An adaptive compilation system based on the Dalvik virtual machine

被引：0

作者：

Ling, Ming ^{[1
]}

Wu, Jian-Ping ^{[1
]}

Feng, Ke-Huan ^{[1
]}

机构：

[1] National ASIC System Engineering Research Center, Southeast University, Nanjing

来源：

Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2013年 / 41卷 / 08期

关键词：

Adaptive compilation system; Dalvik; Dynamic adaptive threshold; Threshold reset;

D O I：

10.3969/j.issn.0372-2112.2013.08.027

中图分类号：

学科分类号：

摘要：

After the bottle-neck of the adaptive compile system for Dalvik being analyzed, according to the scenery when the threshold counter decrements to zero, a lot of waiting time will be caused by system initialization, the strategy based on threshold reset is introduced. According to some applications centralized with hot-spot codes, which will caused a great deal of compiling work to be suspended, a strategy of dynamic adaptive threshold based on a result feedback mechanism, is implemented. It could maximize the performance enhanced by the dynamic compilation scheme. Compared to the Dalvik before optimization, the experimental result based on the platform of Galaxy S of Samsung Corporation indicates that the execution efficiency of loop operations is improved by 7% on average after optimized by the threshold reset strategy, the execution efficiency of conditional jump operations and instruction dispatch are improved by 5% on average and 8% assisted by the dynamic adaptive threshold scheme.

引用

页码：1622 / 1627

页数：5

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