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e677d0f954
linux/fs/xfs
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Dave Chinner e677d0f954 xfs: reduce the number of AIL push wakeups 
The xfaild often tries to rest to wait for congestion to pass of for
IO to complete, but is regularly woken in tail-pushing situations.
In severe cases, the xfsaild is getting woken tens of thousands of
times a second. Reduce the number needless wakeups by only waking
the xfsaild if the new target is larger than the old one. Further
make short sleeps uninterruptible as they occur when the xfsaild has
decided it needs to back off to allow some IO to complete and being
woken early is counter-productive.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-12-17 20:08:04 +11:00
..
linux-2.6 xfs: reduce the number of AIL push wakeups 2010-12-17 20:08:04 +11:00
quota xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
support
Kconfig quota: Make QUOTACTL config be selected by its users 2010-10-05 12:16:37 +02:00
Makefile
xfs_acl.h
xfs_ag.h xfs: convert pag_ici_lock to a spin lock 2010-12-16 17:08:41 +11:00
xfs_alloc_btree.c xfs: remove the ->kill_root btree operation 2010-10-18 15:07:38 -05:00
xfs_alloc_btree.h
xfs_alloc.c xfs: factor duplicate code in xfs_alloc_ag_vextent_near into a helper 2010-12-16 16:06:15 -06:00
xfs_alloc.h
xfs_arch.h
xfs_attr_leaf.c xfs: use KM_NOFS for allocations during attribute list operations 2010-12-23 11:57:37 +11:00
xfs_attr_leaf.h
xfs_attr_sf.h
xfs_attr.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_attr.h
xfs_bit.c
xfs_bit.h
xfs_bmap_btree.c
xfs_bmap_btree.h
xfs_bmap.c xfs: delayed alloc blocks beyond EOF are valid after writeback 2010-12-01 07:40:20 -06:00
xfs_bmap.h xfs: fix failed write truncation handling. 2010-12-01 07:40:19 -06:00
xfs_btree_trace.c
xfs_btree_trace.h
xfs_btree.c xfs: connect up buffer reclaim priority hooks 2010-12-02 16:31:13 +11:00
xfs_btree.h xfs: remove the ->kill_root btree operation 2010-10-18 15:07:38 -05:00
xfs_buf_item.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_buf_item.h xfs: use struct list_head for the buf cancel table 2010-12-16 16:05:22 -06:00
xfs_da_btree.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_da_btree.h
xfs_dfrag.c xfs: delayed alloc blocks beyond EOF are valid after writeback 2010-12-01 07:40:20 -06:00
xfs_dfrag.h
xfs_dinode.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_dir2_block.c
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h
xfs_dir2_leaf.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_dir2_leaf.h
xfs_dir2_node.c
xfs_dir2_node.h
xfs_dir2_sf.c
xfs_dir2_sf.h
xfs_dir2.c
xfs_dir2.h
xfs_error.c xfs: only run xfs_error_test if error injection is active 2010-12-01 07:40:20 -06:00
xfs_error.h xfs: only run xfs_error_test if error injection is active 2010-12-01 07:40:20 -06:00
xfs_extfree_item.c xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_extfree_item.h xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_filestream.c xfs: tell lockdep about parent iolock usage in filestreams 2010-11-10 12:00:48 -06:00
xfs_filestream.h xfs: clean up filestreams helpers 2010-07-26 13:16:51 -05:00
xfs_fs.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_fsops.c xfs: dynamic speculative EOF preallocation 2011-01-04 11:35:03 +11:00
xfs_fsops.h xfs: dummy transactions should not dirty VFS state 2010-08-24 11:46:31 +10:00
xfs_ialloc_btree.c xfs: remove the ->kill_root btree operation 2010-10-18 15:07:38 -05:00
xfs_ialloc_btree.h
xfs_ialloc.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_ialloc.h
xfs_iget.c xfs: convert pag_ici_lock to a spin lock 2010-12-16 17:08:41 +11:00
xfs_inode_item.c xfs: avoid moving stale inodes in the AIL 2010-12-01 07:40:20 -06:00
xfs_inode_item.h
xfs_inode.c xfs: connect up buffer reclaim priority hooks 2010-12-02 16:31:13 +11:00
xfs_inode.h xfs: don't truncate prealloc from frequently accessed inodes 2010-12-23 12:02:31 +11:00
xfs_inum.h
xfs_iomap.c xfs: dynamic speculative EOF preallocation 2011-01-04 11:35:03 +11:00
xfs_iomap.h xfs: kill xfs_iomap 2010-12-16 16:05:51 -06:00
xfs_itable.c xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_itable.h
xfs_log_cil.c xfs: bulk AIL insertion during transaction commit 2010-12-20 12:02:19 +11:00
xfs_log_priv.h xfs: use struct list_head for the buf cancel table 2010-12-16 16:05:22 -06:00
xfs_log_recover.c xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_log_recover.h
xfs_log.c Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2010-10-22 17:32:27 -07:00
xfs_log.h
xfs_mount.c xfs: convert pag_ici_lock to a spin lock 2010-12-16 17:08:41 +11:00
xfs_mount.h xfs: dynamic speculative EOF preallocation 2011-01-04 11:35:03 +11:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_quota.h xfs: fix a few compiler warnings with CONFIG_XFS_QUOTA=n 2010-11-10 12:00:48 -06:00
xfs_rename.c xfs: log timestamp changes to the source inode in rename 2010-12-09 17:07:02 -06:00
xfs_rtalloc.c xfs: use unhashed buffers for size checks 2010-10-18 15:07:50 -05:00
xfs_rtalloc.h
xfs_rw.c
xfs_rw.h
xfs_sb.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_trans_ail.c xfs: bulk AIL insertion during transaction commit 2010-12-20 12:02:19 +11:00
xfs_trans_buf.c xfs: remove xfs_buf wrappers 2010-10-18 15:08:07 -05:00
xfs_trans_extfree.c xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_trans_inode.c xfs: don't use vfs writeback for pure metadata modifications 2010-10-18 15:07:45 -05:00
xfs_trans_priv.h xfs: bulk AIL insertion during transaction commit 2010-12-20 12:02:19 +11:00
xfs_trans_space.h
xfs_trans.c xfs: bulk AIL insertion during transaction commit 2010-12-20 12:02:19 +11:00
xfs_trans.h xfs: connect up buffer reclaim priority hooks 2010-12-02 16:31:13 +11:00
xfs_types.h xfs: Extend project quotas to support 32bit project ids 2010-10-18 15:08:08 -05:00
xfs_utils.c xfs: remove xfs_cred.h 2010-10-18 15:08:06 -05:00
xfs_utils.h xfs: remove xfs_cred.h 2010-10-18 15:08:06 -05:00
xfs_vnodeops.c xfs: don't truncate prealloc from frequently accessed inodes 2010-12-23 12:02:31 +11:00
xfs_vnodeops.h xfs: remove xfs_cred.h 2010-10-18 15:08:06 -05:00
xfs.h