On Sat, Oct 23, 2010 at 04:40:14PM -0400, Theodore Ts'o wrote: > This set of patches passes xfstests for both 1k and 4k block sizes. For > streaming I/O writes, it reduces the number of block I/O queue > submissions by a factor of 1024 in the ideal case. (i.e., instead of > submitting 4k requests at a time, we can now submit up to 512k writes at > a time, a 128 factor of improvement.) Sigh, this paragraph isn't quite right. Let me reword: This set of patches passes xfstests for both 1k and 4k block sizes. For streaming I/O writes, it reduces the number of block I/O queue submissions by a factor of 128 in the ideal case. (i.e., instead of submitting 4k requests at a time, we can now submit up to 512k writes at a time.) - Ted -- 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