On Wed, 17 Feb 2010 16:46:19 +0100, Gaëtan Podevijn <gpodevij@xxxxxxxxx> wrote: > Hello, > > Reading this http://web.mit.edu/tytso/www/linux/ext2intro.html I > understand that ext2 preallocates 8 blocks when a writing data to a > file. Ext3 uses the windows reservations method, but is that ext3 also > preallocates 8 blocks when writing data ? > > Moreover, this page > http://kernelnewbies.org/Ext4#head-b2148d2a96d22a1bd7e376e6c08e4a38d08fb157 > explains that ext3 allocates one block at a time and ext4 uses > multiblock allocation that is, allocates many block in a single system > call. > > What is the difference between preallocation on ext2 (and ext3 ?) and mballoc ? > > You can find mballoc details at http://ols.fedoraproject.org/OLS/Reprints-2008/kumar-reprint.pdf -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
