Louis Reasoner has become concerned about the efficiency of the search rule implementation in the Eunuchs system
Question:
Louis Reasoner has become concerned about the efficiency of the search rule implementation in the Eunuchs system (an emasculated version of the unix system). He proposes to add a referenced object table (ROT), which the system will maintain for each session of each user, set to be empty when the user logs in. Whenever the system resolves a name through of use a search path, it makes an entry in the ROT consisting of the name and the path name of that object. The “already referenced” search rule simply searches the ROT to determine if the name in question appears there. If it finds a match, then the resolver will use the associated path name from the ROT. Louis proposes to always use the “already referenced” rule first, followed by the traditional search path mechanism. He claims that the user will detect no difference, except for faster name resolution. Is Louis right?
Step by Step Answer:
Principles Of Computer System Design An Introduction
ISBN: 9780123749574
1st Edition
Authors: Jerome H. Saltzer, M. Frans Kaashoek