Just a follow-up, for anyone wondering: The system worked flawlessly. And, as expected, a SATA-3 SSD is not fast enough to store a dual, 200 MSps (6.4 Gbps x 2) stream from an X310 on the fly, but saving files to RAM works great for now.
By the way, a quick advice for everyone: always check the motherboard manual about how many PCIe lanes are active in a given slot, even if it's a full size one. It happened to me that a x4, full-size slot only allowed me to use two lanes because I had a WiFi card installed on another 1x, small-form-factor slot. The odd thing was that two PCIe 3.0 lanes give a theoretical bandwidth of around 1600 MB/s, which is roughly what I needed for my streams to work; but because the actual performance of the system was just a bit slower, fewer than 1% of packages were dropped, which was annoying until I realized where I had messed up. Best regards, Leo On Wed, Dec 6, 2017 at 11:13 AM Leandro Echevarría <leoechevar...@gmail.com> wrote: > Hello Neel, > > We have not bought it yet, as the project is currently on hold. I'll let > you guys know how it works out if we do. > > About the SSDs: I was not considering them important because given the > nature of the work, we would be fine with saving small bursts on a buffer > in SDRAM. But if we did want to store on disk on the fly, wouldn't a > standard SATA3 SSD still not be enough? SATA3's limit is 6 Gbps, I think > it'd be necessary to jump to an M.2 NVMe or a standard PCIe drive, right? > > Regards, > > Leo > > On Sat, Dec 2, 2017 at 11:58 AM Neel Pandeya <neel.pand...@ettus.com> > wrote: > >> Hello Leo: >> >> We have not tested the AMD Ryzen yet, but it seems like a system based on >> it should be powerful enough, as long as the clock rate were high enough, >> you have enough memory, and you use SSD disks. >> >> Did you end up buying the system? If so, how has it performed? >> >> --Neel Pandeya >> >> >> >> On 6 September 2017 at 06:33, Leandro Echevarría via USRP-users < >> usrp-users@lists.ettus.com> wrote: >> >>> Hey everybody, >>> >>> We're about to buy a new computer to work with an USRP X310, using dual >>> 10 Gbps SFP+ Ethernet connections through a PCIe card (we need to reach >>> full 200 MSps). I've seen at Ettus you "use a desktop computer with a >>> quadcore i7, 8+ GB of DDR3". >>> >>> We are planning on buying an AMD platform with a Ryzen 7 1700 processor. >>> Has anyone tested a setup like this on Ubuntu 16.04? I believe it should be >>> more than enough, but it'd be nice if you assure us so. >>> >>> Thanks! >>> >>> Leo >>> >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >>> >>
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