
Cache 和 Buffer 都是缓存,主要区别是什么? - 知乎
简单说,Buffer的核心作用是用来缓冲,缓和冲击。比如你每秒要写100次硬盘,对系统冲击很大,浪费了大量时间在忙着处理开始写和结束写这两件事嘛。用个buffer暂存起来,变成每10秒 …
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, …
What is the difference between buffer and cache memory in Linux?
Buffer is an area of memory used to temporarily store data while it's being moved from one place to another. Cache is a temporary storage area used to store frequently accessed data for rapid …
Convert a JSON Object to Buffer and Buffer to JSON Object back
Jan 31, 2017 · Reading the page you linked, it states that the buffer is converted to a string (using Buffer.toString) using utf8 encoding, and while normally this is not an issue, if the buffer was …
What is buffer? What are buffered reads and writes?
Aug 10, 2010 · Once the device is ready, the another buffer may take the current buffer's place and the consuming device will process the data in the first buffer. In this manner, the slower …
theory - What's a buffer? - Stack Overflow
May 26, 2015 · Usually a buffer holds a lot more than a single variable, but there is of course special cases where a buffer is quite small also. A local variable could be used as a buffer, so …
geopandas - How to create an accurate buffer of 5 miles around a ...
Jul 10, 2018 · So if you define your point as P = [y, x] then you can create a buffer around it of lets say 4 minutes which are approximately 5 miles: buffer = 0.04. The bounding box then is easily …
A dynamic buffer type in C++? - Stack Overflow
One more vote for std::vector. Minimal code, skips the extra copy GMan's code do: std::vector<char> buffer; static const size_t MaxBytesPerRecv = 1024; size_t bytesRead; do { …
Node.js: How to read a stream into a buffer? - Stack Overflow
Jan 11, 2013 · As Buffer: <Buffer 7b 0a 20 20 20 20 22 74 79 70 65 22 3a 20 22 6d 6f 64 75 6c 65 22 0a 7d> As Object: { type: 'module' } As String: { "type": "module" } Share Improve this …
node.js - Convert string to buffer Node - Stack Overflow
May 25, 2016 · I am using a library which on call of a function returns the toString of a buffer. The exact code is . return Buffer.concat(stdOut).toString('utf-8'); But I don't want string version of it. …