WebAssembly, known as Wasm, is an interpreted portable bytecode execution format that is growing in popularity. In this work, we perform a simple pair of characterizations of Wasm. Statically, we compare the instruction set to other portable bytecodes ...

The Boehm-Demers-Weiser collector is a conservative garbage collection scheme generally used for C/C++ applications. In this demo, we will show the collector running with C benchmark programs on a new CHERI-style hardware capability platform, ...

Picking the right data structure for the right job is one of the key challenges for every developer. However, especially in the realm of object-oriented programming, the memory layout of data structures is often still suboptimal for certain data access ...

Vector instructions are a class of processor instructions that allow data level parallelism by performing the same instruction on multiple pieces of data, instead of a single one as usual. There are two possible approaches to achieve this: add virtual ...

How concurrent compacting collectors store and manage forwarding information is crucial for their performance.

In this paper, we propose CFW, a representation technique for forwarding information that guarantees that forwarding information for an ...

Dynamic taint analysis is a popular analysis technique which tracks the propagation of specific values while a program executes. To this end, a taint label is attached to these values and is dynamically propagated to any values derived from them. ...

The RISC-V Instruction Set Architecture (ISA) is an open-source, modular and extensible ISA. The ability to add new instructions into a dedicated core opens up perspectives to accelerate VM components or provide dedicated hardware IPs to applications ...

Garbage collectors provide memory safety, an important step toward program correctness. However, correctness of the collector itself can be challenging to establish, given both the style in which such systems are written and the weakly-ordered memory ...

Trusted execution environments (TEEs) gained significant traction in recent years. They have become the foundation of Confidential Computing in cloud services, where certain security properties can be guaranteed on untrusted servers. Despite this ...

Compiler optimizations are often based on hand-crafted heuristics to guide the optimization process. These heuristics are designed to benefit the average program and are otherwise static or only customized by profiling information. We propose machine-...

Today’s huge memories make it possible to store and process large data structures in memory instead of in a database. Hence, accesses to this data should be optimized, which is normally relegated either to the runtimes and compilers or is left to the ...