Does the 16 come from maintenance_io_concurrency, which is also used to limit the prefetch depth?
I still think some details are missing for a true explanation of what is going on. Where does the random access pattern come from? Is prefetch unnecessarily performed for full-page images?
I still think some details are missing for a true explanation of what is going on. Where does the random access pattern come from? Is prefetch unnecessarily performed for full-page images?