On Wed, Apr 20, 2016 at 1:07 AM, Andres Lagar-Cavilla <andreslc@xxxxxxxxxx> wrote: > Andrea, we provide the, ahem, adjustments to > transparent_hugepage_adjust. Rest assured we aggressively use mmu > notifiers with no further changes required. > > As in: zero changes have been required in the lifetime (years) of > kvm+huge tmpfs at Google, other than mod'ing > transparent_hugepage_adjust. We are using kvm + tmpfs to do qemu live upgrading, how does google use this memory model ? I think our pupose to use tmpfs may be the same. And huge tmpfs is a really good improvement for that. > > As noted by Paolo, the additions to transparent_hugepage_adjust could > be lifted outside of kvm (into shmem.c? maybe) for any consumer of > huge tmpfs with mmu notifiers. > Thanks, Wincy -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>