Hello! Dne sreda 4. september 2002 18:33 je Angelo Dell'Aera napisal(a): > >Segments are kind of superfluous for linux. They are superseeded by > >paging, but ia32 insists on still using them. So there is as little of > >them as possible. > > True. Infact Linux prefers paging since it guarantees portability to > other archs which support segmentation in a very limited way. Btw in Has anyone experiance with x86 32-bit segmentation (with paging) ? The way I understand is if OS is using segments it actualy doesn't have to do executable and shared-library relocations but task switch is probably more expensive. Plus increasing a memory segment (brk()) is extremly easy and you don't run in address space shortage as with pure paging (there is no external memory fragmentation). -- best regards, Rok Papež. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
