jClarity has been instrumental in solving some of KAYAK's biggest garbage collection problems. Kirk, Martijn, and team have helped us identify and fix problems that go beyond just sizing the heap.
They've helped us identify and fix application behavior that's been the root cause for some of our worst stop-the-world GC pauses. KAYAK has a diverse set of Java services and Censum has given us unmatched insight into the garbage collection behavior of our biggest applications.
We've been able to quickly visualize the effect of both application code changes and GC configuration changes.
jClarity's monitoring services and products – together with their training and technical input – have greatly improved our visibility into the performance of our Java applications.
Aside from just being a supplier they are proactive in helping us improve the performance and stability of our apps and are a valued partner in making sure our site maintains the high degree of availability and performance people expect from it.