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| author | David Chinner <dgc@sgi.com> | 2006-03-14 13:13:09 +1100 |
|---|---|---|
| committer | Nathan Scott <nathans@sgi.com> | 2006-03-14 13:13:09 +1100 |
| commit | 8d280b98cfe3c0b69c37d355218975c1c0279bb0 (patch) | |
| tree | 2dc1deaec23a7da29b72152a4225c2600dacf1d4 /fs/xfs/xfs_fsops.c | |
| parent | 9f4cbecd7e5ee6390fecd6032dc04ca8c9805dc9 (diff) | |
| download | kernel_samsung_smdk4412-8d280b98cfe3c0b69c37d355218975c1c0279bb0.zip kernel_samsung_smdk4412-8d280b98cfe3c0b69c37d355218975c1c0279bb0.tar.gz kernel_samsung_smdk4412-8d280b98cfe3c0b69c37d355218975c1c0279bb0.tar.bz2 | |
[XFS] On machines with more than 8 cpus, when running parallel I/O
threads, the incore superblock lock becomes the limiting factor for
buffered write throughput. Make the contended fields in the incore
superblock use per-cpu counters so that there is no global lock to limit
scalability.
SGI-PV: 946630
SGI-Modid: xfs-linux-melb:xfs-kern:25106a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index b4d971b..56caa88 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -462,6 +462,7 @@ xfs_fs_counts( { unsigned long s; + xfs_icsb_sync_counters_lazy(mp); s = XFS_SB_LOCK(mp); cnt->freedata = mp->m_sb.sb_fdblocks; cnt->freertx = mp->m_sb.sb_frextents; |