Comparing Memcache and Ehcache Server Performance

Ehcache Server provides a RESTful API for cache operations. I am working on v0.9 and have been doing some performance benchmarks. I thought it would be interesting to compare it with the performance of that other over-the-network cache, Memcache. Now I already knew that Ehcache in-process was around 1,000 times faster than Memcache. But what would the over-the-network comparison be.

Here are the results:

Memcache and SpyMemcache Client

10000 sets: 3396ms

10000 gets: 3551ms

10000 getMulti: 2132ms

10000 deletes: 2065ms

Ehcache 0.9 with Ehcache 2.0.0

10000 puts: 2961ms

10000 gets: 3841ms

10000 deletes: 2685ms

So, the results are a wash. Memcache is slightly slower on put, maybe because the JVM does not have to malloc, it already has the memory in heap. And very slightly faster on get and delete.

A few years ago there was a raging thread on the Memcache mailing list about Memcache versus MySQL with in-memory tables. They were also a wash. I think the point is that serialization and network time is more significant than the server time, provided the server is not that much different.

Read more: Greg Luck's Blog

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