Hi, I see many literatures mentioned this, but I have never seen any one explains it in detail.(Although this link exposed the original story: http://lkml.indiana.edu/hypermail//linux/kernel/0107.1/0364.html) "Journal mode: This mode is the slowest except when data needs to be read from and written to disk at the same time where it outperform all others mode." Since this is pretty counter-intuitive, I believe many people are not aware about the root cause, thus I won't be the last one to ask this same question. Can any one kindly explain it so as to make it more clear? Thank you! Regards Jidong _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users