I’m testing syncthing on a zsun wifi card reader which is based on the AR9331 with 64MiB RAM and a 400mhz mips CPU https://wiki.openwrt.org/toh/zsun/wifi-card-reader It’s obviously slow but I just wanted to check if there are any possible performance tweaks I could use to improve it. [5TF2H] 20:23…

That’s not really supposed to work. :slight_smile: But for small amounts of data I guess you might be fine. I’d set the following (advanced options): progressUpdateIntervalS = -1 (reduces memory pressure when scanning if there are a lot of changes) For each folder, to reduce concurrency and save …

Also, if it does work, you might win this thread: [image] Is this the smallest syncthing device? General [image] It’s a Raspberry Pi Zero W. The usb cable is for power. lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 1 116.9G 0 disk └─sda1 …

Oh, and consider exporting the environment variable GOGC=50 or even lower (the default is 100). Lower values means lower memory overhead due to GC, but correspondingly more CPU usage. Experiment. Add some swap if you haven’t already. Also STNORESTART=1 will save you one process and the little memor…

Thanks, after those tweaks it still seems to transfer at around 64KiB but sometimes peaks up to 70KiB. It uses probably 5MB less memory and makes the device a little more responsive during transfers.

MIPS performance

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calmh (Jakob Borg) August 31, 2017, 5:49am 3

Also, if it does work, you might win this thread: