6 guides
Speed and caching
Redis, Varnish, OPcache, OpenSearch and PHP workers: make the store fast and keep it fast.
Speed and caching
Redis, Varnish, OPcache, OpenSearch and PHP workers: make the store fast and keep it fast.
- Redis for Magento cache and sessionsTwo Redis instances, one database and prefix per shop, and a one-click switch back to files.
- Varnish full page cache for MagentoTurn Varnish on for one store, choose its memory, read the hit rate and empty it.
- OPcache: why code changes sometimes do not showPHP keeps compiled code in memory. When that helps, when it hides your changes and how to empty it.
- OpenSearch for Magento searchMagento 2.4 needs a search engine. How OpenSearch runs on your server and what to do when search fails.
- PHP workers and memory: sizing for trafficHow many PHP requests can run at once, how that relates to memory, and how to tune pm.max_children.
- My store is slow: a checklistTen checks, in order, that find the cause of most slow stores on a Gen2 server.
Still stuck? Ask a person.
Tickets go straight to the engineers who run ShopWhizzy servers. Tell us the store, what you see and when it started, and we take it from there.