Magento Full Page Cache & Load Testing

Question

Magento Enterprise 9 Full Page Caching is on Cache depth: 1 (ex. catalog.html?p=1)

Current results from JMeter after about 1,000 samples: Throughput: Homepage: 8.5/sec - ~40kb Catalog: 6.1/sec - ~65kb

Error rate is very low, 0% for homepage, and 1.1% for catalog.

There's no reverse proxy server or a load balancer infront of the server yet.

When the test is running, I can see a spike in requests being sent to the MySQL server. Does Magento full page caching not fully cache the pages, or is there something wrong with the state of cache?

Answer 1

1. Can you post jMeter profile - depending on your cookie configuration, you will find differing results from EE's FPC

2. Also, how have you configured your cache backend, to use File/Backend/DB/Memcache/Redis? http://www.sonassi.com/knowledge-base/magento-kb/what-is-memcache-actually-caching-in-magento/)

Both of the above points will effect the frequency and type of SQL queries being executed. But I wouldn't rely solely on FPC - especially when benchmarking. It makes a lot more sense to disable FPC but leave the remaining caches enabled, so as not to skew your benchmarking.