sftf wrote: > Hi! > IMHO this test is not 100% correct. > ext3 | data=writeback > ext4 | data=writeback,extents,delalloc > xfs | defaults is ordered ! > > So you have compared ext's in writeback (which fastest mode) vs xfs in ordered. Actually xfs's default (only) mode is more like writeback than ordered. So that's a fair comparison. I bet it is xfs's barriers that hurt it, though - while they are pretty much required on a single disk with a volatile write cache, I think xfs's barrier implementation hurts it more than barriers for ext* -Eric - 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
