JSCAPE Load Tester is a platform independent load testing application for use in testing performance of FTP, FTPS and SFTP servers under heavy load. Using JSCAPE Load Tester you can model the expected usage of a server by simulating multiple users accessing the server concurrently. Data collected from load testing sessions can help identify and resolve stress points in the server before they become a problem.

Example Uses
Test server performance
Identify and resolve stress points
Proof of concept validation

Feature Summary
Test FTP, FTPS and SFTP servers
Simulate up to 500 concurrent users *
Track connect time, upload time, download time, upload speed and download speed
Export report results in HTML format
Support for public key authentication *
Define user ramp-up periods
Enable debugging to help define points of failure

* 500 concurrent users supported in Enterprise edition.
* Public key authentication supported in SFTP protocol.

Home:
http://www.jscape.com/products/file-transfer-servers/jscape-load-tester/