Fundamental defect of the concept of shared libraries

[Masataka Ohta]

In article <1991May20.090857 at wsl.dec.com> mcnally at wsl.dec.com writes:

>|> You don't know about hardware enough. Because address translation is time
>|> consuming, fast cache is always indexed by virtual address. Thesedays,
>|> virtually indexed cache is quite common.

>|> So, if you want shared libraries, you can put it only on slower machines.

>How about MIPS R3000/R4000?  Maybe that's not fast enough.

The primary cache of R4000 is virtually indexed and physically tagged.
That is, it can't map different virtual addresses to a physical address.

							Masataka Ohta