v0.19.0
The gup command was designed to create as many goroutines as the number of binaries existing in $GOBIN. However, in an environment with a large number of binaries, the CPU load was extremly high.
Therefore, from Ver. 0.19.0, the upper limit of the number of goroutines created is set to the number of CPU cores.
The upper limit for the number of CPU cores used can be changed with the "--jobs" option. The default is the maximum number of CPU cores.