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Re: reverse proxy + mysql + video

kpoxa
April 05, 2016 06:42AM
Отдача с базы это
ос читает с диска в буфер, буфер копируется в процесс mysql, mysql
отправляет это в сеть, т.е. копирование в ОС, потом в сеть, потом в скрипт,
который далее по сети отдает данные в nginx, т.е. копирование в буфер, в
сетевой стэк, потом опять в буфер, потом в nginx который отдаёт данные по
сети клиенту ( не буду расписывать).
Отдача с диска это
ос читает с диска в буфер и отдает по сети клиенту, т.к. используется
sendfile и копирования в память nginx не происходит.
по моему профит очевиден.
с учетом того, что видео это не мелкие картинки, то оверхед на чтение
файловой системы намного меньше в % соотношении к операциям чтения данных.

вт, 5 апр. 2016 г. в 11:50, Daniel Podolsky <onokonem@gmail.com>:

> > может я что то пропустил, но какой смысл хранить данные в реляционной БД,
> > если вы не будете использовать при этом SQL?
> ну какой-то язык/api использовать придется.
>
> а ответ на вопрос "какой смысл" прямо вытекает из ответ на "в чем разница"
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Subject Author Posted

reverse proxy + mysql + video

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