Chuandong Li

ORCID: 0009-0007-7449-5105
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About
Contact & Profiles
Research Areas
  • Cloud Computing and Resource Management
  • Parallel Computing and Optimization Techniques
  • Advanced Data Storage Technologies
  • Security and Verification in Computing
  • Ginkgo biloba and Cashew Applications

Peking University
2022-2025

The tiered-memory system can effectively expand the memory capacity for virtual machines (VMs). However, virtualization introduces new challenges specifically in enforcing performance isolation, minimizing context switching, and providing resource overcommit. None of state-of-the-art designs consider address these challenges; we observe that a VM with tiered incurs up to 2× slowdown compared DRAM-only VM. We propose vTMM , hardware-software collaborative management framework virtualization....

10.1145/3639564 article EN ACM Transactions on Computer Systems 2024-01-15

The memory demand of virtual machines (VMs) is increasing, while the traditional DRAM-only system has limited capacity and high power consumption. tiered can effectively expand increase cost efficiency. Virtualization introduces new challenges for tiering, specifically enforcing performance isolation, minimizing context switching, providing resource overcommit. However, none state-of-the-art designs consider virtualization thus address these challenges; we observe that a VM with incurs up to...

10.1145/3552326.3587449 article EN 2023-05-05

As more data-intensive tasks with large footprints are deployed in virtual machines (VMs), huge pages widely used to eliminate the increasing address translation overhead. However, once page mapping is established, all base regions share a single extended table (EPT) entry, so that hypervisor loses awareness of accesses regions. None state-of-the-art solutions can obtain access information at granularity for pages. We observe this lead incorrect decisions by hypervisor, such as data...

10.48550/arxiv.2307.10618 preprint EN other-oa arXiv (Cornell University) 2023-01-01

The memory demand of virtual machines (VMs) is increasing, while DRAM has limited capacity and high power consumption. Non-volatile (NVM) an alternative to DRAM, but it latency low bandwidth. We observe that the VM with heterogeneous may incur up a $1.5\times$ slowdown compared VM, if not managed well. However, none state-of-the-art management designs are customized for virtualization on real system. In this paper, we propose HMM-V, Heterogeneous Memory Management system Virtualization....

10.48550/arxiv.2209.13111 preprint EN other-oa arXiv (Cornell University) 2022-01-01
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