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Editorial Team
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Asked: 2026-05-23T16:06:59+00:00

We provide a critical application for a customer. It’s a clickonce winforms application which

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We provide a critical application for a customer. It’s a clickonce winforms application which consumes several WCF services which communicates with an Oracle Database.
The service is hosted with Oracle Application Server with two Web Cache Servers in front for load balancing. The Database is on another separate machine.

Thing is, the application has now poor performance and we need to speed it up. We have tried many techniques: optimize queries with adding indexes when analyzing explain plans, reducing service calls from client and profiling the client application for pitfalls.

But I would really like two set up a caching layer over the database or the WCF. The data is critical and changed quite often so it’s necessary to get the latest data at all requests.
So when data changes in the database the cache should immediately be expired. The queries are complex with up two 14-15 joins…

How is the right way to do this and which tools/frameworks should I use? I have heard of memcached.. is this good?

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1 Answer

  1. Editorial Team

    Because your code sees all updates to the data you can have a very effective caching layer as the cache can be updated at the same time as the database.

    With your requirement for absolute cache coherency you need to make sure all servers see the same cache. There are two approaches you could take:

    1. Have a cache server which uses something like the ASP.NET cache which the application servers talk to to get and update the data
    2. Use a caching product to maintain the cache

    If you use a caching product there are a number on market: memcached, gemfire, coherence, Windows Server AppFabric Caching and more

    The nice thing about AppFabric Caching (project formally known as Velocity) is that it is free with Windows Server and is very .NET friendly (although it is newer than some of the others and so you might say less proven)

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