一种自适应多核处理器I/O一致性处理方法

 I/O引发的数据一致性问题是多处理器系统数据一致性问题不容忽视的重要因素.多核使得处理器中的I/O一致性问题变得更加突出.另一方面,I/O访问模式的多样性使得单一的I/O一致性处理方法很难满足多样的I/O应用需求.本文首先分析了I/O应用访问模式,提出了I/O数据访问的七种特性;并根据I/O数据的访问特性提出了一种新型的自适应多核处理器I/O一致性处理方法,使得I/O一致性处理可以自适应地根据I/O应用进行动态调整,从而满足不同应用需求;最后,我们对自适应的I/O一致性处理方法进行了性能评测,评测结果表明该方法对不同的I/O应用均能获得很好性能.

An Adaptive Method for Maintaining I/O Data Coherence of Multi-Core Systems

I/O data consistency problem is an important factor which multiple processors systems can not ignore.Multiple cores make the I/O consistency of processors become more and more severe.On the other hand,diversity of I/O pattern makes it's difficult to find a method which can satisfy different applications.Based on analysis of I/O pattern,we put forward seven characteristics of I/O workloads;Then presented a novel adaptive method for maintaining I/O data coherence in multi-core systems;Finally,the test results...