On Thu, May 11, 2017 at 11:17 AM, Stefan Hajnoczi <stefanha@xxxxxxxxxx> wrote: > On Wed, May 10, 2017 at 09:26:00PM +0530, Pankaj Gupta wrote: >> We are sharing initial project proposal for >> 'KVM "fake DAX" device flushing' project for feedback. >> Got the idea during discussion with 'Rik van Riel'. > > CCing NVDIMM folks. > >> >> Also, request answers to 'Questions' section. >> >> Abstract : >> ---------- >> Project idea is to use fake persistent memory with direct >> access(DAX) in virtual machines. Overall goal of project >> is to increase the number of virtual machines that can be >> run on a physical machine, in order to increase the density >> of customer virtual machines. >> >> The idea is to avoid the guest page cache, and minimize the >> memory footprint of virtual machines. By presenting a disk >> image as a nvdimm direct access (DAX) memory region in a >> virtual machine, the guest OS can avoid using page cache >> memory for most file accesses. How is this different than the solution that Clear Containers came up with? https://lwn.net/Articles/644675/
