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  • we have installed elgg 1.8 on two different servers with this specification: 1- 4cpu, 2.8 ghz, 4GB ram 2- 8cpu, 2.8 GHz, 16 GB ram we used wapt pro 2.5 software to emulate users simultanious activities and the results are described below: cpu...
      • I would expect that cpu usage would increase when you start to load the server (wasn't sure what your point was there)
      • RAM usage depends a lot on server configuration and also on number of plugins/what plugins. You will see different RAM usage patterns Apache vs nginx.
      • Make sure you are running the latest version of Elgg
      • Make sure you have all the caching turned on for Elgg
      • Make sure you are using something like APC
      • Search plugin hits the DB extremely hard


      I hope you realize that hitting a server like that is not at all an accurate picture of how many users you can support. It is a worse case scenario - slashdot effect kind of analysis.

    • which server crashes ? #1 or 2 ? 100% ram usage ! does not sound right ;(
      we've had 150 simultaneous users some 2 years ago.. with no problems except occasional 'warnings' or slower responses with similar server hardware.
      one small piece of advice for this situation.. take from our experience
      the fine-r tuning that we did not to get to that state was not achieved with short questions and quick answers -- a fair lot of apache, mysql, linux configuration kopw-how and.... a lot of patience over time to monitor performance and config changes' resultants was done before the server showed improvements. not a task for weak-hearts ;-) when the server behaves unexpectadly and requires very quick restores to config while scratching heas to deternine what went wrong..

  • amirkhan joined the group Feedback and Planning