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Do sealed classes really offer performance Benefits?

... The JITter will sometimes use non-virtual calls to methods in sealed classes since there is no way they can be extended further. There are complex rules regarding calling type, virtual/nonvirtual, and I don't know them all so I can't really outline them for you, but ...
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Debugging in Clojure? [closed]

... There's also dotrace, which allows you to look at the inputs and outputs of selected functions. (use 'clojure.contrib.trace) (defn fib[n] (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2))))) (dotrace [fib] (fib 3)) produces the output: TRACE t4425: (f...
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.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo

...ewed the default.aspx page with the Firefox browser. When I check the net calls it has made, I see it making constant calls to: ...
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How to increase the vertical split window size in Vim

:vsplit (short form: :vs ) split the Vim viewport vertically. :30vs splits the viewport, making the new window 30 characters wide. Once this 30 char window is created, how would one change it's size to 31 or 29? ...
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Confused about Service vs Factory

... All angular services are singletons: Docs (see Services as singletons): https://docs.angularjs.org/guide/services Lastly, it is important to realize that all Angular services are application singletons. This means that t...
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Elegant way to invert a map in Scala

... @dev-null I'm sorry, but your example does not fall under the required assumption. – Daniel C. Sobral May 2 '19 at 17:01 ...
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tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...处理 还有诸如不容易调试, 代码比较复杂等等都会增加开发和维护难度。 使用DPDK DPDK是intel推出的快速的数据包处理框架 通过内核uio机制,使数据包直接dma发送到用户态内存中 因为不走内核协议栈,需要结合其他用户...
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Direct casting vs 'as' operator?

... tend to almost never use 2 since if something is not the right type, I usually expect an exception to occur. I have only seen a need for this return-null type of functionality with badly designed libraries which use error codes (e.g. return null = error, instead of using exceptions). 3 is not a ca...
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ACE vs Boost vs POCO [closed]

... situation. The good things about POCO IMO: Better thread library, especially a Active Method implementation. I also like the fact that you can set the thread priority. More comprehensive network library than boost::asio. However boost::asio is also a very good library. Includes functionality that...
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Concurrent vs serial queues in GCD

...ou wouldn't use either of the last two for long running processes. You normally see it when you're trying to update the UI (always on the main thread) from something that may be running on another thread. share | ...