This is a glibc wrapper for the sysctl system call, which has been deprecated since forever in the kernel, is compiled in only if an option is specified (major

This is a glibc wrapper for the sysctl system call, which has been deprecated since forever in the kernel, is compiled in only if an option is specified (major distros don't enable it), and is likely to be removed completely at some point. Currently trying to use it, even if enabled, generates a warning in the kernel log. http://man7.org/linux/man-pages/man2/sysctl.2.html http://man7.org/linux/man-pages/man2/sysctl.2.html