Duet Wifi upload speed question

Torro · 16 Mar 2019, 08:41

Hi there,

i have a small issue and don´t know what to try next.

the problem is, the bigger the file, the slower the upload.

gcode about 200MB, upload speed starts at 40KiB/s and ends at about 400KiB/s
a small file with 2-3MB is done in a heart beat. and DWC shows something between 960KiB/s and 1.3MB/s

M122 shows WiFi signal strength -42dBm, reconnections 0, sleep mode modem

i´m using a USB3.0 external HDD, connected to the router.
when i upload from the computer directly, the upload speed for bigger files is about 500KiB/s.

M122 P104: SD write speed for 10.0Mbyte file was 1.89MBytes/sec

is the microSD the bottleneck? it´s a sandisk class 10.

Thanks!

dc42 · 16 Mar 2019, 10:29

Try M122 P104 S200 to see how long it takes to write a 200Mb file to the SD card.

Torro · 16 Mar 2019, 12:34

@dc42 said in Duet Wifi upload speed question:

M122 P104 S200

SD write speed for 200.0Mbyte file was 1.77MBytes/sec

nearly 2 minutes

dc42 · 16 Mar 2019, 12:53

@torro said in Duet Wifi upload speed question:

@dc42 said in Duet Wifi upload speed question:

M122 P104 S200

SD write speed for 200.0Mbyte file was 1.77MBytes/sec

nearly 2 minutes

That's still a lot better than 400kb/sec. So it's not the SD card that's throttling it, it's the browser+operating system or the network.