The ability of cache memory to improve a computer's performance relies on the concept of locality of reference. Locality describes various situations that make a system more predictable. Cache memory takes advantage of these situations to create a pattern of memory access that it can rely upon. ...
Synthesis lectures on Computer Architecture中_A Primer on Memory Consistency and Cache Coherence (second edition) _和_Shared Memory Synchronization_两本书的笔记。为什么把它们放在一起:(1)Shared memory synchronization是实现并行编程的重要方法之一;(2)而在多核系统中,单纯让各核遵循program order并不能保证同...
关键词:computer architecture(计算机体系结构), memory consistency(内存连贯性[1]), cache coherence(缓存一致性[1]), shared memory(共享内存), memory systems(内存系统), multicore processor(多核处理器), heterogeneous architecture(异构架构), GPU(图形处理单元), accelerators(加速器[2]), semantics(语义学...
In order to maximize the hit ration in your system, you need on one hand, choose what to place in the cache memory and on the other hand what to...
Ch 1. Introduction to Computer Architecture &... Ch 2. Data Representation in Digital... Ch 3. Arithmetic in Computer Binary Ch 4. Boolean Logic Gates & Functions Ch 5. Digital Circuit Theory: Combinational... Ch 6. Digital Circuit Theory: Sequential... Ch 7. How Memory Functions in a...
Kernels use thecopy on writemechanism, enabled by page table entries, to implement private mappings. In the example below, both render and another program called render3d (am I creative or what?) have mapped scene.dat privately. Render then writes to its virtual memory area that maps the ...
cache line -- a block of databytesread by the CPU, either from cache levels or the main memory -- but each CPU works on a different variable, resulting in the invalidation of the cache line for a CPU. Multiple occurrences of false sharing can affect system performance or cause it to ...
Previously we looked at how the kernel manages virtual memory for a user process, but files and I/O were left out. This post covers the important and often misunderstood relationship between files and
原文地址:http://duartes.org/gustavo/blog/post/what-your-computer-does-while-you-wait Page Cache, the Affair Between Memory and Files 工作于内存和文件之间的页缓存 Previously we looked at how the kernelmanages virtual memoryfor a user process, but files and I/O were left out. This post cov...
are. Kernels use the copy on write mechanism, enabled by page table entries, to implement private mappings. In the example below, bothrenderand another program calledrender3d(am I creative or what?) have mappedscene.datprivately.Renderthen writes to its virtual memory area that maps the file...