Subject: Re: enlightenment on zs overruns
To: Paul Kranenburg <pk@cs.few.eur.nl>
From: After 5 PM please slip brain through slot in door. <greywolf@starwolf.starwolf.com>
List: port-sparc
Date: 11/20/1997 21:56:27
Paul Kranenburg sez:
/*
* This is where the fun starts.. the sun4c MMU uses a two-level translation
* table scheme. The most significant 14 bits of a virtual address are used
* to index the MMU context table. Two bits out these 14 are effectively
* not used leaving a table of 2**12 (4096) entries to be initialized.
* A couple of these are reserved for kernel-mode addresses, and pmap module
* also tries hard to avoid loading entries which aren't used, but you still
* need to fill many of these. This is what takes a relatively long time..
4096? Does this mean that the actual number of process slots cannot
exceed this number, i.e., can only 4096 processes run on the machine
at any given time?
...or am I way off base here and completely misreading what you've writ?
*
* -pk
*/
--*greywolf;
--
Have A Nice Day. (This may be pronounced differently in New York or Boston.)