SSL on Apache seems to significantly affect WebDAV performace

Posted by takesides on Server Fault See other posts from Server Fault or by takesides
Published on 2012-03-21T17:19:32Z Indexed on 2012/03/21 17:31 UTC
Read the original article Hit count: 198

Filed under:

apache2

|

ssl

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webdav

I'm using Apache 2.2 running on Windows Server 2008 R2 as a WebDAV server for clients to upload large media files (roughly 100-2000MB). I am finding that when I have SSL enabled (openSSL 0.9.8o) and use HTTPS for the uploads the throughput is around 13Mbps but when I disable it and just use HTTP I get around 80Mbps. I can't understand why this is happening as my understanding was that the heavy SSL work was done at the beginning of the connection.

Does anyone have any idea why the performance is so drastically affected by enabling SSL?

Cheers.

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