54 lines
2.6 KiB
HTML
54 lines
2.6 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN">
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<html>
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<head>
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<title>Synthesis: An Efficient Implementation of Fundamental Operating System Services - Abstract</title>
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<link rel="stylesheet" type="text/css" href="../css/style.css">
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<link rel="stylesheet" type="text/css" href="style.css">
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</head>
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<body>
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<div id="nav">
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<a class=home href="../index.html">Alexia's Home</a>
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<a href="index.html">Dissertation</a>
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<a class=here href="abs.html">Abstract</a>
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<a href="ack.html">Acknowledgements</a>
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<a href="toc.html">Contents</a>
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<a href="ch1.html">Chapter 1</a>
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<a href="ch2.html">Chapter 2</a>
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<a href="ch3.html">Chapter 3</a>
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<a href="ch4.html">Chapter 4</a>
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<a href="ch5.html">Chapter 5</a>
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<a href="ch6.html">Chapter 6</a>
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<a href="ch7.html">Chapter 7</a>
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<a href="ch8.html">Chapter 8</a>
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<a href="bib.html">Bibliography</a>
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<a href="app-A.html">Appendix A</a>
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</div>
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<div id="running-title">
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Synthesis: An Efficient Implementation of Fundamental Operating System Services - Abstract
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</div>
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<div id="content">
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<h1>Abstract</h1>
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<p>This dissertation shows that operating systems can provide fundamental services an order of magnitude more efficiently than traditional implementations. It describes the implementation of a new operating system kernel, Synthesis, that achieves this level of performance.
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<p>The Synthesis kernel combines several new techniques to provide high performance without sacrificing the expressive power or security of the system. The new ideas include:
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<ul>
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<li>Run-time code synthesis - a systematic way of creating executable machine code at runtime to optimize frequently-used kernel routines - queues, buffers, context switchers, interrupt handlers, and system call dispatchers - for specific situations, greatly reducing their execution time.
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<li>Fine-grain scheduling - a new process-scheduling technique based on the idea of feedback that performs frequent scheduling actions and policy adjustments (at submillisecond intervals) resulting in an adaptive, self-tuning system that can support real-time data streams.
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<li>Lock-free optimistic synchronization is shown to be a practical, efficient alternative to lock-based synchronization methods for the implementation of multiprocessor operating system kernels.
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<li>An extensible kernel design that provides for simple expansion to support new kernel services and hardware devices while allowing a tight coupling between the kernel and the applications, blurring the distinction between user and kernel services.
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</ul>
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The result is a significant performance improvement over traditional operating system implementations in addition to providing new services.
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</div>
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</body>
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</html>
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