Re: rsync over ssh, slow speed (700 kB/s) on x230

2021-02-03 Thread Sven Wolf

Hi,

over cable/lan everything is fine.
On my router (OpenWRT) I detected a speed/bandwidth drop from 72 Mbit/s 
down to 6 Mbit/s when I start the copy over wireless. That's strange, 
because under Linux I don't see this issue.

Lesson learned: use the cable :)

Best regards,
Sven

On 2/2/21 11:04 PM, Sven Wolf wrote:

Hi,

on my x230 the rsync over ssh speed is extremly slow - about 700 kB/s 
over wireless. I don't see a performance issue on the source and target 
systems. When I reboot to Linux the speed is acceptable - about 12 mB/s 
over wireless.

The compression an ciphers parameters don't have impact to the speed.

Interesting is that under OpenBSD in debug mode the lines get printed 
slowly.

692.05kB/s    0:17:16  debug2: channel 0: rcvd adjust 32768

Under Linux the debug lines scroll really fast over the screen
debug2: channel 0: rcvd adjust 114688

Do you have any ideas how I can solve the problem?
ulimit, openfiles limit etc. don't show any problems.

Thanks and best regards,
Sven





rsync over ssh, slow speed (700 kB/s) on x230

2021-02-02 Thread Sven Wolf

Hi,

on my x230 the rsync over ssh speed is extremly slow - about 700 kB/s 
over wireless. I don't see a performance issue on the source and target 
systems. When I reboot to Linux the speed is acceptable - about 12 mB/s 
over wireless.

The compression an ciphers parameters don't have impact to the speed.

Interesting is that under OpenBSD in debug mode the lines get printed 
slowly.

692.05kB/s0:17:16  debug2: channel 0: rcvd adjust 32768

Under Linux the debug lines scroll really fast over the screen
debug2: channel 0: rcvd adjust 114688

Do you have any ideas how I can solve the problem?
ulimit, openfiles limit etc. don't show any problems.

Thanks and best regards,
Sven