Real-world performance of incache

 Hi,As you may be aware, in 7.5p5 and onwards there is a new cache implementation called InCache. It provides similar functionality for page caching as the traditional page caching implementation, but offers many benefits including improved performance and scalability.

I am interested to gather some real-world experiences on InCache page caching, such as:

• performance figures before and after switching to InCache, such as publish times, heap/disk usage
• production tuning parameters, such as cs-cache.xml sizes and JVM params
• overall impression of InCache versus traditional

For my part I did a synthetic test of the time taken to invalidate 15'000 cached pagelets on single-core low powered 7.6 tomcat installation, to roughly simulate the time taken during publish when cache is flushed. (In the real world cache flush could form a large part of the publish duration if a large number of pagelets need to be flushed, it depends on the implementation). I built them up using jmeter, triggered a cache flush and measured the time taken to flush. My results: