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authorJan Kara <jack@suse.cz>2007-11-13 19:59:33 +0100
committerMark Fasheh <mark.fasheh@oracle.com>2007-11-27 16:47:02 -0800
commit5a58c3ef22d6e5b84ff651a7d27ae2cbea9f9870 (patch)
tree07d7d903b1a3d47b432ce36987e021772332d9f7 /fs/Kconfig
parenta46043e08f300982c51df317e2f8fb919dedadcd (diff)
downloadlwn-5a58c3ef22d6e5b84ff651a7d27ae2cbea9f9870.tar.gz
lwn-5a58c3ef22d6e5b84ff651a7d27ae2cbea9f9870.zip
[PATCH] ocfs2: Remove expensive bitmap scanning
Enable expensive bitmap scanning only if DEBUG option is enabled. The bitmap scanning quite loads the CPU and on my machine the write throughput of dd if=/dev/zero of=/ocfs2/file bs=1M count=500 conv=sync improves from 37 MB/s to 45.4 MB/s in local mode... Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/Kconfig')
-rw-r--r--fs/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index 429a00228507..635f3e286ad8 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -459,6 +459,15 @@ config OCFS2_DEBUG_MASKLOG
This option will enlarge your kernel, but it allows debugging of
ocfs2 filesystem issues.
+config OCFS2_DEBUG_FS
+ bool "OCFS2 expensive checks"
+ depends on OCFS2_FS
+ default n
+ help
+ This option will enable expensive consistency checks. Enable
+ this option for debugging only as it is likely to decrease
+ performance of the filesystem.
+
config MINIX_FS
tristate "Minix fs support"
help