sleepycat takes in data from stdin and outputs on stdout at a given number of lines per second (LPS).
I was writing a program to parse a log file and draw graphs in real-time. I needed a way to repeatedly test it without generating log files from the source application.
Right now, this project is just an attempt to get something running. It doesn't take into account the time it takes to print a line, so it sleeps for too long and the actual LPS ends up being lower than the target. It's not so much of a big deal with smaller targets, but it struggles to reach higher numbers.
You can test the accuracy using the following command:
cargo run --release < access.log | pv --line-mode --rate > /dev/null