Mark Fasheh b07f8f24df ocfs2: change default reservation window sizes ... The default reservation size of 4 (32-bit windows) is a bit too ambitious. Scale it back to 16 bits (resv_level=2). I have been testing various sizes on a 4-node cluster which runs a mixed workload that is heavily threaded. With a 256MB local alloc, I get *roughly* the following levels of average file fragmentation: resv_level=0 70% resv_level=1 21% resv_level=2 23% resv_level=3 24% resv_level=4 60% resv_level=5 did not test resv_level=6 60% resv_level=2 seemed like a good compromise between not letting windows be too small, but not so big that heavier workloads will immediately suffer without tuning. This patch also change the behavior of directory reservations - they now track file reservations. The previous compromise of giving directory windows only 8 bits wound up fragmenting more at some window sizes because file allocations had smaller unused windows to poach from. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>		2010-05-05 18:18:07 -07:00
..
caching	CacheFiles: Catch an overly long wait for an old active object	2009-11-19 18:12:05 +00:00
configfs	docsrc: build Documentation/ sources	2008-08-12 16:07:30 -07:00
nfs	nfsd: 4.1 has an rfc number	2010-01-20 17:17:04 -05:00
pohmelfs	Staging: Pohmelfs: Added IO permissions and priorities.	2009-04-17 11:06:30 -07:00
9p.txt	9p: Update documentation to add fscache related bits	2009-09-23 13:03:46 -05:00
00-INDEX	Documentation/fs/: split txt and source files	2010-03-12 15:52:35 -08:00
adfs.txt	Fix typos in /Documentation : 'U-Z'	2006-11-30 04:58:40 +01:00
affs.txt
afs.txt	AFS: Documentation updates	2009-08-19 10:40:13 -07:00
autofs4-mount-control.txt	trivial: Miscellaneous documentation typo fixes	2009-06-12 18:01:47 +02:00
automount-support.txt	VFS: Unexport do_kern_mount() and clean up simple_pin_fs()	2006-06-09 09:34:16 -04:00
befs.txt	Fix typos in Documentation/: 'Q'-'R'	2006-10-03 22:54:15 +02:00
bfs.txt	remove mention of CONFIG_KMOD from documentation	2008-07-22 19:24:29 +10:00
btrfs.txt	Btrfs: Add Documentation/filesystem/btrfs.txt, remove old COPYING	2009-01-07 09:54:24 -05:00
cifs.txt
coda.txt
cramfs.txt
debugfs.txt	Document the debugfs API	2009-06-06 10:28:14 -06:00
dentry-locking.txt	rcu: 1Q2010 update for RCU documentation	2010-01-16 10:25:22 +01:00
devpts.txt	Document usage of multiple-instances of devpts	2009-01-02 10:19:36 -08:00
directory-locking	Documentation: Fix up docs still talking about i_sem	2007-05-24 10:16:17 -07:00
dlmfs.txt	Fix typos in Documentation/: 'D'-'E'	2006-10-03 22:47:42 +02:00
dnotify_test.c	Documentation/fs/: split txt and source files	2010-03-12 15:52:35 -08:00
dnotify.txt	Documentation/fs/: split txt and source files	2010-03-12 15:52:35 -08:00
ecryptfs.txt	eCryptfs: Move ecryptfs docs into Documentation/filesystems/	2007-07-17 10:23:08 -07:00
exofs.txt	trivial: some small fixes in exofs documentation	2009-12-10 09:59:16 +02:00
ext2.txt	Doc fix: ext2 can only have 32,000 subdirs, not 32,768	2009-06-18 13:03:44 -07:00
ext3.txt	ext3: make "norecovery" an alias for "noload"	2009-12-10 15:02:52 +01:00
ext4.txt	ext4: Update documentation to correct the inode_readahead_blks option name	2009-12-24 17:51:42 -05:00
fiemap.txt	trivial: Miscellaneous documentation typo fixes	2009-06-12 18:01:47 +02:00
