Theodore Tso wrote: > It depends on how much metadata updates you do --- I would definitely > recommend using the noatime mount option, but probably somewhere > between 1.2x and 2x. Basically, each time you update some part of the > metadata, it will result in the block being written to the journal, > before it is ultimately written to the primary location on disk. So > the number of writes will go up by 2x for metadata blocks. So the big > question is the ratio between metadata updates and data block updates. Thanks. This doesn't sound so bad. This 1.2x to 2x is for default data=ordered mode and data=journal would be +1, right? What about the data=writeback, is this same or better (as for number of writes)? Frantisek
