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#1 2016-08-08 16:17:04

dp
Member
From: Zürich, Switzerland
Registered: 2003-05-27
Posts: 3,377
Website

sftp speed with different clients (filezilla, kde kio, ..)

when i connect with kde's kio with sftp to a server in the local LAN, i get transfer speeds of 7-9 mb/s. when i use filezilla (same network, server, everything) i get per transfer slot 17-21 mb/s

is the kio using a different implementation of sftp? what are the bottle necks of sftp on the client and server side?

the network is very simple, gigabit, nfs speed tops at 95 mb/s

any input welcome!


The impossible missions are the only ones which succeed.

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#2 2016-08-15 16:07:33

jb
Member
From: Florida
Registered: 2006-06-22
Posts: 466

Re: sftp speed with different clients (filezilla, kde kio, ..)

If it's still the same issue when I tried to find a fix about 2 years ago, the problem is that kio, unlike the others, relies on libssh.  libssh has had this open ticket for five years now.


...

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#3 2016-08-15 17:03:51

dp
Member
From: Zürich, Switzerland
Registered: 2003-05-27
Posts: 3,377
Website

Re: sftp speed with different clients (filezilla, kde kio, ..)

wow, the bug was posted against 0.5.x and now we have 0.7.4 with the resemblingly same issue.
can anyone verify my observations?


The impossible missions are the only ones which succeed.

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#4 2016-08-16 13:22:31

jb
Member
From: Florida
Registered: 2006-06-22
Posts: 466

Re: sftp speed with different clients (filezilla, kde kio, ..)

I moved some data around my office this morning.  I still see the same bug. To put some numbers on it:

Nemo: 114MBps symmetric
scp:  108MBps symmetric
Dolphin: 10MBps down, 24.5MBps up


Findings.
I didn't screenshot the uploads of nemo or scp since they were the same transfer rates as the downloads.


...

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#5 2016-08-18 21:18:39

dp
Member
From: Zürich, Switzerland
Registered: 2003-05-27
Posts: 3,377
Website

Re: sftp speed with different clients (filezilla, kde kio, ..)

thank you. you verify my observation that it is still the issue and libssh still _broken_.


The impossible missions are the only ones which succeed.

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#6 2016-08-19 11:55:37

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,012

Re: sftp speed with different clients (filezilla, kde kio, ..)

Well, kde should really stop using broken and likely bad mantained software.

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#7 2017-01-14 17:29:10

Yamashita Ren
Member
Registered: 2013-08-26
Posts: 14

Re: sftp speed with different clients (filezilla, kde kio, ..)

Bumped into the same issue.
Seems like here "fish" gives decent speed while "sftp" gives abysmal speed (wifi).
Maybe "fish" will work as good on OP's network...

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