On Sat, May 12, 2018 at 04:27:04PM +0800, Weiwei Jia wrote: > Dear all, > > Recently, we made a few improvements on effectively utilizing Pause > Loop Exiting (PLE) support for higher throughput on virtualized > systems. Basically, it solves two problems: 1) how to adjust > PLE_Window; 2) how to select virtual CPUs to schedule on VM_EXITs > caused by PLE. Our tests with standard benchmarks show that the > approach can improve performance by up to 49%. The approach shows > promising performance and is easy to implement. We think that it would > be wonderful if Linux/KVM and XEN can consider the approach. > > We already have a prototype implementation based on KVM (Linux Kernel > 3.19.8). Our patch for Linux Kernel 3.19.8 and the paper describing > our idea are available in Github repository [1][2][3]. We are pleased > to revise our patch in order to merge it into Linux/KVM and XEN. We > hope that you can test and adopt our approach/techniques. We are > pleased to get some comments/suggestions on the approach and on how > the idea can be adopted/tested by Linux/KVM and XEN. Thank you. > > [1] APPLES paper: https://github.com/sysmen/apples/tree/master/paper > [2] APPLES patch: > https://github.com/sysmen/apples/blob/master/patches/3.19.8-APPLES.patch > [3] APPLES patch README: > https://github.com/sysmen/apples/blob/master/patches/README.txt > Is PV spinlock involved in your test? There is no mention of it in your paper. Wei. > Best Regards, > Sysmen Research Group > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxxx > https://lists.xenproject.org/mailman/listinfo/xen-devel
