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  1. PO
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    <p>There is a MailboxProcessor in F#... I would use a SynchronizationContext in C# for the same purpose. Give me a few minutes and I will write up an example.</p> <p>Aside: Here's my code in F# that does something similar... It will be considerably more effort, but still doable in C# with Rx.</p> <pre><code>open System.Diagnostics let numWorkers = 20 let asyncDelay = 100 type MessageForMailbox = | DataMessage of AsyncReplyChannel&lt;unit&gt; | GetSummary of AsyncReplyChannel&lt;unit&gt; let main = let actor = MailboxProcessor.Start( fun inbox -&gt; let rec loop acc = async { let! message = inbox.Receive() match message with | DataMessage replyChannel -&gt; replyChannel.Reply(); return! loop acc | GetSummary replyChannel -&gt; replyChannel.Reply(); return! loop acc } loop 0 // seed for acc ) let codeBlocks = [for i in 1..numWorkers -&gt; async { do! Async.Sleep asyncDelay return! actor.PostAndAsyncReply DataMessage } ] while true do printfn "Concurrent started..." let sw = new Stopwatch() sw.Start() codeBlocks |&gt; Async.Parallel |&gt; Async.RunSynchronously |&gt; ignore actor.PostAndReply GetSummary sw.Stop() printfn "Concurrent in %d millisec" sw.ElapsedMilliseconds printfn "efficiency: %d%%" (int64 (asyncDelay * 100) / sw.ElapsedMilliseconds) printfn "Synchronous started..." let sw = new Stopwatch() sw.Start() for codeBlock in codeBlocks do codeBlock |&gt; Async.RunSynchronously |&gt; ignore sw.Stop() printfn "Synchronous in %d millisec" sw.ElapsedMilliseconds printfn "efficiency: %d%%" (int64 (asyncDelay * numWorkers * 100) / sw.ElapsedMilliseconds) main </code></pre>
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    1. POAggregate large number of observables into new observable
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    1. USGregC
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    1. COhmm, so you mean something along the lines of using SynchronizationContext.Send() to sync all the observables creating Events? I kinda see what your F# code does but I'm not savvy enough to understand it completely.
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      1. USlukebuehler
    2. COI think you got it. RunSynchronously implements ForkJoin with async workflows.
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      1. USGregC
    3. CO+1: I've never seen a good example of the MailboxProcessor before. :)
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      1. USTuomas Hietanen
 

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