On 02/08/2013 11:50 AM, Jonathan Aquilina wrote: > What would be the best way to bench mark these devices be it the sata > ssd's or pcie. I have a sata based ssd in my netbook and its quite zippy.
Joe should have some nice suggestions here, but ultimately the best way to benchmark it for OPs case is going to be with real applications. Traditional I/O testers include: - dd - bonnie++ - iozone - hdparm But the issue with all of these is that, without working with large amounts of data and over long periods of time, the real "differences" in the SSD flash-translation layers doesn't come out. If you are set on synthetically testing it, my suggestion is to first fill the SSD half or more than half with a mixture of random and sequential data. Then, test sequential and random data, both block-aligned and otherwise, both at the same time and by themselves. The best SSD solutions out there will continue to perform even as they approach filled and even for heavy random, unaligned, multi-stream accesses. That's the real magic of the FTL at work, and is why these controller companies sell for many millions of dollars. Best, ellis _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
