Ejabberd resource tests/try 5

From OLPC
Jump to navigation Jump to search

Try 5: a few hundred users, interacting properly

It turns out that in the hyperactivity agents were not interacting in Ejabberd resource tests/try 4.

For this test several hyperactivity instances were used, each running 50 clients. 4 XO laptops were also connected, so the total number of clients was at most stages 50n + 4.

Memory use

Here you can see the memory use is slightly over 1 MB per user, and growth is approximately linear or slightly in excess thereof. The server has 1GB of ram.

Try5-users active vs resident mem.png

Try5-psmem-resident mem-virtual mem.png

Memory use vs connections

This shows max-median-min values for stable points along the way. (Where the readings appear to stack up on each other, the number of connections varies by one or so).

Try5-resident mem min per conn-resident mem max per conn-resident mem median per conn.png

CPU usage

Cumulative CPU use by the ejabberd process:

Try5-users active vs cputime.png

Load averages, by connections and by time:

Try5-load avg 5 min per conn-load avg 5 max per conn-load avg 5 median per conn.png

Try5-load avg 1-load avg 5-load avg 15.png


The laptops

Note that they all see a different number of clients.

Try5-hyperactivity-3-800.jpg

Retrieved from "http://wiki.laptop.org/mediawiki/index.php?title=Ejabberd_resource_tests/try_5&oldid=178337"