4 ms·
It's mentioned in the paper "EROS: a fast capability system" (http://www.eros-os.org/papers/sosp99-eros-preprint.ps http://www.eros-os.org/papers/sosp99-eros-pr
by vilhelm_s 15y ago
It's mentioned in the paper "EROS: a fast capability system" (http://www.eros-os.org/papers/sosp99-eros-preprint.ps http://www.eros-os.org/papers/sosp99-eros-preprint.ps): they write "This design is similar to that adopted in Fluke and MIT’s ITS system" and cite the ITS reference manual for the latter.
(I remembered reading that paragraph since before that I had only ever seen the technique mentioned in Gabriel's essay :) ).
- derleth 15y agoWell, my point is this: If only three or four OSes have ever implemented it, none of which have been very successful, how important could it possibly be? Do other OSes have ways of making the problem irrelevant without actually fixing it like ITS, Fluke, and EROS did?