SSL TPS versus HTTP TPS over SSL

Posted on: April 15, 2010

Recently I came acroos a very good article on “SSL TPS versus HTTP TPS over SSL” which I’d like to share with you!

The difference between these two performance metrics is significant so be sure you know which one you’re measuring, and which one you wanted to be measuring.

It may be the case that you’ve decided that SSL certificate is, in fact, a good idea for securing data in transit. Excellent. Now you’re trying to figure out how to implement support and you’re testing solutions or perhaps trying to peruse reports someone else generated from testing. Excellent. I’m a huge testing fan and it really is one of the best ways to size a solution specifically for your environment.

Some of the terminology used to describe specific performance metrics in application delivery, however, can be misleading. The difference between SSL TPS (Transactions per second) and HTTP TPS over SSL, for example, are significant and therefore should not be used interchangeably when comparing performance and capacity of any solution – that goes for software, hardware, or some yet-to-be-defined combination thereof. More explained at

SSL TPS versus HTTP TPS over SSL by macvittie


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