阿里云
>
存储
>
计算机系统存储
计算机系统存储
计算机系统
层次
存储
结构
当前
计算机系统
一般会采用层次结构
存储
数据,请介绍下典型计算机
存储
系统一般分为 哪几个层次,为什么采用分层
存储
数据能有效提高程序的执行效率?答:所谓
存储
系统的层次结构,就是把各种不同
存储
容量,存取速度和价格的存储器按照层次...
计算机系统
的层次
存储
结构详解
只读存储器 在程序的执行过程中只读 ②存取时间与物理地址有关(串行访问)顺序存取存储器 磁带 直接存取存储器 磁盘(3)按在
计算机
中的作用分类 2、存储器的层次结构(1)存储器三个主要特性的关系(2)缓存—主存层次和主存—辅
存
层次 ...
深入理解
计算机系统
cp1:
存储
单位与编码
原文:深入理解
计算机系统
cp1:
存储
单位与编码 作者:Chor Fundebug经授权转载,版权归原作者所有。1.
存储
单位 位:即 bit,表示二进制位,要么是 0,要么是 1。它是计算机内部数据
存储
的最小单位。比如 11010100 共有8个二进制位,是一个8...
6、深入理解
计算机系统
笔记:存储器层次结构,
存储
技术(1)
1、如果你的程序需要的数据是
存储
在CPU寄存器中的,那么在执行期间,在零个周期内就能访问到它们。如果
存储
在高速缓冲中,需要1~10个周期。如果
存储
在主存中,需要50~100个周期。如果
存储
在磁盘上,需要约20000000个周期。xml:namespace...
7、深入理解
计算机系统
笔记:存储器层次结构,
存储
技术(2)
间隙
存储
用来标识扇区的格式化位。注:spindle(主轴),platter(盘片),cylinder(柱面)2、磁盘容量(扇区大小×每条磁道平均扇区数×每个面磁道的磁道数×每个盘片的面数×每个磁盘的盘数)3、对于与DRAM和SRAM容量相关的单位,通常K=210,...
10、深入理解
计算机系统
笔记:存储器层次结构,高速缓存存储器(2)
如虚拟存储器
系统
中的TLB,它缓存页表项。3、写回(write back):尽可能推迟存储器更新,只有当替换算法要驱逐已更新的块时,才把它写回存储器。处理不命中:写分配(write-allocate),即加载相应的存储器块到高速缓存中,然后更新这个...
深入理解
计算机系统
-之-数值
存储
(六)-以不同的方式窥视内存
浮点数写,整数读 好了知道了浮点数的
存储
方式,那么我们的问题来了,如果我们定义了一个浮点数,那么如果以整数的格式去读取它,会发生什么奇妙的现象 代码示例 我们对上一篇文章中修改main函数为如下形式 我们定义了变量float f=9.0f,...
8、深入理解
计算机系统
笔记:存储器层次结构,局部性
3、存储器
存储
结构 4、关于缓存 注:TLB:Translation Lookaside(后备)Buffer,MMU:Memory Management Unit,AFS:Andrew File System,NFS:Network FileSystem.latency(执行时间)。
深入理解
计算机系统
-之-数值
存储
(三)-原码、反码、补码和移码详解
但是注意因为实际上是使用以前的-0的补码来表示-128,所以-128并没有原码和反码表示.(对-128的补码表示[1000 0000]补
算
出来的原码是[0000 0000]原,这是不正确的)使用补码,不仅仅修复了0的符号以及存在两个编码的问题,而且还能够多表示一个...
11、深入理解
计算机系统
笔记:存储器层次结构,利用局部性
(内部循环)步长为1的引用模式是好的,因为存储器层次结构中所有层次上的缓存都是将数据
存储
为连续的块(空间局部性)。(通过按照数据对象
存储
在存储器中的顺序来读数据)2、使用分块来提高时间局部性 分块的大致思想是将一个程序的数据...
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存储
阿里云是目前国内规模最大的云存储服务商,采用自研飞天大规模分布式存储引擎“盘古2.0”,支撑双11轻松度过吞吐TB/s,IOPS上亿/s的压力,为全球企业提供如磐石的可靠存储服务。
了解更多存储产品
基础存储
对象存储 OSS
表格存储 Tablestore
数据存储
日志服务 SLS
相册与网盘服务 PDS
混合云存储
混合云存储阵列 SA
混合云容灾 HDR
数据迁移
闪电立方Datatransport
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存储
阿里云是目前国内规模最大的云存储服务商,采用自研飞天大规模分布式存储引擎“盘古2.0”,支撑双11轻松度过吞吐TB/s,IOPS上亿/s的压力,为全球企业提供如磐石的可靠存储服务。
了解更多存储产品
基础存储
对象存储 OSS
表格存储 Tablestore
数据存储
日志服务 SLS
相册与网盘服务 PDS
混合云存储
混合云存储阵列 SA
混合云容灾 HDR
数据迁移
闪电立方Datatransport