With PHP Extension 5.5.6 and daemon 1.8.12 the efficiency of a full page cache can be monitored by Tideways. Each service and transaction can calculate their page cache hit rate in %. Marking a request as a hit or miss can be done using the Page Cache hit API in Tideways or the automatic instrumentation for Shopware 6.
- Documentation: Page Cache Hit Rates
- API Reference: Tideways\Profiler::markPageCacheHit and markPageCacheMiss