The sizes of many kernel statistics are completely independent of whether the kernel is a 64-bit or 32-bit program. The data types exported by named kstats are self-describing, and export signed or unsigned, 32-bit or 64-bit counter data, appropriately tagged. Thus, applications using libkstat need not be made into 64-bit applications to work successfully with the 64-bit kernel. For more information, see the kstat(3KSTAT) man page.