Not on hand, sorry, I don't follow it that closely. My advice if you're interested in ultra low pause time designs is to look more at ZGC and maybe Shenandoah, and look for detailed comparisons to the other JVM GCs (especially G1 which has also seen some advances since it originally was designed). I'm not aware of any other ecosystem besides the JVM's that's had as much GC innovation in the last 15 years (one has to include Azul's now-old proprietary work to get that time span since ZGC is just now catching up to it) -- not to mention exposure to real and varied workloads. And if you just restrict to OpenJDK, the last 2 or 3 years have seen a lot of improvement that even many Java programmers still have no idea of if they're still stuck in Java 8 land.