MS Velocity vs Memcached for Windows?

caching memcached appfabric distributed-caching
RobertTheGrey picture RobertTheGrey · Dec 29, 2008 · Viewed 10.5k times · Source

I've been paying some attention to Microsoft's fairly recent promoting of Velocity as a distributed caching solution that would compete with the likes of Memcached.

I've been looking for a 64bit version of Memcached for Windows for some time now with no luck, and since everything about the ASP.Net MVC project I'm working on is 64bit, it doesn't make sense to use anything but 64bit.

Now we're already hedging our bets with ASP.NET MVC in Beta (RTM soon hopefully), but StackOverflow doesn't seem to be doing too badly, so I have limited concerns there. But Velocity is still very much an unknown quantity and will still be Beta (or CTP) for ages - but it does have 64bit!

Does anyone have relevant experience or point of view to offer in this situation? Should we bide our time for Velocity - is it even anywhere near good enough to compete with a giant like Memcached, or should we invest time trying to get a 64bit version of Memcached going?

Answer

Jan Zich picture Jan Zich · Jan 31, 2009

We have done recently a fair amount of comparing of Velocity and Memcached. In the nutshell, we found Velocity to be 3x - 5x slower than Memcached, and (even more crucially) it does not have currently support for a multi-get operation. So at the moment, I would recommend going with Memcached. Also, another lesson we have learned was that the slowest operation in distributed caching is serialization and deserialization (at least in ASP.NET). The in-process ASP.NET cache is order of magnitudes faster. So you have to choose caching strategies much more carefully.

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