

Discord Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 1279.45 1.89558 56377 42027.1 2787.78 1.93184 56377 19289.7
simdjson 933.631 2.39988 61629 62960.4
glaze 815.809 1.3896 56377 65910.5 2562.03 3.14584 56377 20989.7

Canada Test (Prettified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 1443.11 0.59358 6661897 4.40255e+06 1810.92 1.21031 6661897 3.50848e+06
glaze 1312.61 0.378426 6661897 4.84024e+06 1258.31 4.23332 6661897 5.05331e+06
simdjson 1195.6 0.834761 6661897 5.31402e+06

Canada Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 614.773 0.48203 2090234 3.24254e+06 898.103 0.670019 2090234 2.21965e+06
glaze 592.144 0.640837 2090234 3.36645e+06 861.625 0.567771 2090234 2.31356e+06
simdjson 422.125 0.418011 2090234 4.72234e+06

CitmCatalog Test (Prettified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 2131.2 1.61476 1439562 644221 3119.09 1.1822 1439562 440158
simdjson 1763.97 1.82663 1423415 769669
glaze 1638.42 1.79483 1439584 838010 2833.66 1.08963 1439584 484508

CitmCatalog Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 1223.07 1.69592 500299 390135 2527.34 0.965559 500299 188790
glaze 915.369 2.5197 500299 521384 2176.74 1.52418 500299 219200
simdjson 733.018 1.46653 492910 641327

Twitter Partial Test (Prettified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
simdjson 1760.87 4.69475 44653 24197.9
jsonifier 1644.35 4.96351 44653 25921.7 3474.6 3.87501 44653 12264.6

Twitter Partial Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
simdjson 1676.69 3.84593 37543 21360.2
jsonifier 1652.78 4.95471 37543 21670.8 5274.14 3.58538 37543 6791.8

Twitter Test (Prettified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 2078.23 2.50976 719139 330071 3500.75 1.16054 719139 195913
simdjson 1730.2 1.78809 723784 398973
glaze 1154.05 1.15306 719139 594310 2791.4 0.980517 719139 245698

Twitter Test (Minified) Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns) Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
jsonifier 1593.09 2.42755 477706 286021 3830.47 0.85309 477706 118937
simdjson 1222.53 1.08889 479183 373817
glaze 891.246 1.50915 477706 511208 3182.42 0.959581 477706 143160

Minify Test Results (View the data used in the following test):

Library Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
glaze 1446.88 1.7302 466906 307769
jsonifier 1256.52 1.20924 466906 354375
simdjson 686.731 0.805735 466906 648412

Prettify Test Results (View the data used in the following test):

Library Write (MB/S) Write Percentage Deviation (+/-%) Write Length (Bytes) Write Time (ns)
glaze 1821.91 1.58531 699405 366148
jsonifier 1706.56 0.32597 699405 390848

Validate Test Results (View the data used in the following test):

Library Read (MB/S) Read Percentage Deviation (+/-%) Read Length (Bytes) Read Time (ns)
jsonifier 2459.36 0.114944 631515 244885
glaze 2396.92 0.143348 631515 251264