Can’t tell you much about the performance impact of a write barrier, but Java’s new ZGC went with read barriers (trading off some throughput) while making the p

Can’t tell you much about the performance impact of a write barrier, but Java’s new ZGC went with read barriers (trading off some throughput) while making the pause times independent of heap size, not sure if that’s what you were referencing, but if not you might find it interesting.