On Fri, Oct 7, 2011 at 5:00 PM, Theodore Tso <tytso@xxxxxxx> wrote: > > On Oct 7, 2011, at 7:40 AM, Kasatkin, Dmitry wrote: > > For large file system to run fsck takes a while.. > One of the solution to decrease checking time is just to check only > for multiply-claimed blocks... > Could you please tell how many times faster it will be comparing just > to running fsck as it is… > > In order to guard against multiply claimed blocks, you will need to complete > fsck pass 1. > You can time fsck pass1 for yourself by running e2fsck with the -tt option. > For ext3 pass 1 was approximately 70% of the total run time. With ext4 the > time to run pass 1 was significantly reduced. Yes... It is really noticeable.. I assume it is achieved not by compromising check quality... What is the reason? Thanks > - Ted > -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html