drf 序列化类性能上的一些建议

[kagxin]

序列化类的性能排序

性能排序

serializers.ModelSerializer 小于 ReadOnlyModelSerializer meta中指定read_only字段 小于 serializers.Serializer 小于 ReadOnlySerializer field中增加readonly=True参数

ref： https://hakibenita.com/django-rest-framework-slow

https://github.com/encode/django-rest-framework/commit/c2293e9f251b1f215825186a7bcbf5a006df0cb0 https://github.com/django/django/commit/a2c31e12da272acc76f3a3a0157fae9a7f6477ac 建议看英文原版文件中有pr地址 https://mp.weixin.qq.com/s/rw54cNzfvmBOTVaXrGqkgA

[kagxin]

python 序列化工具性能排名

Library	Many Objects (seconds)	One Object (seconds)	Relative
Custom	0.0256822	0.013052	1
lima	0.0383852	0.0197146	1.49996
serpy	0.104605	0.0706699	4.52507
Strainer	0.114318	0.0885544	5.23755
Toasted Marshmallow	0.292227	0.135766	11.0495
Lollipop	1.23894	0.419955	42.8277
Marshmallow	2.13818	0.749287	74.5457
kim	2.46978	1.32616	97.9997
Django REST Framework	2.53841	1.75292	110.789

ref: https://github.com/voidfiles/python-serialization-benchmark https://voidfiles.github.io/python-serialization-benchmark/

[kagxin]

django log SQL信息

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
        },
    },
    'loggers': {
        'django.db.backends': {
            'handlers': ['console'],
            'propagate': True,
            'level': 'DEBUG',
        },
    }
}