I have heavy problems considering the performance of piwik.
First of all: yes, I read and followed the instructions considering auto-archiving, and I set my memory limit to 256MB (!).
When I try to start a cron job I always get the message:
PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 337624 bytes) in /srv/www/vhosts/my-domain/httpdocs/piwik/piwik/core/DataTable.php on line 818
Also when I try to get a monthly statistic via my browser I dont get any results, the scripts time out…
I already tried to uninstall and re-install piwik etc… always the same problems.
PS: my site has about 10.000 users per day.