git: kernel - Greatly reduce kernel memory use for x86_64
commit 722871d34e51e1c7f2e4faec1ae2bca0e3a8f18a
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Tue Sep 28 15:42:55 2010 -0700
kernel - Greatly reduce kernel memory use for x86_64
* Remove the kmemusage array entirely and instead store ku_pagecnt
in the vm_page structure.
This allows x86_64 to boot with 128G of KVM without eating tons of
real memory, in addition to another recent commit which reduced
real memory use w/ large KVM spaces.
Reported-by: John Marino
Summary of changes:
sys/kern/kern_slaballoc.c | 52 ++++++++++++++-----------------
sys/platform/pc32/i386/pmap.c | 9 +++++
sys/platform/pc64/x86_64/pmap.c | 9 +++++
sys/platform/vkernel/platform/pmap.c | 12 +++++++
sys/platform/vkernel64/platform/pmap.c | 12 +++++++
sys/sys/malloc.h | 14 --------
sys/vm/pmap.h | 1 +
sys/vm/vm_page.h | 1 +
8 files changed, 68 insertions(+), 42 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/722871d34e51e1c7f2e4faec1ae2bca0e3a8f18a
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