Cisco HFR

Adrian Chadd adrian at
Wed May 26 16:30:52 UTC 2004

On Wed, May 26, 2004, Iljitsch van Beijnum wrote:

> Palm has taken an interesting approach to get rid of fragmentation: the 
> OS is allowed to move (some) structures from one physical memory 
> location to another. This only works if the processes that use this 
> memory are written to support this, of course.

Its not a new technique - if you allocate memory "handlers" rather than
addresses and ask the OS/Memorymanager to lock a handler in memory
(and give you an address) then the OS/MM is able to move around unlocked
memory blocks, even on/off disk, at whim.

Win16 memory allocation looked like this, and I'm sure it was lifted
from something even older.

Its not actually a bad idea in a single-process standalone application.
It certainly beats using a VM in this instance.

Anyway, back to the network topics.


Adrian Chadd			I'm only a fanboy if
<adrian at>	    I emailed Wesley Crusher.


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