Introduce Iain B. Findleton's great report of his gigabit-link observations.. See Tcl Socket Performance.Mention Microsoft explanation [1] of its networking fault.Point to more general page on Tcl Performance.See also Todd Corams Idoms: Building High Performance Networking Servers using Tcl [2]Also, there's a dual consideration of networking impacts on Tcl performance; explain DNS faults and so on.ns-2This [3] book review is likely to interest many readers.