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ROCKPro64 - Wo stehen wir?

ROCKPro64
  • Ich habe ja auf dem Image 0.6.52, das Erste wo der PCIe-Slot lebt, den Mainline-Kernel 4.17.0-rc6-1019 vom Kamil installiert.

    rock64@rockpro64:~$ uname -a
    Linux rockpro64 4.17.0-rc6-1019-ayufan-gfafc3e1c913f #1 SMP PREEMPT Tue Jun 12 19:06:59 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux
    

    Der läuft jetzt seit

    rock64@rockpro64:~$ uptime
    09:34:38 up 6 days, 20:15,  2 users,  load average: 0,15, 0,05, 0,01
    

    Darf man aber nicht neustarten im Moment, dann kann es nämlich sein das man das x-mal wiederholen muss bis er irgendwann mal vernünftig läuft!

    Hardware

    Samsung 960 EVO 250GB m.2

    Disk /dev/nvme0n1: 232,9 GiB, 250059350016 bytes, 488397168 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    

    32 GB SD-Karte

    Disk /dev/mmcblk0: 29,7 GiB, 31914983424 bytes, 62333952 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: gpt
    Disk identifier: 298096AF-4287-4988-B53A-24CDE27C1C8D
    

    und

    • UART2-Adpater
    • USB2-Tastatur
    • HDMI
    • LAN

    Was nicht so klappt

    • LAN - nur 52MB/s
    • USB3 - Probleme bei der Festplattenerkennung
    • PCIe - nur x2
    • GPU - abgeschaltet

    Stand der Entwicklung

    Man versucht wohl Kamil davon zu überzeugen, seinen Kernel für die Mitarbeit weiterer Entwickler zu öffnen.

    21/06/18 08:02
    <tkaiser> ayufan: A couple of people think about relying on your kernel branch for a bunch of RK devices now. So it matters whether you're willing to accept PRs adding support for other devices or not (most probably then taken by RK themselves and added to their internal repo)
    21/06/18 08:03
    <ayufan> oh 🙂
    21/06/18 08:03
    <ayufan> tkaiser: I’m happy to move this repo into one that can be contributed by anyone, and give access controls to more poeple

    Sieht ja gut aus.

    Und noch ein paar Info's vom Chef 🙂

    Zweiter Batch

    (18:28:39) tllim: second batch ROCKPro64 should be roll out from factory before or on July 12.

    LPDDR4

    (18:29:59) tllim: the LPDDR4 can push up to PC-2133 for RK folks input and they will releaes the parameter in few weeks time
    (19:08:50) ayufan: tllim: is the 2133 also on current batch?
    (19:09:56) tllim: yes, the ROCKpro64 first and second batch LPDDR4 is PC-3200 type.

    OpenGL

    (18:30:59) tllim: the recent release openGL v3 driver also has significant performance improvement

    Wollen wir hoffen, das wieder was Bewegung in die Sache kommt. Kamil war wohl letzte Woche beruflich unterwegs. Würde der Plattform sicher gut tuen, wenn mehrere Entwickler mitarbeiten würden.

  • Kernel 6.0.0-rc7

    ROCKPro64 rockpro64
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    FrankMF
    Geht [image: 1664296204344-fb1bc176-5c57-48bf-8d75-1834b5548552-grafik.png] https://github.com/ayufan-rock64/linux-mainline-kernel/releases Altes Image installieren, die zwei .deb Files vom Kamil herunterladen. dpkg -i *.deb und neustarten. Und hochgezogen auf Debian Bullseye root@rockpro64:~# cat /etc/debian_version 11.5
  • ROCKPro WLan Modul

    Verschoben ROCKPro64 rockpro64
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  • ROCKPro64 v2.1 - Und wieder mal einer der Ersten? ;)

    ROCKPro64 rockpro64
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    FrankMF
    Ein paar Hardware Änderungen Weiße LED gedimmt [image: 1532529766713-img_20180725_151430_ergebnis-resized.jpg] Neue LED grün, neben dem Eingang der Stromversorgung [image: 1532529865409-img_20180725_151421_ge%C3%A4ndert-resized.jpg]
  • Image 0.6.57 - NVMe paar Notizen

    Verschoben Archiv rockpro64
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  • ROCKPro64 Übersicht - was geht? **veraltet**

    Angeheftet Verschoben Archiv rockpro64
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    FrankMF
    Ich sehe gerade, das könnte hier auch mal neu gemacht werden.
  • ROCKPro64 wieder vorbestellbar

    ROCKPro64 rockpro64
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    FrankMF
    Meine Lieferung ist unterwegs Hello Mr. Frank Mankel, Order 62068 just shipped on July 18, 2018 from Shenzhen transit to Hong Kong DHL.
  • [HOWTO] ROCKPro64 - Boot

    Verschoben Hardware howto hardware rockpro64
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    FrankMF
    Das Problem sollte mit Kernel 4.19.0-rc4-1069-ayufan behoben sein.
  • stretch-minimal-rockpro64

