Publication

QFlex 3.0: Fast and Accurate ARM Server Simulation

2025

Abstract

This paper presents QFlex 3.0, the first microarchitectural simulation framework for full-stack ARM workloads running at 10 MIPS. Built on QEMU, a widely used ARM full-system emulator, QFlex 3.0 relies on statistical sampling to cut timing simulation time by two orders of magnitude. Future releases will include enhancements to exploit multicore hosts, interoperable checkpointing to enable versatility across timing simulators, and multi-server simulation for rack-scale computing.

Official source

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2025

Abstract

Official source

Related concepts (31)

Multi-core processor

A multi-core processor is a microprocessor on a single integrated circuit with two or more separate processing units, called cores, each of which reads and executes program instructions. The instructions are ordinary CPU instructions (such as add, move data, and branch) but the single processor can run instructions on separate cores at the same time, increasing overall speed for programs that support multithreading or other parallel computing techniques.

Sampling (statistics)

In statistics, quality assurance, and survey methodology, sampling is the selection of a subset or a statistical sample (termed sample for short) of individuals from within a statistical population to estimate characteristics of the whole population. Statisticians attempt to collect samples that are representative of the population. Sampling has lower costs and faster data collection compared to recording data from the entire population, and thus, it can provide insights in cases where it is infeasible to measure an entire population.

Survey sampling

In statistics, survey sampling describes the process of selecting a sample of elements from a target population to conduct a survey. The term "survey" may refer to many different types or techniques of observation. In survey sampling it most often involves a questionnaire used to measure the characteristics and/or attitudes of people. Different ways of contacting members of a sample once they have been selected is the subject of survey data collection.