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3.10.0
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ijl committed Mar 27, 2024
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9 changes: 9 additions & 0 deletions CHANGELOG.md
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# Changelog


## 3.10.0 - 2024-03-27

### Changed

- Support serializing `numpy.float16` (`numpy.half`).
- sdist uses metadata 2.3 instead of 2.1.
- Improve Windows PyPI builds.


## 3.9.15 - 2024-02-23

### Fixed
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2 changes: 1 addition & 1 deletion Cargo.lock
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2 changes: 1 addition & 1 deletion Cargo.toml
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[package]
name = "orjson"
version = "3.9.15"
version = "3.10.0"
authors = ["ijl <ijl@mailbox.org>"]
description = "Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy"
edition = "2021"
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84 changes: 42 additions & 42 deletions README.md
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Expand Up @@ -1027,81 +1027,81 @@ format, containing floats and arrays, indented.

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 0.3 | 3560 | 1 |
| ujson | 2.1 | 473 | 7.5 |
| rapidjson | 1.7 | 596 | 5.9 |
| simplejson | 3.1 | 324 | 10.8 |
| json | 2.5 | 397 | 8.9 |
| orjson | 0.3 | 3085 | 1 |
| ujson | 2.2 | 454 | 6.7 |
| rapidjson | 1.7 | 605 | 5.1 |
| simplejson | 2.9 | 350 | 8.8 |
| json | 2.3 | 439 | 7 |

#### twitter.json deserialization

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 1.2 | 811 | 1 |
| ujson | 2.9 | 347 | 2.3 |
| rapidjson | 5.1 | 197 | 4.1 |
| simplejson | 2.8 | 352 | 2.3 |
| json | 3.3 | 299 | 2.7 |
| orjson | 1.2 | 839 | 1 |
| ujson | 2.5 | 396 | 2.1 |
| rapidjson | 4.1 | 243 | 3.5 |
| simplejson | 2.7 | 367 | 2.3 |
| json | 3.2 | 310 | 2.7 |

#### github.json serialization

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 0 | 39916 | 1 |
| ujson | 0.2 | 4969 | 8 |
| rapidjson | 0.2 | 5754 | 6.9 |
| simplejson | 0.3 | 2916 | 13.7 |
| json | 0.3 | 3916 | 10.3 |
| orjson | 0 | 33474 | 1 |
| ujson | 0.2 | 5179 | 6.5 |
| rapidjson | 0.2 | 5910 | 5.7 |
| simplejson | 0.3 | 3051 | 11 |
| json | 0.2 | 4222 | 7.9 |

#### github.json deserialization

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 0.1 | 9879 | 1 |
| ujson | 0.2 | 4059 | 2.3 |
| rapidjson | 0.3 | 3772 | 2.6 |
| simplejson | 0.2 | 5092 | 1.9 |
| json | 0.2 | 4944 | 2 |
| orjson | 0.1 | 10211 | 1 |
| ujson | 0.2 | 4222 | 2.2 |
| rapidjson | 0.3 | 3947 | 2.6 |
| simplejson | 0.2 | 5437 | 1.9 |
| json | 0.2 | 5240 | 1.9 |

#### citm_catalog.json serialization

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 0.6 | 1601 | 1 |
| ujson | 2.9 | 340 | 4.8 |
| rapidjson | 2.3 | 429 | 3.8 |
| simplejson | 12.5 | 79 | 20.3 |
| json | 5.7 | 176 | 9.2 |
| orjson | 0.6 | 1549 | 1 |
| ujson | 2.7 | 366 | 4.2 |
| rapidjson | 2.2 | 446 | 3.5 |
| simplejson | 11.3 | 88 | 17.6 |
| json | 5.1 | 195 | 7.9 |

#### citm_catalog.json deserialization

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 2.9 | 341 | 1 |
| ujson | 5 | 202 | 1.7 |
| rapidjson | 8.3 | 119 | 2.8 |
| simplejson | 6.6 | 151 | 2.2 |
| json | 7 | 141 | 2.4 |
| orjson | 2.7 | 367 | 1 |
| ujson | 4.7 | 213 | 1.7 |
| rapidjson | 7.2 | 139 | 2.6 |
| simplejson | 6 | 167 | 2.2 |
| json | 6.3 | 158 | 2.3 |

#### canada.json serialization

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 5.3 | 186 | 1 |
| ujson | 17.2 | 57 | 3.2 |
| rapidjson | 45.3 | 22 | 8.5 |
| simplejson | 70.9 | 14 | 13.3 |
| json | 49.7 | 20 | 9.3 |
| orjson | 4.8 | 208 | 1 |
| ujson | 15.6 | 63 | 3.3 |
| rapidjson | 42.4 | 23 | 8.9 |
| simplejson | 72 | 13 | 15 |
| json | 46.2 | 21 | 9.6 |

#### canada.json deserialization

| Library | Median latency (milliseconds) | Operations per second | Relative (latency) |
|------------|---------------------------------|-------------------------|----------------------|
| orjson | 6.7 | 149 | 1 |
| ujson | 15.2 | 66 | 2.3 |
| rapidjson | 30.1 | 33 | 4.5 |
| simplejson | 29.9 | 32 | 4.5 |
| json | 30.4 | 32 | 4.5 |
| orjson | 5.7 | 176 | 1 |
| ujson | 14 | 71 | 2.5 |
| rapidjson | 27.5 | 36 | 4.9 |
| simplejson | 28.4 | 35 | 5 |
| json | 28.3 | 35 | 5 |

### Memory

Expand Down Expand Up @@ -1156,8 +1156,8 @@ calling `loads()` on the fixture.

### Reproducing

The above was measured using Python 3.11.6 on Linux (amd64) with
orjson 3.9.11, ujson 5.9.0, python-rapidson 1.14, and simplejson 3.19.2.
The above was measured using Python 3.11.8 on Linux (amd64) with
orjson 3.10.0, ujson 5.9.0, python-rapidson 1.16, and simplejson 3.19.2.

The latency results can be reproduced using the `pybench` and `graph`
scripts. The memory results can be reproduced using the `pymem` script.
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