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Linux 5.17 Adds Support For "The First Usable, Low-Cost RISC-V Platform"

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  • mbohun
    replied

    HiFive Unmatched; running Ubuntu 21.10

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  • mbohun
    replied
    Originally posted by Zoll View Post
    Any performance comparisons with any Raspberry PI? Is this akin to Raspberry PI zero? or RPi2/3 ?
    according to some previous phoronix benchmarks it was similar to rpi3

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  • Zoll
    replied
    Any performance comparisons with any Raspberry PI? Is this akin to Raspberry PI zero? or RPi2/3 ?

    Leave a comment:


  • Quackdoc
    replied
    Originally posted by Mike Frett View Post
    And what's wrong with a Raspberry Pi? It's more than usable and costs less.
    it isn't risc-v that's what. I want risc-v for the sake of having it to work on.

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  • Mike Frett
    replied
    And what's wrong with a Raspberry Pi? It's more than usable and costs less.

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  • Quackdoc
    replied
    I just want something in the ballpark of a raspi soon maybe

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  • elatllat
    replied
    Originally posted by Alexmitter View Post
    ...aes-xts 512b 18.9 MiB/s 18.8 MiB/s...
    Thanks, clearly not targeted at fast encrypted storage.
    https://forum.odroid.com/viewtopic.php?f=149&t=30103


    Originally posted by Alexmitter View Post
    ...there is no /sys/devices/system/cpu/vulnerabilities/....
    Likely they just disabled it
    Code:
    zgrep GENERIC_CPU_VULNERABILITIES /proc/config.gz

    Originally posted by Alexmitter View Post
    ...compiling 5.16 on it with either the GCC or LLVM on this ubuntu version crashes at compilation...
    Looks like some over complicated build tools are used to make the kernel https://github.com/sifive/freedom-u-sdk
    maybe you can sift out the minimal native build steps from there.

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  • Alexmitter
    replied
    Originally posted by elatllat View Post
    Code:
    cryptsetup benchmark
    # Tests are approximate using memory only (no storage IO).
    PBKDF2-sha1 85222 iterations per second for 256-bit key
    PBKDF2-sha256 148607 iterations per second for 256-bit key
    PBKDF2-sha512 134570 iterations per second for 256-bit key
    PBKDF2-ripemd160 113384 iterations per second for 256-bit key
    PBKDF2-whirlpool 38235 iterations per second for 256-bit key
    argon2i 4 iterations, 123144 memory, 4 parallel threads (CPUs) for 256-bit key (requested 2000 ms time)
    argon2id 4 iterations, 124528 memory, 4 parallel threads (CPUs) for 256-bit key (requested 2000 ms time)
    # Algorithm | Key | Encryption | Decryption
    aes-cbc 128b 20.7 MiB/s 22.4 MiB/s
    serpent-cbc 128b 14.4 MiB/s 16.1 MiB/s
    twofish-cbc 128b 21.9 MiB/s 25.0 MiB/s
    aes-cbc 256b 17.3 MiB/s 17.8 MiB/s
    serpent-cbc 256b 15.3 MiB/s 16.1 MiB/s
    twofish-cbc 256b 23.0 MiB/s 25.0 MiB/s
    aes-xts 256b 23.1 MiB/s 24.0 MiB/s
    serpent-xts 256b 15.0 MiB/s 16.2 MiB/s
    twofish-xts 256b 23.6 MiB/s 25.0 MiB/s
    aes-xts 512b 18.9 MiB/s 18.8 MiB/s
    serpent-xts 512b 15.8 MiB/s 16.2 MiB/s
    twofish-xts 512b 25.0 MiB/s 25.1 MiB/s

    Originally posted by elatllat View Post
    Code:
    uname -r && cd /sys/devices/system/cpu/vulnerabilities/ && grep . *
    I run kernel 5.13.0-1007-generic(compiling 5.16 on it with either the GCC or LLVM on this ubuntu version crashes at compilation, so for now I am stuck on that kernel) and there is no /sys/devices/system/cpu/vulnerabilities/

    Don't get me wrong, any modern Raspberry Pi will outperform it CPU wise, but using it does not feel bad, gnome is nice and responsive on it though thats more for the show off as I usually run the machine headless.

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  • tuxd3v
    replied
    Originally posted by CochainComplex View Post
    I would really love to own a modern PPC architecture powerd device but Raptor Products are still out of my financial reach and old G5 Macs are getting to old for a good Performance/Watt ratio. Frankly said I don't want to waste 500W to have a raspberry pi 4 equivalent performance.
    I am also eyeing a sbc or a laptop with PPC on it
    if you scroll down to the Section:
    Video of our last talks – October and November 2021
    You will see there 2 presentations,
    one for the laptop donation campaign( at the moment they are facing components shortage.. pandemic.. ), and the other for a new PPC sbc board "DJango" both will run Debian..

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  • CochainComplex
    replied
    Thx. Ok not bad, comparable to an oc4
    so 175$ for a new early adopter plattform in "consumer" fields is quite good.
    I'm really tempted to but missing rust support (at least yet) makes it difficult for a plain webbrowsing/multimedia box just for fun...
    Well I will think about it. Its time to support x86 alternatives.

    I would really love to own a modern PPC architecture powerd device but Raptor Products are still out of my financial reach and old G5 Macs are getting to old for a good Performance/Watt ratio. Frankly said I don't want to waste 500W to have a raspberry pi 4 equivalent performance.

    It seems this can be a quit nice compromise - or lets rephrase it : good starting point I guess.

    Leave a comment:

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