Dynamic Pacing / Rate?

[mgale]

Question

Hello,

Is it possible to adjust the rate while vegeta is running currently?

For example I would like to start with: cat requests.txt | ./vegeta attack -rate 1/s | tee /tmp/results.bin | ./vegeta report --every 1s

Then check my metrics, warm cache, etc and then slowly increase the rate over time, potentially until my application starts to fail and then lower the rate again until stability returns.

If the current CLI does not support this is it possible using vegeta as a lib and implementing a custom Pacer?

Thank you.