> Transparent huge pages are not helpful for DB workload which there is a lot > of > shared memory
Hmm. Perhaps they should be. If a database allocates most[1] of the memory on a machine to a shared memory segment - that *ought* to be a candidate for using transparent huge pages. Now that we have them they seem a better choice (much more flexibility) than hugetlbfs. -Tony [1] I've been told that it is normal to configure over 95% of physical memory to the shared memory region to run a particular transaction based benchmark with one commercial data base application. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
