How to disable caching?
Caching methods can be enabled or disabled in your CiviCRM settings file (eg: civicrm.settings.php).

The setting you're looking for is:
CIVICRM_DB_CACHE_CLASS

To disable caching, change the value to 'NoCache'. Other possible settings are documented above the setting in the file.

There is a page about caching in the documentation here: https://wiki.civicrm.org/confluence/display/CRMDOC/Cache+Reference