VEE 2022
Tue 1 Mar 2022
Tue 1 Mar 2022 16:10 - 16:30 at Online - Session-2: Runtime Virtualization Chair(s): Mingyu Wu

The Boehm-Demers-Weiser Garbage Collector (BDWGC) is a widely used, production-quality memory management framework for C and C++ applications. In this work, we describe our experiences in adapting BDWGC for modern capability hardware, in particular the CHERI system, which provides guarantees about memory safety due to runtime enforcement of fine-grained pointer bounds and permissions. Although many libraries and applications have been ported to CHERI already, to the best of our knowledge this is the first analysis of the complexities of transferring a garbage collector to CHERI. We describe various challenges presented by the CHERI microarchitectural constraints, along with some significant opportunities for runtime optimization. Since we do not yet have access to capability hardware, we present a limited study of software event counts on emulated micro-benchmarks. This experience report should be helpful to other systems implementors as they attempt to support the ongoing CHERI initiative.

Tue 1 Mar

Displayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change

15:30 - 16:30
Session-2: Runtime VirtualizationResearch Papers at Online
Chair(s): Mingyu Wu Shanghai Jiao Tong University
Enabling Pipeline Parallelism in Heterogeneous Managed Runtime Environments via Batch Processing
Research Papers
Florin Blanaru The University of Manchester, Athanasios Stratikopoulos The University of Manchester, Juan Fumero University of Manchester, UK, Christos Kotselidis KTM Innovation / The University of Manchester
DOI Pre-print
Transparent and Lightweight Object Placement for Managed Workloads atop Hybrid Memories
Research Papers
Zhe Li Shanghai Jiao Tong University, Mingyu Wu Shanghai Jiao Tong University
Capability Boehm: Challenges and Opportunities for Garbage Collection with Capability Hardware
Research Papers
Dejice Jacob University of Glasgow, UK, Jeremy Singer University of Glasgow
Link to publication DOI Pre-print

Information for Participants
Tue 1 Mar 2022 15:30 - 16:30 at Online - Session-2: Runtime Virtualization Chair(s): Mingyu Wu
Info for session

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