IdP capacity / load testing advice

[Cantor, Scott]

On 7/10/15, 2:46 PM, "users on behalf of Jerry Shipman" <users-bounces at shibboleth.net on behalf of jes59 at cornell.edu> wrote:

>The logins per day are not that high, no. But inside a day, not all of the seconds have the same number of logins.

No, but our peak gets nowhere close to 200 per second, and that's with 65,000 students.

> I think the peak seconds I found were probably some correlated event like "all of the students are trying to log in at 11:58p in order to submit the homework that is due at midnight" (just a guess).
>(Also, it's nice to have some excess capacity because once in a while you see infinite-loop-browser-bugs, or maybe deliberate attacks, etc.)

I think you'll have to vastly over-provision to get that kind of capacity. Physical hardware is pretty simple to do that with, just buy quad-core, deploy two or three, and you get 16 or more HT cores. Probably would take 8 VMs to get to the same place.

-- Scott