3 papers
cs.OS2026
Argus: Agentic, Reference-Calibrated, Tree-Guided, System-Software-Level Bottleneck Localization
Vlad-Petru Nitu, Harsh Songara, Konstantinos Sgouras +3
Operating system (OS) code can account for a substantial share of CPU execution time. First, as application logic is offloaded to heterogeneous accelerators (e.g., GPUs), the CPU i…
cs.AR2026
Valinor: Architectural Support for Fast, Energy-Efficient and Programmable Physical Memory Allocation
Konstantinos Kanellopoulos, Spiros Galanopoulos, Konstantinos Sgouras +7
Physical memory allocation establishes virtual-to-physical mappings on demand. In current systems, each minor page fault traps into the kernel and triggers pipeline flushes, stalls…
cs.AR2025
Revelator: Rapid Data Fetching via System-Software-Guided Hash-based Speculative Address Translation
Konstantinos Kanellopoulos, Konstantinos Sgouras, Harsh Songara +7
Address translation is a major performance bottleneck in modern computing systems. Predicting the physical address (PA) of requested data before address translation completes can h…