Compare to pydantic v2

[Olegt0rr]

Relates to #523

Also need to

• Update results

Also would be great to add both pydantic version comparison.

My results:

Benchmark - 1000 objects with validation

msgspec
  dumps: 126.68 us
  loads: 324.15 us
  total: 450.83 us

pydantic
  dumps: 2478.84 us
  loads: 1886.44 us
  total: 4365.29 us

cattrs
  dumps: 2025.52 us
  loads: 2365.95 us
  total: 4391.47 us

mashumaro
  dumps: 785.82 us
  loads: 1392.68 us
  total: 2178.51 us

pip freeze

annotated-types==0.5.0
attrs==23.1.0
cattrs==23.1.2
certifi==2023.7.22
charset-normalizer==3.2.0
idna==3.4
mashumaro==3.9
msgpack==1.0.5
-e git+https://github.com/Olegt0rr/msgspec.git@0041a67b77ee91286b5e76b6529ee3e32f66df6b#egg=msgspec
orjson==3.9.5
pydantic==2.1.1
pydantic_core==2.4.0
requests==2.31.0
typing_extensions==4.7.1
ujson==5.8.0
urllib3==2.0.4

[akotlar]

Impressive advantage for msgspec vs pydantic v2

[ofek]

cc @samuelcolvin

[jcrist]

Thanks for the PR and apologies for the delay here, I haven't had as much time as usual to devote to OSS activities lately. I've pushed an extra commit to this PR that does a major overhaul to the benchmarks. A brief summary:

• Benchmark against Pydantic V2 instead of V1
• Adds a few additional JSON and MessagePack libraries
• Documents the versions of libraries used for each run
• Bumps the python version used from 3.9 to 3.11. This made several of the pure-python libraries compared measurably faster. Yay for the faster CPython initiative.