"consider tuning prefetcher", but how?

[tuxick]

The one bit in this nice kstat-analyzer that's not helping me much is the "prefetch hit rate is low, consider tuning prefetcher". Can't it suggest the relevant settings/parameters?

[richardelling]

unfortunately, tuning is rarely that simple. But we can certainly add some links, like https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#prefetch