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Software components for data protection, secure storage and transfer

SFTP Server upload speed

Also by EldoS: CallbackProcess
A component to control process creation and termination in Windows and .NET applications.
#1247
Posted: 09/21/2006 08:29:06
by Josef Novak (Basic support level)
Joined: 08/30/2006
Posts: 47

Hello,

on my machine SFTP Server upload speed is approx 1MB/22s (download about 20 times faster). The upload speed is controlled by OnWriteFile event which is fired approximately once a second for amout of 32kB data. My question is if it is possible to increase upload speed somehow (to incerease frequency of this event or buffer size).

Thx
#1248
Posted: 09/21/2006 09:09:22
by Ken Ivanov (EldoS Corp.)

The OnWriteFile event is fired when the corresponding data packet is received from client. I.e., packet size (32kB in your case) depends on implementation details of SFTP client software.

BTW, are you using evaluation or 'real-world' key?
#1249
Posted: 09/21/2006 09:21:28
by Josef Novak (Basic support level)
Joined: 08/30/2006
Posts: 47

Yes, I am using valid key. The client I am using is WinSCP 3.8.2.
#1250
Posted: 09/21/2006 09:38:40
by Josef Novak (Basic support level)
Joined: 08/30/2006
Posts: 47

Your sample client is about 0,64MB/s for both upload and download. Ok.
#1251
Posted: 09/21/2006 09:42:30
by Ken Ivanov (EldoS Corp.)

Thank you for letting us know.

We will investigate the reasons for such a slow speed of WinSCP and try to optimize the server (if possible) for it.
Also by EldoS: Callback File System
Create virtual file systems and disks, expose and manage remote data as if they were files on the local disk.

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