Sipeed LM3H / Pi3H / LonganPi 3H

[geerlingguy]

Basic information

• Board URL (official): https://wiki.sipeed.com/hardware/en/longan/h618/lpi3h/1_intro.html
• Board purchased from: Amazon (affiliate link)
• Board purchase date: June 6, 2025
• Board specs (as tested): 4GB RAM / 32GB eMMC
• Board price (as tested): $46

Three LM3H boards were provided with a Sipeed NanoCluster review kit, but I bought a fourth from Amazon to test, as I wanted to test apart from the full cluster setup (especially with regard to power consumption).

Linux/system information

# output of `fastfetch`
PASTE_HERE

# output of `uname -a`
PASTE_HERE

Benchmark results

CPU

• Geekbench 6: (TODO single / TODO multi - PASTE_URL)
• TODO Gflops (geerlingguy/top500-benchmark HPL result)

Power

• Idle power draw (at wall): TODO W
• Maximum simulated power draw (stress-ng --matrix 0): TODO W
• During Geekbench multicore benchmark: TODO W
• During top500 HPL benchmark: TODO W

Disk

MANUFACTURER_AND_MODEL_OF_DISK_HERE

Benchmark	Result
iozone 4K random read	TODO MB/s
iozone 4K random write	TODO MB/s
iozone 1M random read	TODO MB/s
iozone 1M random write	TODO MB/s
iozone 1M sequential read	TODO MB/s
iozone 1M sequential write	TODO MB/s

wget https://raw.githubusercontent.com/geerlingguy/pi-cluster/master/benchmarks/disk-benchmark.sh
chmod +x disk-benchmark.sh
sudo MOUNT_PATH=/ TEST_SIZE=1g ./disk-benchmark.sh

Run benchmark on any attached storage device (e.g. eMMC, microSD, NVMe, SATA) and add results under an additional heading.

Also consider running PiBenchmarks.com script.

Network

iperf3 results:

• iperf3 -c $SERVER_IP: TODO Mbps
• iperf3 -c $SERVER_IP --reverse: TODO Mbps
• iperf3 -c $SERVER_IP --bidir: TODO Mbps up, TODO Mbps down

(Be sure to test all interfaces, noting any that are non-functional.)

GPU

glmark2

glmark2-es2 / glmark2-es2-wayland results:

1. Install glmark2-es2 with `sudo apt install -y glmark2-es2`
2. Run `glmark2-es2` (with `DISPLAY=:0` prepended if running over SSH)
3. Replace this block of text with the results.

vkmark

vkmark results:

1. Install vkmark with `sudo apt install -y vkmark`
2. Run `vkmark` (with `DISPLAY=:0` prepended if running over SSH)
3. Replace this block of text with the results.

Note: vkmark needs to be compiled from source on Debian 12 and earlier.

GravityMark

GravityMark results:

1. Download the latest version of GravityMark: https://gravitymark.tellusim.com
2. Run `chmod +x [downloaded_filename].run`
3. Run `sudo ./[downloaded_filename].run` and press `y` to accept the terms.
4. Open the link it prints, and run the Benchmark defaults, changing to 720p resolution and 50,000 asteroids.

Note: These benchmarks require an active display on the device. Not all devices may be able to run glmark2-es2, so in that case, make a note and move on!

Ollama

ollama LLM model inference results:

# Install ollama
curl -fsSL https://ollama.com/install.sh | sh

# Download some models
ollama pull llama3.2:3b && ollama pull llama3.1:8b

# Run benchmark
git clone https://github.com/geerlingguy/ollama-benchmark.git
cd ollama-benchmark
./obench.sh

Note that Ollama will run on the CPU if no valid GPU / drivers are present. Be sure to note whether Ollama runs on the CPU, GPU, or a dedicated NPU.

TODO: See this issue for discussion about a full suite of standardized GPU benchmarks.

Memory

tinymembench results:

Click to expand memory benchmark result

# Run the two commands below, then replace this code block with the full result.
git clone https://github.com/rojaster/tinymembench.git && cd tinymembench && make
./tinymembench

sbc-bench results

Run sbc-bench and paste a link to the results here:

wget https://raw.githubusercontent.com/ThomasKaiser/sbc-bench/master/sbc-bench.sh
sudo /bin/bash ./sbc-bench.sh -r

Phoronix Test Suite

Results from pi-general-benchmark.sh:

• pts/encode-mp3: TODO sec
• pts/x264 4K: TODO fps
• pts/x264 1080p: TODO fps
• pts/phpbench: TODO
• pts/build-linux-kernel (defconfig): TODO sec

[cduk]

Is testing finished yet?

[mjonss]

Just got a nanocluster with 7 x LM3H, and pasting the results from
fastfetch:

        _,met$$$$$gg.          sipeed@lpi3h-19ac
     ,g$$$$$$$$$$$$$$$P.       -----------------
   ,g$$P""       """Y$$.".     OS: Debian GNU/Linux 13 (trixie) aarch64
  ,$$P'              `$$$.     Host: Sipeed Longan Pi 3H
',$$P       ,ggs.     `$$b:    Kernel: Linux 6.7.0-rc3+
`d$$'     ,$P"'   .    $$$     Uptime: 56 mins
 $$P      d$'     ,    $$P     Packages: 681 (dpkg)
 $$:      $$.   -    ,d$$'     Shell: bash 5.2.15
 $$;      Y$b._   _,d$P'       Cursor: Adwaita
 Y$$.    `.`"Y$$$$P"'          Terminal: /dev/pts/0
 `$$b      "-.__               CPU: longan-module-3h (4) @ 1.42 GHz
  `Y$$b                        GPU: Mesa/X.org llvmpipe (LLVM 15.0.6, 128 bits)
   `Y$$.                       Memory: 458.63 MiB / 3.85 GiB (12%)
     `$$b.                     Swap: Disabled
       `Y$$b.                  Disk (/): 2.12 GiB / 28.60 GiB (7%) - ext4
         `"Y$b._               Local IP (end1): 192.168.8.135/24
             `""""             Locale: C

uname -a:

Linux lpi3h-19ac 6.7.0-rc3+ #745 SMP PREEMPT Fri Jul 18 12:04:54 CST 2025 aarch64 GNU/Linux

[mjonss]

disk benchmark:

| Benchmark                  | Result |
| -------------------------- | ------ |
| iozone 4K random read      | 23.12 MB/s |
| iozone 4K random write     | 17.94 MB/s |
| iozone 1M random read      | 90.09 MB/s |
| iozone 1M random write     | 86.94 MB/s |
| iozone 1M sequential read  | 90.09 MB/s |
| iozone 1M sequential write | 89.69 MB/s |

[azuer88]

Got most of the peripherals to work (thanks mostly to claude ai):

https://github.com/azuer88/LonganPi-3H-Kernel_v6.18.19