Mel Gorman 467c996c1e Print out statistics in relation to fragmentation avoidance to /proc/pagetypeinfo ... This patch provides fragmentation avoidance statistics via /proc/pagetypeinfo. The information is collected only on request so there is no runtime overhead. The statistics are in three parts: The first part prints information on the size of blocks that pages are being grouped on and looks like Page block order: 10 Pages per block: 1024 The second part is a more detailed version of /proc/buddyinfo and looks like Free pages count per migrate type at order 0 1 2 3 4 5 6 7 8 9 10 Node 0, zone DMA, type Unmovable 0 0 0 0 0 0 0 0 0 0 0 Node 0, zone DMA, type Reclaimable 1 0 0 0 0 0 0 0 0 0 0 Node 0, zone DMA, type Movable 0 0 0 0 0 0 0 0 0 0 0 Node 0, zone DMA, type Reserve 0 4 4 0 0 0 0 1 0 1 0 Node 0, zone Normal, type Unmovable 111 8 4 4 2 3 1 0 0 0 0 Node 0, zone Normal, type Reclaimable 293 89 8 0 0 0 0 0 0 0 0 Node 0, zone Normal, type Movable 1 6 13 9 7 6 3 0 0 0 0 Node 0, zone Normal, type Reserve 0 0 0 0 0 0 0 0 0 0 4 The third part looks like Number of blocks type Unmovable Reclaimable Movable Reserve Node 0, zone DMA 0 1 2 1 Node 0, zone Normal 3 17 94 4 To walk the zones within a node with interrupts disabled, walk_zones_in_node() is introduced and shared between /proc/buddyinfo, /proc/zoneinfo and /proc/pagetypeinfo to reduce code duplication. It seems specific to what vmstat.c requires but could be broken out as a general utility function in mmzone.c if there were other other potential users. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Andy Whitcroft <apw@shadowen.org> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-10-16 09:43:00 -07:00
..
array.c	sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields	2007-10-15 17:00:19 +02:00
base.c	Group short-lived and reclaimable kernel allocations	2007-10-16 09:43:00 -07:00
generic.c	Group short-lived and reclaimable kernel allocations	2007-10-16 09:43:00 -07:00
inode-alloc.txt
inode.c	Fix select on /proc files without ->poll	2007-09-11 17:21:20 -07:00
internal.h	[NET]: Make /proc/net per network namespace	2007-10-10 16:49:06 -07:00
kcore.c
kmsg.c
Makefile	[NET]: Make /proc/net per network namespace	2007-10-10 16:49:06 -07:00
mmu.c
nommu.c
proc_devtree.c
proc_misc.c	Print out statistics in relation to fragmentation avoidance to /proc/pagetypeinfo	2007-10-16 09:43:00 -07:00
proc_net.c	[NETNS]: Move some code into __init section when CONFIG_NET_NS=n	2007-10-10 16:54:58 -07:00
proc_sysctl.c	Remove redundant check from proc_sys_setattr()	2007-05-08 11:15:10 -07:00
proc_tty.c	Make /proc/tty/drivers use seq_list_xxx helpers	2007-07-16 09:05:42 -07:00
root.c	[NET]: Make /proc/net per network namespace	2007-10-10 16:49:06 -07:00
task_mmu.c	proc: maps protection	2007-05-08 11:15:02 -07:00
task_nommu.c	proc: maps protection	2007-05-08 11:15:02 -07:00
vmcore.c