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24ab9cd85c
linux/fs/btrfs
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Chris Mason 24ab9cd85c Btrfs: Raise thresholds for metadata writeback 
Btrfs metadata writeback is fairly expensive.  Once a tree block is written
it must be cowed before it can be changed again.  The btree writepages
code has a threshold based on a count of dirty btree bytes which is
updated as IO is sent out.

This changes btree_writepages to skip the writeout if there are less
than 32MB of dirty bytes from the btrees, improving performance
across many workloads.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 15:41:59 -04:00
..
acl.c Btrfs: optimize btrget/set/removexattr 2008-09-25 11:04:07 -04:00
async-thread.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
async-thread.h Btrfs: Give all the worker threads descriptive names 2008-09-25 11:04:06 -04:00
bit-radix.c Btrfs: trivial include fixups 2007-07-11 10:00:37 -04:00
bit-radix.h Btrfs: add GPLv2 2007-06-12 09:07:21 -04:00
btrfs_inode.h Btrfs: Dir fsync optimizations 2008-09-25 11:04:07 -04:00
compat.h Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
COPYING Btrfs: add GPLv2 2007-06-12 09:07:21 -04:00
crc32c.h Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
ctree.c Btrfs: Full back reference support 2008-09-25 11:04:07 -04:00
ctree.h Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
dir-item.c Btrfs: Add a write ahead tree log to optimize synchronous operations 2008-09-25 11:04:07 -04:00
disk-io.c Btrfs: Raise thresholds for metadata writeback 2008-09-25 15:41:59 -04:00
disk-io.h Btrfs: Tree logging fixes 2008-09-25 11:04:07 -04:00
export.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
export.h NFS support for btrfs - v3 2008-09-25 11:04:06 -04:00
extent_io.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
extent_io.h Btrfs: Tree logging fixes 2008-09-25 11:04:07 -04:00
extent_map.c Btrfs: Fix add_extent_mapping to check for duplicates across the whole range 2008-09-25 11:04:06 -04:00
extent_map.h Btrfs: Fix some data=ordered related data corruptions 2008-09-25 11:04:05 -04:00
extent-tree.c Btrfs: fix sleep with spinlock held during unmount 2008-09-25 15:41:59 -04:00
file-item.c Btrfs: Fix variable init during csum creation 2008-09-25 11:04:07 -04:00
file.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
free-space-cache.c Btrfs: Fix allocation completions in tree log replay 2008-09-25 15:41:59 -04:00
hash.h Switch btrfs_name_hash() to crc32c 2008-09-25 11:04:06 -04:00
inode-item.c Btrfs: Implement new dir index format 2008-09-25 11:04:05 -04:00
inode-map.c Btrfs: Update find free objectid function for orphan cleanup code 2008-09-25 11:04:07 -04:00
inode.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
INSTALL Btrfs: Documentation update 2007-06-22 14:49:31 -04:00
ioctl.c Btrfs: Full back reference support 2008-09-25 11:04:07 -04:00
ioctl.h Btrfs: transaction ioctls 2008-09-25 11:04:03 -04:00
locking.c btrfs_search_slot: reduce lock contention by cowing in two stages 2008-09-25 11:04:06 -04:00
locking.h btrfs_search_slot: reduce lock contention by cowing in two stages 2008-09-25 11:04:06 -04:00
Makefile Update Btrfs files for in-kernel usage 2008-09-25 15:41:59 -04:00
ordered-data.c Btrfs: Fix nodatacow for the new data=ordered mode 2008-09-25 11:04:06 -04:00
ordered-data.h Btrfs: Fix nodatacow for the new data=ordered mode 2008-09-25 11:04:06 -04:00
orphan.c Btrfs: Create orphan inode records to prevent lost files after a crash 2008-09-25 11:04:05 -04:00
print-tree.c Btrfs: Full back reference support 2008-09-25 11:04:07 -04:00
print-tree.h Btrfs: Create extent_buffer interface for large blocksizes 2008-09-25 11:03:56 -04:00
ref-cache.c Btrfs: implement memory reclaim for leaf reference cache 2008-09-25 11:04:05 -04:00
ref-cache.h Btrfs: implement memory reclaim for leaf reference cache 2008-09-25 11:04:05 -04:00
root-tree.c Btrfs: Add a write ahead tree log to optimize synchronous operations 2008-09-25 11:04:07 -04:00
struct-funcs.c Btrfs: unaligned access fixes 2008-09-25 11:04:00 -04:00
super.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
sysfs.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
TODO Btrfs: add GPLv2 2007-06-12 09:07:21 -04:00
transaction.c Btrfs: Record dirty pages tree-log pages in an extent_io tree 2008-09-25 11:04:07 -04:00
transaction.h Btrfs: Record dirty pages tree-log pages in an extent_io tree 2008-09-25 11:04:07 -04:00
tree-defrag.c Btrfs: Add a write ahead tree log to optimize synchronous operations 2008-09-25 11:04:07 -04:00
tree-log.c Btrfs: Full back reference support 2008-09-25 11:04:07 -04:00
tree-log.h Btrfs: Add a write ahead tree log to optimize synchronous operations 2008-09-25 11:04:07 -04:00
version.h Update Btrfs files for in-kernel usage 2008-09-25 15:41:59 -04:00
version.sh Btrfs: Update version.sh to v0.16 2008-09-25 11:04:06 -04:00
volumes.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
volumes.h Btrfs: Fix the multi-bio code to save the original bio for completion 2008-09-25 11:04:06 -04:00
xattr.c Btrfs: optimize btrget/set/removexattr 2008-09-25 11:04:07 -04:00
xattr.h Btrfs: optimize btrget/set/removexattr 2008-09-25 11:04:07 -04:00