KVM Forum 2021 has ended
Virtual Event | September 15-16, 2021
View More Details

The Sched app allows you to build your schedule but is not a substitute for your event registration. In addition, you must be registered for KVM Forum to participate in the sessions. If you have not registered but would like to join us, please go to the event registration page to purchase a registration.

This schedule is automatically displayed in Coordinated Universal Time (UTC)Please select from the drop-down menu to the right to see the schedule in your preferred timezone above "Filter by Date."
Back To Schedule
Wednesday, September 15 • 11:30 - 11:55
Towards a More Efficient Synchronization in KVM - Wanpeng Li, Tencent Cloud

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Feedback form is now closed.
The KVM hypervisor is at the core of cloud computing, Virtual Machine based approaches to workload consolidation, as seen in IaaS cloud as well as datacenter platforms, have long had to contend with performance degradation caused by synchronization primitives inside the guest environments. These primitives can be affected by virtual CPU preemptions by the host scheduler that can introduce delays that are orders of magnitude longer than those primitives were designed for. In this presentation, Wanpeng Li will discuss lost opportunities in vCPU boost, vCPUs stacking, and RCU-Reader Preemption Problem in VMs etc. Let's have a look at their mitigations.

avatar for Wanpeng Li

Wanpeng Li

Linux Kernel Contributor, Tencent Cloud
Wanpeng Li is a 9 years experienced Linux kernel/virtualization developer who works in Tencent Cloud currently. He mainly focuses on KVM, scheduler and memory management. In KVM, he contributes a lot of features to improve performance and stability. He has worked in the IBM LTC kernel... Read More →

Wednesday September 15, 2021 11:30 - 11:55 UTC
  KVM Track 1
  • Presentation Slides Attached Yes