Programming VIP

1, Introduction theory overview 1.1 introduction and theoretical overview of virtualization technology Because there was a set of statistical data in the early EPA report: when EPA studied the energy efficiency of servers and data centers, it found that in fact, only 5% of the time of servers are working, and the rest of the time has bee ...

BlingOS Development notes -- development preparation and environment configuration preface Reasons for developing the operating system: 1. Want to understand the operating system in a more direct way 2. This ™ It's me, bisher References: 1. Operating system image restoration 2. The 4th edition of the original book of modern operating syst ...

1, centos7 common commands 1. Check CPU, hard disk and memory usage #View CPU $ dmesg |grep -i xeon #view memory $ free -m with MB Query memory in units #View hard disk $ df -m with Mb Displays disk usage and occupancy in units 2. Firewall 2.1 systemctl command View status $ systemctl status firewalld.service Turn on the firewall $ s ...

1, Introduction The graphical interface packaged on MacOS must be created from the Bundle. This Bundle is like Apk, which contains code, libraries, resource files and so on. If you create a QT project by yourself and use a. pro file, this file will have the Bundle attribute. To be safe, you can also add the following: CONFIG+=app_bundle If ...