Hi, > The speed improvement for dumping large databases through samba with > strict allocate = yes to BTRFS was amazing. It reduced a 1 hour dump down > to 20 minutes. What you want btrfs to do is to allocate a file of fixed-size on disk in advance, without knowing how large the file will be after compression (which is the only thing of interest to btrfs). So the whole idea doesn't make a lot of sence. Sure, you could generate a 50gb file filled with zeros, but once you put real data in it, it will fragment a lot - probably even more than the file which was created without strict allocate. Regards -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
