ncore

打印应用可用的核心数，考虑如cgroups等因素。

用法

Print the number of _usable_ cores available to the process, taking into account things like cgroup
resource limits

Usage: 

Options:
  -n, --no-newline  Do not output a trailing newline
  -h, --help        Print help information
  -V, --version     Print version information