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    <p>I understand this may sound as a groundless statement, but use *nix unless you have to use Windows. The only situation where you have to have Windows servers in your environment is when you choose MS SQL Server DBMS (it is almost a Sybase but is a way cheaper), in which case have Windows box for the DB and *nix server for middle tier.</p> <p><strong>Java</strong> is the best technology for millisecond grade middleware, mainly for the amount of mature standartized open source technologies available. Everything from coding (Eclipse, NetBeans, Idea) to manual (ant, maven) and automatic (teamcity, hudson/jenkins) builds, testing, static code analysis is there, is standartized, is open source, and is backed up by a multimillion size community.</p> <p><strong>Linux</strong> is the best server side platform for performance, stability, ease of maitenance, quality of the development environment - an extremely powerful command line based IDE. You can expect multimonth uptime from a Linux server, but not from Windows.</p> <p><strong>Tomcat/Servlet</strong> (or Jetty/Servlet) is a classic industrial combination in many financial institutions where stability is the #1 priority.</p> <p><strong>And lastly, the IO performance concern</strong>: a high quality user space non-blocking IO code will be CPU and hardware bandwidth bound, so OS will not be determining factor. Though fancy things like interrupts affinity, threads pinning, informed realtime tuning, kernel bypass I believe are easier to do on Linux.</p>
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    1. COIn fact I prefer to linux personally,then is there any points we should know to make a better performance(I mean a fast response time to the client),for example do we need to use the queue?
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    2. CO@hguser - not sure what you call "queue". Assuming you're going Java, and performance means best throughput (opposed to lowest latency), then the best option is to use non-blocking epoll based single threaded IO loop backed by the fixed size thread pool executor (total number of busy threads should be a function of the number of CPU cores on the box). Prefer atomics and non-blocking synchronization primitives to blocking ones. Make sure to stay in control of the number of objects allocated at runtime, prefer base types to boxed, native arrays to collections, etc.
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    3. CO:Thanks for your attention and replay.:). Through your comments I know my "queue" means the "thread pool". In fact,I have never heard before of many of your words like "epoll","threads pinning"... Is there any quick start documents?
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