After the socialist party upgraded civicrm to version 4.6 a month ago they are experiencing performance issues. In this blog I will round up our quest for performance improvements. But before that some facts about their installation.
- +/- 350.000 contacts
- +/- 300 users who can access civicrm and see members in their local chapter
- +/- 2700 groups
- There are several campaign websites linked to CiviCRM and one of their successfully campaigns leads to 7500 new contacts per week in the system
- Running on a VPS with 4 CPU cores...