Just a quick note to say that I have updated the JSON serializers benchmark to use the latest Nuget versions of ServiceStack.Text, Json.Net and JsonFX. I have also included the JSON and BSON serializers from the MongoDB C# Driver in the test, and since BSON is a binary format I have included protobuf-net as a …
JSON serializers benchmark updated – including MongoDB Driver Read More »
Amazon’s DynamoDB is a wonderful product – scalable, durable, fast, with predictable latency numbers unlike SimpleDB. However, the only gripe I have with DynamoDB is that there is no built-in support for a query language, which makes life rather difficult when you want to perform a query or a scan against the data you have …
DynamoDb.SQL – a SQL-like external DSL for Amazon DynamoDB Read More »
In general, when you see async void in your code it’s bad news, because: you can’t wait for its completion (as mentioned in this post already) any unhandled exceptions will terminate your process (ouch!) Suppose you have a timer event that fires every once in a while and you want to do some asynchronous …
With the official release of .Net 4.5 and Visual Studio 2012, I suspect many .Net developers will be rushing to rewrite their data access or network layers (amongst many many other things!) to take advantage of the new async-await (see the excellent 101 examples here) language feature in C#, which means you’ll likely be working …
F# – helper functions to convert between Async<unit> and Task Read More »
In Erlang, we have the Supervisor behaviour which makes it very easy to provide the means to monitor and restart a whole network of workers and other supervisors based on some configured strategy. The MailboxProcessor (aka agents) in F# doesn’t come with the same higher-level abstractions (such as Erlang’s gen_server, gen_fsm behaviours) by default, but …
This is my list of takeaways from a very good talk by Theo Schlossnagle on things you should be thinking about when designing a system for large scale. I hope you enjoy the talk as much as I did, it certainly leaves plenty of food for thought and personally it is encouraging to see that …
Takeaways from Theo Schloss’s talk on Scalable Internet Architecture Read More »
Actor model will change the way you think about computation and parallelism. Hear from the mouth of the Carl Hewitt, the creator of the actor model.
This is so good I keep going back to it, so to save myself and you the hassle of searching for it every time I thought I’d share it here on my blog, enjoy! Ten^H^H^H Many Cloud App Design Patterns from Shlomo Swidler
Another Thursday had gone by and yet another slot has been added to JackpotJoy Slots, this time it’s a grizzly themed 50-line slot called Bear Cubs! The main slots game is pretty straight forward, albeit being 50-lines instead of the typical 25, where things really become interesting is the bonus feature. When you land 3, …
In F# you can write an extension method like this: Whilst this will work perfectly fine in your F# code, the extension method will not be visible to any C# code using the FileInfo type because F# and C# compiles extension methods differently. To make C#-compatible extension methods in F#, here’s what you need to …
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