QT method of compiling projects using multithreading

Recently, I found that the compilation speed of new projects is very slow , Look at the configuration of the computer ,10 Generation i5 processor , Powerful 6 The core 12 Thread processing power , At compile time, only 10% Of cpu Occupy , Only one thread is used to compile , It's obviously not playing cpu All the strength of . In this case, turn on make Multithreaded compilation mode

Click item , Build and run , In the build step . Click on make Later details , stay make Add... To the parameters -j 12 This parameter , It means using 12 Thread compiler

After that, the compilation speed is greatly accelerated ,cpu The utilization rate has reached 90%.
For powerful cpu, Is to squeeze its performance . I am waiting for the result , And you cpu But slowly 10% The usage rate of is compiling . It really doesn't look good ！