Re: Memory Rusting Effect [re: Linux hostile to poverty]

Anthony Barbachan (barbacha@trill.cis.fordham.edu)
Mon, 20 Jul 1998 02:58:55 -0400


The "Memory Rusting Effect" however is something completely different.
People
have been detecting memory fragmentation problems in the 2.1.x kernels for
some
time now. Those problems don't exist on 2.0.x kernels.

Just wondering. Does the memory fragmentation problem affect user mode
programs. My OS book said that virtual memory supposedly solved the memory
fragmentation problem because memory was broken up into small blocks which
can be placed anywhere when being swapped into memory. Then the translation
tables take care of the addressing issues. Since parts of the kernel aren't
swapped out (and I assume don't use virtual addresses) then I can understand
how fragmentation affects it. But after a system is up and running how how
does fragmentation come to affect the system?

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