implementation of these functions is rather expensive,
since they open and parse files in the
.I /sys
-file system each time they are called.
+filesystem each time they are called.
The following
.BR sysconf (3)
}
.fi
+.SH COLOPHON
+This page is part of release 3.79 of the Linux
+.I man-pages
+project.
+A description of the project,
+information about reporting bugs,
+and the latest version of this page,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.