4 ms·

That looks pretty good too, was wondering how X-Gene fares. In the meantime, there's still quite a gap between cheap phone SOCs and server boards. Nothing real

That looks pretty good too, was wondering how X-Gene fares. In the meantime, there's still quite a gap between cheap phone SOCs and server boards. Nothing really in the middle, desktop/laptop space - 2 DIMM slots and a modest set of SATA/PCIe ports.

rwmj 11y ago
The X-gene 1 is a 3 year old design in 40nm [1]. It's not blazingly fast, but it's a reliable workhorse that boots the upstream kernel out of the box. The AMD A1100 is much newer, with the excellent superscalar Cortex-A57 core (but only 4 of them). I believe that's the space that the Huskyboard and Cello are meant to occupy, although you may well think the price -- $300 just for the board -- is not exactly in that gap, and I'd agree. I have the Cello on order, and will blog about it once I receive it, expected in a month or two. [1] http://www.hotchips.org/wp-content/uploads/hc_archives/hc26/HC26-11-day1-epub/HC26.11-4-ARM-Servers-epub/HC26.11.430-X-Gene-Singh-AppMicro-HotChips-2014-v5.pdf http://www.hotchips.org/wp-content/uploads/hc_archives/hc26/...
- hyc_symas 11y ago
  Was reading the dmesg listings on your blog. Seems that X-gene 1 doesn't have AES instructions, is that correct? I'm in the midst of optimizing the CryptoNight hash algorithm for ARMv8. Fortunately the Cortex-A53 in the RK3368 has AES instructions otherwise it would be pretty dismal.
  - rwmj 11y ago
    How to find out? /proc/cpuinfo says: Features : fp asimd evtstrm The X-gene 1 has a custom core developed by APM (called Potenza). Edit: If you mail me (_source!_) code to rjones redhat com I will run it.
    - hyc_symas 11y ago
      Willdo, when I have something ready to test. Thanks! Here's the rk3368: geekbox@geekbox:/home/software/bitmonero/build$ cat /proc/cpuinfo processor : 0 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: AArch64 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 3 (and so on for the other 7 cores)

rwmj 11y ago

The X-gene 1 is a 3 year old design in 40nm [1]. It's not blazingly fast, but it's a reliable workhorse that boots the upstream kernel out of the box. The AMD A1100 is much newer, with the excellent superscalar Cortex-A57 core (but only 4 of them). I believe that's the space that the Huskyboard and Cello are meant to occupy, although you may well think the price -- $300 just for the board -- is not exactly in that gap, and I'd agree. I have the Cello on order, and will blog about it once I receive it, expected in a month or two. [1] http://www.hotchips.org/wp-content/uploads/hc_archives/hc26/HC26-11-day1-epub/HC26.11-4-ARM-Servers-epub/HC26.11.430-X-Gene-Singh-AppMicro-HotChips-2014-v5.pdf http://www.hotchips.org/wp-content/uploads/hc_archives/hc26/...

hyc_symas 11y ago
Was reading the dmesg listings on your blog. Seems that X-gene 1 doesn't have AES instructions, is that correct? I'm in the midst of optimizing the CryptoNight hash algorithm for ARMv8. Fortunately the Cortex-A53 in the RK3368 has AES instructions otherwise it would be pretty dismal.
- rwmj 11y ago
  How to find out? /proc/cpuinfo says: Features : fp asimd evtstrm The X-gene 1 has a custom core developed by APM (called Potenza). Edit: If you mail me (_source!_) code to rjones redhat com I will run it.
  - hyc_symas 11y ago
    Willdo, when I have something ready to test. Thanks! Here's the rk3368: geekbox@geekbox:/home/software/bitmonero/build$ cat /proc/cpuinfo processor : 0 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: AArch64 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 3 (and so on for the other 7 cores)