AOLserver 3.3+AD13 would cache compiled Tcl page
bytecode instead of reloading the file every time the
page was hit.
Rob Mayoff implemented this in file.tcl and
tclcache.tcl (new). The feature relied on the ns_cache
command provided by the nscache module. (The code does
check for the availability of the command.)
The attached file includes file.tcl and tclcache.tcl.