> 7.5% sounds like a small improvement for a structural change introducing ML profile prediction
What world do you live in? There's a cppcon video from 2013 where andrei alexandrescu talks about optimizing the hhvm (hip-hop php compiler) at FB. He mentions that 1% improvement pays for his best engineer for 10 years. I don't know how widely graalvm is deployed but I wouldn't be surprised if it's at similar scale and thus that unimpressive 7.5% translates into ~75MM in savings.
- 7.5% sounds like a small improvement for a structural change introducing ML profile prediction
- a ~250KB model making improvements in an area where humans have been working for a long time seems impressive