CAREER: An In-Kernel Runtime Execution Environment for User-Level Programs

EIA-0133589Erez Zadok SUNY-Stony BrookCAREER：用户级程序的内核内运行时执行环境我们建议开发一个系统，该系统将简化操作系统代码开发，同时提高性能。开发操作系统内核代码很困难，原因有三个。首先，内核是一个不可原谅的工作环境，任何小的错误都可能导致大规模的数据损坏；内核的调试工具不像用户级的对应工具那样灵活，也不经常使用。其次，内核开发人员编写的代码必须考虑到许多不寻常的情况，如资源争用、锁、引用计数、被中断或重入等。第三，程序员在成为熟练的内核开发人员之前，必须阅读和理解大量复杂的内核代码。然而，开发内核代码的一个主要优势是它运行得非常快；内核可以直接访问所有系统资源。这项研究的好处将包括创建一种新的系统，允许任何可以编写用户级代码的人在用户级更容易地开发和测试他们的代码，然后在内核内执行该代码以获得显著的性能优势。这项研究将使我们能够了解运行许多内核应用程序的安全性和可伸缩性，并开发方法来进一步优化内核应用程序的性能。

EIA-0133589Erez Zadok SUNY -Stony BrookCAREER: An In-Kernel Runtime Execution Environment for User-Level ProgramsWe propose to develop a system that will simplify operating system code development while improving performance. Developing operating system kernel code is difficult for three reasons. First, the kernel is an unforgiving environment to work in, where any small bug can result in large-scale data corruption; debugging tools for kernels are not as flexible as their user-level counterparts and are not used often. Second, kernel developers must write codes that takes into account many unusual conditions such as resource contention, locks, reference counts, being interrupted or re-entrant, and more. Third, before programmers can become proficient kernel developers, they must read and understand large amounts of complex kernel code. However, one major advantage to developing kernel code is that it runs very fast; the kernel has direct access to all the system resources.The benefits of this research will include the creation of a novel system that allows anyone who can write user-level code to develop and test their code in the user level where it is easier to do so, and then to execute that code inside the kernel to gain significant performance benefits. This research will enable us to learn about the security and scalability of running many kernel applications and develop methods to optimize the performance of in-kernel applications further.