Subject: CVS commit: src/sys/arch/vax
To: None <>
From: Anders Magnusson <>
List: source-changes
Date: 03/03/2003 00:19:07
Module Name:	src
Committed By:	ragge
Date:		Sun Mar  2 22:19:06 UTC 2003

Modified Files:
	src/sys/arch/vax/include: pmap.h
	src/sys/arch/vax/vax: pmap.c

Log Message:
Change the pmap to use 512-byte pages as user page table pages instead of
PAGE_SIZE pages (4k). An average small program uses ~6 4k pages (24k),
while the same program only uses ~20 512 byte pages (10k), so it will be
a small memory usage improvement. The large improvement will be the upcoming
ability to share page table pages between processes for shared libraries.

Remaining: should be able to give back ptp pages to the system.

To generate a diff of this commit:
cvs rdiff -r1.57 -r1.58 src/sys/arch/vax/include/pmap.h
cvs rdiff -r1.123 -r1.124 src/sys/arch/vax/vax/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.