CacheMind:使用虚拟机监视器进行快速性能恢复

2010 International Conference on Dependable Systems and Networks Workshops (DSN-W) Pub Date : 2010-06-28 DOI:10.1109/DSNW.2010.5542614

Kenichi Kourai

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引用次数: 7

摘要

重新启动操作系统是一种最终但功能强大的恢复技术。但是，由于丢失文件缓存，系统性能在重新启动后会大幅下降。为了快速恢复性能，我们提出了一种新的重启机制，称为热缓存重启。warm-cache重启会在重启过程中保留主存上的文件缓存，并使操作系统在重启后恢复文件缓存。操作系统底层的虚拟机监视器(VMM)保证重用的文件缓存与磁盘上相应的文件一致。我们已经在Xen VMM和Linux操作系统中实现了热缓存重启机制。从我们的实验结果来看，热缓存重启降低了重启后的性能下降。此外，我们确认被故障损坏的文件缓存没有被重用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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CacheMind: Fast performance recovery using a virtual machine monitor

The reboot of an operating system is a final but powerful recovery technique. However, the system performance is largely degraded just after the reboot due to losing the file cache. For fast performance recovery, we propose a new reboot mechanism called the warm-cache reboot. The warm-cache reboot preserves the file cache on main memory during the reboot and enables an operating system to restore the file cache after the reboot. A virtual machine monitor (VMM) underlying an operating system guarantees that the reused file cache is consistent with the corresponding files on disks. We have implemented the warm-cache reboot mechanism in the Xen VMM and the Linux operating system. From our experimental results, the warm-cache reboot decreases performance degradation just after the reboot. In addition, we confirmed that the file cache corrupted by faults was not reused.

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来源期刊

2010 International Conference on Dependable Systems and Networks Workshops (DSN-W)

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