SFTP plugin speed to slow, something I can do?

[nirmelamoud]

HI,

I compare SFTP plugin and winscp application against my local NAS device that support SFTP,
with total commander I get average of 19MB and with winscp I get 67MB

is it something I can do ? tuning ? upgrade ? etc
so other see the same ?

the ethernet link is 1GB

thanks
(hope I got the right group this time)

[ghisler(Author)]

WinSCP seems to use the SCP file transfer protocol when possible. Try enabling SCP in my plugin, it is much faster than the default SFTP file transfer method.

[remittor]

I've done performance tests before:
https://www.ghisler.ch/board/viewtopic.php?p=360224#p360224

Now I decided to conduct other tests. For this I builded SFTP plugin from fresh sources:
1) SFTP plugin: https://www.totalcommander.ch/beta/sftpplug_src280b4.zip
2) libssh2 v1.9.0: https://github.com/libssh2/libssh2
3) libressl v3.2.2: https://github.com/EtchDroid/LibreSSL

The tested speed transferred a huge file between two computers (Xeon 5660) that are connected by a 1 Gbit network (Win7 x64 / Ubuntu 14).

Results:

Code: Select all

1) Orig SFTPplug 2.80 b4 x64 (SCP)      10 MB/s
2) New  SFTPplug 2.80 b4 x64 (SCP)      51 MB/s
3) curl.exe -v -k sftp://... (SFTP)     56 MB/s

Download New SFTPplug 2.80 b4: https://www.filesend.jp/En5e0J

[ghisler(Author)]

1. Did you just build the SFTP plugin, or also the libssh2 yourself?
2. Which compiler and version did you use?

[remittor]

1. Did you just build the SFTP plugin, or also the libssh2 yourself?

All libraries (libressl + libssh2) and SFTPplug are statically linked into one DLL (wfx64).
Without WinCNG !!!

2. Which compiler and version did you use?

MSVC 2015, toolset v140 (Vista)

[remittor]

I find out the cause a very slow speed when using SFTP mode.

After the fix, I got the following speed results:

Code: Select all

1) Orig SFTPplug 2.80 b4  x64 (SFTP)   6 MiB/s
2) Orig SFTPplug 2.80 b4  x64 (SCP)   10 MiB/s
3) New  SFTPplug AllInOne x64 (SFTP)  50 MiB/s
4) New  SFTPplug AllInOne x64 (SCP)   51 MiB/s
5) curl.exe -v -k sftp://...  (SFTP)  56 MiB/s

The source code is here: github.com

Download SFTPplug ALLinONE x64: https://x0.at/mwY.zip