files.txt	fix f_count description in Documentation/filesystems/files.txt	2008-12-31 18:07:42 -05:00
fuse.txt	[PATCH] fuse: fix typo	2006-12-30 10:56:45 -08:00
gfs2-glocks.txt	GFS2: Update docs	2009-05-19 10:23:23 +01:00
gfs2-uevents.txt	GFS2: Add a document explaining GFS2's uevents	2009-08-17 11:11:41 +01:00
gfs2.txt	GFS2: Update docs	2009-05-19 10:23:23 +01:00
hfs.txt
hfsplus.txt	Documentation: document HFSPlus	2007-07-31 15:39:38 -07:00
hpfs.txt	misc doc and kconfig typos	2007-05-09 08:58:15 +02:00
inotify.txt	[PATCH] inotify (5/5): update kernel documentation	2006-06-20 05:25:19 -04:00
isofs.txt	isofs: let mode and dmode mount options override rock ridge mode setting	2009-06-18 13:03:45 -07:00
jfs.txt	JFS: document uid, gid, and umask mount options in jfs.txt	2007-03-09 10:27:31 -06:00
Locking	dquot: cleanup dquot initialize routine	2010-03-05 00:20:30 +01:00
locks.txt	Documentation: move locks.txt in filesystems/	2007-10-09 18:32:45 -04:00
logfs.txt	[LogFS] add new flash file system	2009-11-20 20:13:39 +01:00
Makefile	Documentation/fs/: split txt and source files	2010-03-12 15:52:35 -08:00
mandatory-locking.txt	locks: add warning about mandatory locking races	2007-10-09 18:32:45 -04:00
ncpfs.txt	ncpfs: remove dead URL from documentation	2009-09-23 07:39:42 -07:00
nilfs2.txt	nilfs2: issue discard request after cleaning segments	2010-02-13 12:26:02 +09:00
ntfs.txt	NTFS: update homepage	2008-09-02 19:21:37 -07:00
ocfs2.txt	ocfs2: change default reservation window sizes	2010-05-05 18:18:07 -07:00
omfs.txt	omfs: add filesystem documentation	2008-07-26 12:00:05 -07:00
porting	nfs: new subdir Documentation/filesystems/nfs	2009-10-27 19:34:04 -04:00
proc.txt	Merge branch 'for-next' into for-linus	2010-03-08 16:55:37 +01:00
quota.txt	quota: documentation for sending "below quota" messages via netlink and tiny doc update	2008-08-12 16:07:27 -07:00
ramfs-rootfs-initramfs.txt	Trivial Documentation/filesystems/ramfs-rootfs-initramfs.txt fix	2008-11-30 11:40:56 -08:00
relay.txt	relay: add buffer-only channels; useful for early logging	2008-07-26 12:00:04 -07:00
romfs.txt
seq_file.txt	seq_file: use proc_create() in documentation	2009-12-16 07:20:07 -08:00
sharedsubtree.txt	add several pieces to shared subtree documentation	2010-03-03 13:00:23 -05:00
smbfs.txt
spufs.txt	Fix typos in /Documentation : 'U-Z'	2006-11-30 04:58:40 +01:00
squashfs.txt	Squashfs: fix documentation typo, Cramfs filesystem limit is 256 MiB	2009-03-05 00:40:13 +00:00
sysfs-pci.txt	trivial: Miscellaneous documentation typo fixes	2009-06-12 18:01:47 +02:00
sysfs.txt	Driver core: driver_attribute parameters can often be const*	2009-12-23 11:23:43 -08:00
sysv-fs.txt	[PATCH] fs/sysv/: doc cleanup	2006-12-07 08:39:44 -08:00
tmpfs.txt	hugh: update email address	2009-05-21 13:14:32 -07:00
ubifs.txt	UBIFS: remove fast unmounting	2009-01-29 16:34:30 +02:00
udf.txt	udf: implement mode and dmode mounting options	2009-04-02 12:29:50 +02:00
ufs.txt	[PATCH] ufs2 write: mount as rw	2007-02-12 09:48:40 -08:00
vfat.txt	vfat: change the default from shortname=lower to shortname=mixed	2009-08-01 21:35:25 +09:00
vfs.txt	kill wait_on_page_writeback_range	2009-12-10 15:02:50 +01:00
xfs.txt	[XFS] remove restricted chown parameter from xfs linux	2008-10-30 18:30:09 +11:00
xip.txt	DOC: update xip method info	2008-11-12 17:17:17 -08:00