How much power does gzip save on IoT web access?
Intro I've recently been working on an optimized library for deflate/zip/gzip decompression. I released it to Github and the Arduino Library Manager as zlib_turbo . With zlib_turbo, I've been exploring HTTP GET requests on the ESP32 and enabling gzip compression to reduce the payload size. I assumed that asking the server to compress the content and sending it as gzip would reduce the connection time. I decided to test how much time and energy this could save. When using the ESP32, or other network-capable MCUs, how much power can we save by requesting compressed content? What is gzip compression? Before getting into the project details, a prerequisite is a quick overview of gzip. If you're already familiar with it, you can skip to the next section. gzip is an ancient (relative to the age of the internet) standard based on the deflate compression algorithm. gzip is a file container used to store a single 'deflated' file. There are simple GUI and command line tool...