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POMSMQ using questions
 

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    <p>Can you explain, how much RAM memory will be used when using recoverable messages? I know, that one message consumes approximately 70–80 bytes and this is ok and i know that message body will save to the disk, but may it also duplicates body to the RAM? I tried to test that with express and recoverable message (message storage limit is 1gb) — and in both case i see in process explorer, that msmq service process reached his working set (memory) to 1gb. I understand that in case of express messages it's ok, but with recoverable messages it shoud be much less!</p> <p>And the second question is about MSMQ callback limitation.</p> <blockquote> <p>If you receive messages with callback, consider that each process can register only up to 63 callbacks. If your callbacks wait on queues indefinitely without activity, you may reach this limit.</p> </blockquote> <p>Is it applies to all queues or only to one? For example, i have i process and i do something like:</p> <pre><code>QueueFirst = new MessageQueue(@".\test") { Formatter = new BinaryMessageFormatter() }; QueueFirst.ReceiveCompleted += QueueOnReceiveCompleted; QueueSecond = new MessageQueue(@".\test") { Formatter = new BinaryMessageFormatter() }; QueueSecond.ReceiveCompleted += QueueOnReceiveCompleted; for (int i = 0; i &lt; 63; i++) { QueueFirst.BeginReceive(TimeSpan.FromSeconds(10), "", Callback); QueueSecond.BeginReceive(TimeSpan.FromSeconds(10), "", Callback); } </code></pre> <p>Can i do that? I'm asking, because if i set upper cycle limit to value more than 63, nothing bad happens. I'm using this <a href="http://msdn.microsoft.com/en-us/library/c2hsyffy(v=vs.100).aspx" rel="nofollow">method overload</a>, because in help there is something about callbacks, is it means that using event handler doesn't have any limits?</p>
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    1. COWhy are you looking at Working Set? http://getgreenshot.org/2010/07/24/a-few-words-on-memory-usage-or-working-set-vs-private-working-set/
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      1. USJohn Breakwell
 

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