    Verschoben Linux rockpro64
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    FrankMF
    Mal ein Test was der Speicher so kann. rock64@rockpro64:~/tinymembench$ ./tinymembench tinymembench v0.4.9 (simple benchmark for memory throughput and latency) ========================================================================== == Memory bandwidth tests == == == == Note 1: 1MB = 1000000 bytes == == Note 2: Results for 'copy' tests show how many bytes can be == == copied per second (adding together read and writen == == bytes would have provided twice higher numbers) == == Note 3: 2-pass copy means that we are using a small temporary buffer == == to first fetch data into it, and only then write it to the == == destination (source -> L1 cache, L1 cache -> destination) == == Note 4: If sample standard deviation exceeds 0.1%, it is shown in == == brackets == ========================================================================== C copy backwards : 2812.7 MB/s C copy backwards (32 byte blocks) : 2811.9 MB/s C copy backwards (64 byte blocks) : 2632.8 MB/s C copy : 2667.2 MB/s C copy prefetched (32 bytes step) : 2633.5 MB/s C copy prefetched (64 bytes step) : 2640.8 MB/s C 2-pass copy : 2509.8 MB/s C 2-pass copy prefetched (32 bytes step) : 2431.6 MB/s C 2-pass copy prefetched (64 bytes step) : 2424.1 MB/s C fill : 4887.7 MB/s (0.5%) C fill (shuffle within 16 byte blocks) : 4883.0 MB/s C fill (shuffle within 32 byte blocks) : 4889.3 MB/s C fill (shuffle within 64 byte blocks) : 4889.2 MB/s --- standard memcpy : 2807.3 MB/s standard memset : 4890.4 MB/s (0.3%) --- NEON LDP/STP copy : 2803.7 MB/s NEON LDP/STP copy pldl2strm (32 bytes step) : 2802.1 MB/s NEON LDP/STP copy pldl2strm (64 bytes step) : 2800.7 MB/s NEON LDP/STP copy pldl1keep (32 bytes step) : 2745.5 MB/s NEON LDP/STP copy pldl1keep (64 bytes step) : 2745.8 MB/s NEON LD1/ST1 copy : 2801.9 MB/s NEON STP fill : 4888.9 MB/s (0.3%) NEON STNP fill : 4850.1 MB/s ARM LDP/STP copy : 2803.8 MB/s ARM STP fill : 4893.0 MB/s (0.5%) ARM STNP fill : 4851.7 MB/s ========================================================================== == Framebuffer read tests. == == == == Many ARM devices use a part of the system memory as the framebuffer, == == typically mapped as uncached but with write-combining enabled. == == Writes to such framebuffers are quite fast, but reads are much == == slower and very sensitive to the alignment and the selection of == == CPU instructions which are used for accessing memory. == == == == Many x86 systems allocate the framebuffer in the GPU memory, == == accessible for the CPU via a relatively slow PCI-E bus. Moreover, == == PCI-E is asymmetric and handles reads a lot worse than writes. == == == == If uncached framebuffer reads are reasonably fast (at least 100 MB/s == == or preferably >300 MB/s), then using the shadow framebuffer layer == == is not necessary in Xorg DDX drivers, resulting in a nice overall == == performance improvement. For example, the xf86-video-fbturbo DDX == == uses this trick. == ========================================================================== NEON LDP/STP copy (from framebuffer) : 602.5 MB/s NEON LDP/STP 2-pass copy (from framebuffer) : 551.6 MB/s NEON LD1/ST1 copy (from framebuffer) : 667.1 MB/s NEON LD1/ST1 2-pass copy (from framebuffer) : 605.6 MB/s ARM LDP/STP copy (from framebuffer) : 445.3 MB/s ARM LDP/STP 2-pass copy (from framebuffer) : 428.8 MB/s ========================================================================== == Memory latency test == == == == Average time is measured for random memory accesses in the buffers == == of different sizes. The larger is the buffer, the more significant == == are relative contributions of TLB, L1/L2 cache misses and SDRAM == == accesses. For extremely large buffer sizes we are expecting to see == == page table walk with several requests to SDRAM for almost every == == memory access (though 64MiB is not nearly large enough to experience == == this effect to its fullest). == == == == Note 1: All the numbers are representing extra time, which needs to == == be added to L1 cache latency. The cycle timings for L1 cache == == latency can be usually found in the processor documentation. == == Note 2: Dual random read means that we are simultaneously performing == == two independent memory accesses at a time. In the case if == == the memory subsystem can't handle multiple outstanding == == requests, dual random read has the same timings as two == == single reads performed one after another. == ========================================================================== block size : single random read / dual random read 1024 : 0.0 ns / 0.0 ns 2048 : 0.0 ns / 0.0 ns 4096 : 0.0 ns / 0.0 ns 8192 : 0.0 ns / 0.0 ns 16384 : 0.0 ns / 0.0 ns 32768 : 0.0 ns / 0.0 ns 65536 : 4.5 ns / 7.2 ns 131072 : 6.8 ns / 9.7 ns 262144 : 9.8 ns / 12.8 ns 524288 : 11.4 ns / 14.7 ns 1048576 : 16.0 ns / 22.6 ns 2097152 : 114.0 ns / 175.3 ns 4194304 : 161.7 ns / 219.9 ns 8388608 : 190.7 ns / 241.5 ns 16777216 : 205.3 ns / 250.5 ns 33554432 : 212.9 ns / 255.5 ns 67108864 : 222.3 ns / 271.1 ns