There are several headers related to cache in http:1. Pragma: Only the fixed no-Cache value can be used in HTTP/1.0 to disable browser cache.2. Expires: Used to specify when the cached document is deemed to have expired, in GMT format. if the date
1. The register is the component part of the central processing Unit. Registers are high-speed storage parts with limited storage capacity that can be used to hold instructions, data and addresses. In the control unit of the central processor, the
1. Cache: Buffer, is a cache, is located between the CPU and the main memory of small but fast memory, because the CPU speed is much higher than the speed of main memory, the CPU from memory to read the data to wait a long time, and The cache holds
I. What is PC?
"Then Pc = PC + 1", which is often said by the teacher.
This is not completely correct. In the case of a self-increment of one in the PC, it is pointed out that in the case of non-pipeline, the pointer is obtained, decoded, and the
In the embedded system, the cache is located between the CPU and the DDR, is a SRAM, read and write performance is much higher than the DDR, using the cache line provides prefetching function, balance between CPU and DDR performance difference,
There are two ways to improve the performance of a system:1) constantly improve the performance of a core by constantly improving freq, reducing VT, which will increase power (dynamic,leakage)2) Increase the number of processorARM's Big-little
Usage of cache in embedded processors
Author:Northwestern University of Technology Wang Yan Wu Xuguang Zhao xunfeng
With the development of embedded computer applications, the clock speed of embedded CPU continues to increase, which leads to a
Add expires and Cache-control headersExpires and Cache-control are actually cache control headers in HTTP, which mainly affect the client's request behavior and server-side response.Many of this article comes from the HTTP authoritative guide, and
MySQL performance optimization and Architecture Design-Chapter 1 Utilization of Cache and Search in scalability design, mysql Optimization
Chapter 1 scalability design: Utilization of Cache and Search
Preface:
The scalable architecture solutions
Xiao Kee: I am phper, on C #. NET development can only be said to understand, but also write a slightly simpler function of the PC client program, the following is I developed a "financial shorthand" PC client software, the whole process of
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