Docker performance issu

Xiaobai asks a question: on a server (such as 4core 16G), use docker to run a web application and launch only one container. I understand that docker is a process, so will there be any performance problems in the docker container? Can you make full use of the hardware of the server?

Mar.02,2021

using docker is generally not as good as using a machine directly, which generally has little impact and is better than a virtual machine.

if you have extreme performance requirements and the machine is limited, you'd better not use it.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-7ac50d-2cc6b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7ac50d-2cc6b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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