LRU算法,即Last Recently Used ---选择最后一次访问时间距离当前时间最长的一页并淘汰之——即淘汰最长时间没有使用的页
按照最多5块的内存分配情况,实现LRU算法代码如下:
public class LRU {
private int theArray[];
private int back; //定义队尾
private int currentS...
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编程语言 时间:
2014-06-01 02:14:41
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316
DescriptionStandard web browsers contain
features to move backward and forward among the pages recently visited. One way
to implement these features i...
分类:
Web程序 时间:
2014-05-31 21:16:40
阅读次数:
279
Design and implement a data structure for Least
Recently Used (LRU) cache. It should support the following
operations:getandset.get(key)- Get the valu...
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其他好文 时间:
2014-05-30 15:09:06
阅读次数:
223
在之前的文章中简单描述了一下如何通过LRU结合多层缓存机制实现高命中的缓存,这一章节里的主要内容是深入地了解其原理的实现.LRU算法什么是LRU算法?
LRU是Least Recently Used的缩写,即最少使用页面置换算法,是为虚拟页式存储管理服务的.通过这种算法可以把最近使用的数据迁移到数据...
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其他好文 时间:
2014-05-28 21:19:55
阅读次数:
308
Design and implement a data structure for Least
Recently Used (LRU) cache. It should support the following
operations:getandset.get(key)- Get the valu...
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其他好文 时间:
2014-05-23 09:59:05
阅读次数:
257
Microsoft Open Technologies has recently
released a Portable Class Libraryfor SQLite. Thanks to it, we can use SQLite in
the same way in all the suppo...
分类:
数据库 时间:
2014-05-22 15:06:51
阅读次数:
428
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:
get and set.
get(key) - Get the value (will always be positive) of the key if t...
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其他好文 时间:
2014-05-22 07:25:32
阅读次数:
254
leetcode上刷题。碰到一题实现LRU算法的题目。LRU,Least recently
used。是一种常见的cache和页面替换算法。算法和原理可以参阅相关wiki。leetcode上的这一题,时间要求很苛刻,如果达不到O(1)复杂度的话,基本上会TLE。所以,这一题如果用C++来解的话,需要...
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编程语言 时间:
2014-05-22 03:34:16
阅读次数:
353
题目:We all know that Bin-Laden is a notorious
terrorist, and he has disappeared for a long time. But recently, it is reported
that he hides in Hang Zho...
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其他好文 时间:
2014-05-22 01:09:55
阅读次数:
328
DearsirorMadam:ThislettercomesforyoufromastudentnameLiming.Iamwritingtoyoutoapplyforadmissionintoyourrecentlyadvertisedpositionforastaffmember.IamsurethatIamqualifiedforit.First,enclosewiththisletterismyresume,whichfurtherdetailsmypreviousacademicqualificat..
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其他好文 时间:
2014-05-20 19:08:26
阅读次数:
269