
Cache 和 Buffer 都是缓存,主要区别是什么? - 知乎
Buffer的核心作用是用来缓冲,字面意思缓慢冲击。 比如你每秒要写100次硬盘,对系统冲击很大,浪费了大量时间忙着写处理,用个buffer缓冲区暂存起来,变成每秒要写10次硬盘,对系统 …
terminology - What does it mean by buffer? - Stack Overflow
Here, the buffer array is used to store the data read by read (2) until it's written; then the buffer is re-used. There are more complicated buffer schemes used, for example a circular buffer, …
Convert a JSON Object to Buffer and Buffer to JSON Object back
Jan 31, 2017 · I have a JSON object and I'm converting it to a Buffer and doing some process here. Later I want to convert the same buffer data to convert to valid JSON object. I'm working …
Javascript - How to convert buffer to a string? - Stack Overflow
Mar 7, 2019 · This doesn't really replies the question. I know it's already string, but he needs to do as the best answer states (Convert from the Buffer-string-like representation to string).
What is a buffer overflow and how do I cause one?
Feb 22, 2009 · In this context, a buffer is a portion of memory set aside for a particular purpose, and a buffer overflow is what happens when a write operation into the buffer keeps going past …
What is buffer? What are buffered reads and writes?
Aug 10, 2010 · A buffer is generally a portion of memory that contains data that has not yet been fully committed to its intended device. In the case of buffered I/O, generally there is a fast …
Node.js: How to read a stream into a buffer? - Stack Overflow
Jan 11, 2013 · Note: this solely answers "How to read a stream into a buffer?" and ignores the context of the original question. ES2018 Answer Since Node 11.14.0, readable streams …
What is the difference between buffer and cache memory in Linux?
Buffers are associated with a specific block device, and cover caching of filesystem metadata as well as tracking in-flight pages. The cache only contains parked file data. That is, the buffers …
theory - What's a buffer? - Stack Overflow
May 26, 2015 · A buffer is a chunk of memory (usually an array) that's used to copy a small chunk of data from a huge data source, so you can process it at whatever pace your computer or …
linux - How do I increase the scrollback buffer in a running screen ...
May 28, 2017 · Lets say I have a currently running screen session I am interacting with through putty. I've realized that the scrollback buffer is too small and would like to increase it without …