Josef Bacik 1ae3993825 Btrfs: do not use async submit for small DIO io's ... When looking at our DIO performance Chris said that for small IO's doing the async submit stuff tends to be more overhead than it's worth. With this on top of my other fixes I get about a 17-20% speedup doing a sequential dd with 4k IO's. Basically if we don't have to split the bio for the map length it's small enough to be directly submitted, otherwise go back to the async submit. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>		2011-04-08 13:00:39 -04:00
..
acl.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2011-02-07 14:06:18 -08:00
async-thread.c
async-thread.h
btrfs_inode.h	Btrfs: change reserved_extents to an atomic_t	2011-03-17 14:21:18 -04:00
compat.h
compression.c	Btrfs: check return value of btrfs_alloc_path()	2011-03-28 05:37:54 -04:00
compression.h
ctree.c	Btrfs: check return value of read_tree_block()	2011-03-28 05:37:37 -04:00
ctree.h	Btrfs: deal with the case that we run out of space in the cache	2011-04-08 13:00:27 -04:00
delayed-ref.c	Btrfs: add initial tracepoint support for btrfs	2011-03-28 05:37:33 -04:00
delayed-ref.h
dir-item.c	Btrfs: check return value of btrfs_alloc_path()	2011-03-28 05:37:54 -04:00
disk-io.c	Btrfs: Fix uninitialized root flags for subvolumes	2011-04-05 01:20:24 -04:00
disk-io.h	Btrfs: forced readonly mounts on errors	2011-01-17 15:13:08 -05:00
export.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2011-02-07 14:06:18 -08:00
export.h
extent-tree.c	Btrfs: fix OOPS of empty filesystem after balance	2011-03-28 05:37:53 -04:00
extent_io.c	Btrfs: add initial tracepoint support for btrfs	2011-03-28 05:37:33 -04:00
extent_io.h	Btrfs: check items for correctness as we search	2011-03-17 14:21:37 -04:00
extent_map.c	Btrfs: check return value of alloc_extent_map()	2011-02-14 16:21:37 -05:00
extent_map.h
file-item.c	Btrfs: check return value of btrfs_alloc_path()	2011-03-28 05:37:54 -04:00
file.c	Btrfs: deal with the case that we run out of space in the cache	2011-04-08 13:00:27 -04:00
free-space-cache.c	Btrfs: deal with the case that we run out of space in the cache	2011-04-08 13:00:27 -04:00
free-space-cache.h	Btrfs: add btrfs_trim_fs() to handle FITRIM	2011-03-28 05:37:47 -04:00
hash.h
inode-item.c
inode-map.c	Btrfs: cleanup some BUG_ON()	2011-03-28 05:37:35 -04:00
inode.c	Btrfs: do not use async submit for small DIO io's	2011-04-08 13:00:39 -04:00
ioctl.c	Btrfs: Fix uninitialized root flags for subvolumes	2011-04-05 01:20:24 -04:00
ioctl.h	Merge branch 'lzo-support' of git://repo.or.cz/linux-btrfs-devel into btrfs-38	2011-01-16 11:25:54 -05:00
Kconfig
locking.c
locking.h
lzo.c	Btrfs: Avoid accessing unmapped kernel address	2011-02-16 15:37:58 -05:00
Makefile
ordered-data.c	Btrfs: add initial tracepoint support for btrfs	2011-03-28 05:37:33 -04:00
ordered-data.h
orphan.c
print-tree.c	btrfs: fix missing break in switch phrase	2011-01-28 16:40:37 -05:00
print-tree.h
ref-cache.c
ref-cache.h
relocation.c	Btrfs: check return value of read_tree_block()	2011-03-28 05:37:37 -04:00
root-tree.c	Btrfs: Fix uninitialized root flags for subvolumes	2011-04-05 01:20:24 -04:00
struct-funcs.c
super.c	Btrfs: fix /proc/mounts info.	2011-04-05 01:19:41 -04:00
sysfs.c
transaction.c	Btrfs: only retry transaction reservation once	2011-04-08 13:00:32 -04:00
transaction.h
tree-defrag.c
tree-log.c	btrfs: make inode ref log recovery faster	2011-03-28 05:37:48 -04:00
tree-log.h
version.h
version.sh
volumes.c	Btrfs: fix __btrfs_map_block on 32 bit machines	2011-03-28 05:37:59 -04:00
volumes.h	Btrfs: make btrfs_map_block() return entire free extent for each device of RAID0/1/10/DUP	2011-03-28 05:37:45 -04:00
xattr.c	Btrfs: add checks to verify dir items are correct	2011-03-17 14:21:41 -04:00
xattr.h
zlib.c