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| author | Eric Sandeen <sandeen@sandeen.net> | 2009-07-31 00:02:17 -0500 |
|---|---|---|
| committer | Felix Blyakher <felixb@sgi.com> | 2009-07-31 00:57:11 -0500 |
| commit | c8a4051c3731b6db224482218cfd535ab9393ff8 (patch) | |
| tree | 78b326f229fd670e37e1eb08f89bede4260aec95 /fs | |
| parent | 97db39a1f6f69e906e98118392400de5217aa33a (diff) | |
| download | blackbird-op-linux-c8a4051c3731b6db224482218cfd535ab9393ff8.tar.gz blackbird-op-linux-c8a4051c3731b6db224482218cfd535ab9393ff8.zip | |
xfs: bump up nr_to_write in xfs_vm_writepage
VM calculation for nr_to_write seems off. Bump it way
up, this gets simple streaming writes zippy again.
To be reviewed again after Jens' writeback changes.
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Cc: Chris Mason <chris.mason@oracle.com>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: Felix Blyakher <felixb@sgi.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_aops.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 7ec89fc05b2b..aecf2519db76 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1268,6 +1268,14 @@ xfs_vm_writepage( if (!page_has_buffers(page)) create_empty_buffers(page, 1 << inode->i_blkbits, 0); + + /* + * VM calculation for nr_to_write seems off. Bump it way + * up, this gets simple streaming writes zippy again. + * To be reviewed again after Jens' writeback changes. + */ + wbc->nr_to_write *= 4; + /* * Convert delayed allocate, unwritten or unmapped space * to real space and flush out to disk. |
