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authorChris Mason <chris.mason@oracle.com>2009-02-04 17:23:24 +0300
committerChris Mason <chris.mason@oracle.com>2009-02-04 17:23:24 +0300
commitb51912c91fcf7581cc7b4550f1bb96422809d9ed (patch)
tree3738e358e75088d300b289e013beccffe0af8e05 /fs/btrfs/disk-io.c
parent0279b4cd86685b5eea467c1b74ce94f0add2c0a3 (diff)
downloadlinux-b51912c91fcf7581cc7b4550f1bb96422809d9ed.tar.xz
Btrfs: async threads should try harder to find work
Tracing shows the delay between when an async thread goes to sleep and when more work is added is often very short. This commit adds a little bit of delay and extra checking to the code right before we schedule out. It allows more work to be added to the worker without requiring notifications from other procs. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 7feac5a475e9..9c3810047976 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1679,6 +1679,8 @@ struct btrfs_root *open_ctree(struct super_block *sb,
* low idle thresh
*/
fs_info->endio_workers.idle_thresh = 4;
+ fs_info->endio_meta_workers.idle_thresh = 4;
+
fs_info->endio_write_workers.idle_thresh = 64;
fs_info->endio_meta_write_workers.idle_thresh = 64;