600? I've heard 1.5GBps reported. On 1/5/10, Eric D. Mudama <edmud...@bounceswoosh.org> wrote: > On Mon, Jan 4 at 16:43, Wes Felter wrote: >>Eric D. Mudama wrote: >> >>>I am not convinced that a general purpose CPU, running other software >>>in parallel, will be able to be timely and responsive enough to >>>maximize bandwidth in an SSD controller without specialized hardware >>>support. >> >>Fusion-io would seem to be a counter-example, since it uses a fairly >>simple controller (I guess the controller still performs ECC and >>maybe XOR) and the driver eats a whole x86 core. The result is very >>high performance. >> >>Wes Felter > > I see what you're saying, but it isn't obvious (to me) how well > they're using all the hardware at hand. 2GB/s of bandwidth over their > PCI-e link and what looks like a TON of NAND, with a nearly-dedicated > x86 core... resuting in 600MB/s or something like that? > > While the number is very good for NAND flash SSDs, it seems like a TON > of horsepower going to waste, and they still have a large onboard > controller/FPGA. I guess enough CPU can make the units faster, but > i'm just not sold. > > -- > Eric D. Mudama > edmud...@mail.bounceswoosh.org > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
-- Regards, Andrey _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
