Bargain 1G Rock64

Just install with the default settings. I did not change anything.

Rock64 used a 1TB 2.5" WD USB 3.0 hard drive. Powered by USB.

Read from the rock64 directly on rock64 to check raw speed

root@rock64:~# dd if=/dev/sda of=/dev/null bs=4M count=512
512+0 records in
512+0 records out
2147483648 bytes (2.1 GB, 2.0 GiB) copied, 18.5152 s, 116 MB/s

mount rock64's NFS from another machine (dreamplug with debian), operate in the mount folder.

root@Debian:/mnt# cd tmp
root@Debian:/mnt/tmp# ls
.  ..  bigfile
root@Debian:/mnt/tmp# dd if=bigfile of=/dev/null bs=4M
512+0 records in
512+0 records out
2147483648 bytes (2.1 GB, 2.0 GiB) copied, 40.6479 s, 52.8 MB/s
root@Debian:/mnt/tmp# dd if=/dev/zero of=bigfile2 bs=4M count=512
512+0 records in
512+0 records out
2147483648 bytes (2.1 GB, 2.0 GiB) copied, 49.072 s, 43.8 MB/s

For Dockstar, it is limited by the USB 2.0. The raw speed will be less than 34MB/s



Edited 2 time(s). Last edit at 12/21/2019 09:19AM by daviddyer.

Thank you David. But, the above information is the performance for a local HDD and not NFS connection.

/mnt is the NFS...

BTW, if I mount the rock64 NFS from an Intel i3 machine, the read/write speed is better. About 7x /6x MB/s

daviddyer Wrote:
-------------------------------------------------------
> /mnt is the NFS...
>
> BTW, if I mount the rock64 NFS from an Intel i3 machine, the read/write speed is better. About 7x /6x MB/s
>
That's what I would expect with default settings on both client/server NFS sides.

With a USB3 memory stick plugged into a USB2 port on a Seagate Dockstar and after some tweaks, I could easily get about 20 MBps R/W throughput sharing through NFS mounted on any of my Linux desktop computers.