Hello I have an Archer C2 https://openwrt.org/toh/tp-link/archer_c2_ac750 with a connected ext4 usb drive. Write speeds using scp are 1-2.5MB/s, rsync is even slower.
Are these expected results or is there some configuration to optimize?
While that is a little slower that I would expect (but I'm not using mt7620 myself), it's not far below my guesstimated figures (based on my experiences with 400 MHz early ar71xx) either - so I wouldn't think there's much room for improvement (USB is a very CPU heavy protocol, combined with the encryption you're easily hitting the limits of a 580 MHz single core mips CPU).
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Indeed, I'd also expect it to be slightly faster but not by much. You need beefier hardware (ARM preferably) if you want better performance overall.
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Thanks for the reply. So if i wanted to make a tiny fileserver I should just go for more cpu then? Are there any powerful routers that would get good speeds?
Tinkering now with a little atom pc now to make as server maybe even owncloud but it's power consumption is nothing like a router.
By the way read speeds are exactly the same! 
RPI4 with at least 2G of RAM might be a viable option or Espressobin (native SATA)
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NextCloud runs quite well on an APU2/3C4.
Running it along with a half-dozen service jails under FreeBSD and ZFS, mirrored SSDs. Draws 7-10 W from mains. Iād imagine good performance under Linux/OpenWrt as well.
Newer x86_64 / amd64 boards are also available.
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Thanks for the suggestions!
At the end I have setup the atom media pc I had laying around and will see how it goes and how much use I get out of it.
Still trying to evaluate between rsync or owncloud still got testings to do.
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