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使用C++实现一个LRU cache
什么是LRU Cache LRU是Least Recently Used的缩写,意思是最近最少使用,它是一种Cache替换算法。什么是Cache?狭义的Cache指的是位于CPU和主存间的快速RAM,通常它不像系统主存那样使用DRAM技术,而使用昂贵但较快速的SRAM技术。广义上的Cache指的是位于速度相差较大的两种硬件之间,用于协调两者数据传输速度差异的结构。除了CPU与主存之间有Cache...
分类:编程语言   时间:2014-09-28 13:58:32    阅读次数:294
System and method for cache management
Aspects of the invention relate to improvements to the Least Recently Used (LRU) cache replacement method. Weighted LRU (WLRU) and Compact Weighted LR...
分类:其他好文   时间:2014-09-26 19:37:08    阅读次数:147
简单LRU cache 实现
起因:我的同事需要一个固定大小的cache,如果记录在cache中,直接从cache中读取,否则从数据库中读取。python的dict 是一个非常简单的cache,但是由于数据量很大,内存很可能增长的过大,因此需要限定记录数,并用LRU算法丢弃旧记录。key 是整型,value是10KB左右的python对象...
分类:其他好文   时间:2014-09-26 02:08:28    阅读次数:267
用LinkedHashMap实现LRU Cache
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 i...
分类:其他好文   时间:2014-09-24 10:31:06    阅读次数:251
用LinkedHashMap用实现LRU Cache
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 i...
分类:其他好文   时间:2014-09-24 09:40:46    阅读次数:177
Leetcode: LRU Cache
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 ...
分类:其他好文   时间:2014-09-21 07:23:30    阅读次数:370
[leetcode] LRU Cache @ Python
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu...
分类:编程语言   时间:2014-09-16 03:53:49    阅读次数:270
LRU Cache
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu...
分类:其他好文   时间:2014-09-13 20:05:25    阅读次数:225
【LeetCode】LRU Cache
题外话:才连续写了几篇博客,博客排名竟然就不再是“千里之外”了,已经进入2万名之内了。再接再厉,加油! Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key)...
分类:其他好文   时间:2014-08-31 17:17:51    阅读次数:181
由LeetCode的LRU Cache谈到操作系统中LRU算法
1 class LRUCache{ 2 public: 3 LRUCache(int capacity) { 4 size = capacity; 5 } 6 int get(int key) { 7 if(cacheMap.find(key...
分类:其他好文   时间:2014-08-30 16:23:09    阅读次数:206
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