Exclude content from these tables, to get clean db backup(backup_migrate module usage). You can even use git to store your database, when you don't export cache tables.
Source code viewer
batch cache cache_* ctools_css_cache ctools_object_cache flood history menu_router // If you exclude data from this one, you have to regenerate menu: drush eval 'menu_rebuild();' node_comment_statistics queue search_dataset search_index search_node_links search_total semaphore sessions watchdogProgramming Language: Text