From: Jan Kara Date: Tue, 13 Nov 2007 18:59:33 +0000 (+0100) Subject: [PATCH] ocfs2: Remove expensive bitmap scanning X-Git-Tag: v2.6.24-rc4~83^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a58c3ef22d6e5b84ff651a7d27ae2cbea9f9870;p=pandora-kernel.git [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 Signed-off-by: Mark Fasheh --- 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 Reading git-diff-tree failed