* Nai Xia (nai.xia@xxxxxxxxx) wrote: > Compared to the first version, this patch set addresses the problem of > dirty bit updating of virtual machines, by adding two mmu_notifier interfaces. > So it can now track the volatile working set inside KVM guest OS. > > V1 log: > Currently, ksm uses page checksum to detect volatile pages. Izik Eidus > suggested that we could use pte dirty bit to optimize. This patch series > adds this new logic. > > Preliminary benchmarks show that the scan speed is improved by up to 16 > times on volatile transparent huge pages and up to 8 times on volatile > regular pages. Did you run this only in the host (which would not trigger the notifiers to kvm), or also run your test program in a guest? thanks, -chris -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>