I happen to be doing SSD benchmarks myself and if I read your questions correctly the following scenarios exist: 1. Performance of a fresh drive or a drive after a secure erase. 2. Performance after the disks memory has been completely written to. I loose track of the exact wording but I want to say at this point a disk has to do a read modify write vs just doing a write. I went with using fio to do full disk sequential writes and also setting it to a timed run to make sure it did multiple sets of writes. Thanks, Roger On Thu, Oct 3, 2013 at 3:31 PM, Brian L. <brianclam@xxxxxxxxx> wrote: > For benchmarking SSD drives, I was told that we should precondition > our drives to get more accurate real world reading. > > I was wondering if anyone is using fio itself to precondition ssd > drives or use a different script to populate random data on the > drives? > > Thanks in advance. > > Brian L. > -- > To unsubscribe from this list: send the line "unsubscribe fio" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html