opReports 3.1.10 introduces a newly developed known_reports_cache to speed up the loading of reports:
- A new option 'opreports_do_cache_known_reports' in /path/to/omk/conf/opCommon.nmis determines whether this cache is enabled or disabled.
- The cache is enabled by default since opReports 3.1.11.
When the known_reports_cache is enabled and one deletes generated reports via the commandline or in a cron job, it is necessary to update the known_reports_cache flag files modified time to flag that the cache must refresh - this command will suffice:
- touch /path/to/omk/var/opreports/known_reports_cache/*.flag
Flushing the cache with the above command is safe and may also be useful in problem-solving.
The performance of the opReports known_reports_cache can be summarised as follows, when checked on a virtual server with 4 CPUs , 16GB of RAM, not using any swap, and with 2.7GB size of /path/to/omk/var/ directory:
|opReports Page Loaded
|Time to load without known_reports_cache (seconds)
|Time to load with known_reports_cache (seconds)
|Opening grouped_capacity Report within Saved Reports Page
|Opening grouped_capacity Report within On-Demand Reports Page