Alain Tchana

Mitigating performance unpredictability in the IaaS using the Kyoto principle

2016

Performance isolation is enforced in the cloud by setting to each virtual machine (VM) a given fraction of each resource type (physical memory, processor, and IO bandwidth). However, microarchitectural-level resources such as processor's caches cannot …

StopGap

2017

In order to reduce the energy consumption, virtualized infrastructure providers (IaaS) usually pack virtual machines (VMs) on as few servers as possible. This process, called VM consolidation, can be ineffective when the amount of available …

Everything You Should Know About Intel SGX Performance on Virtualized Systems

2019 · ACM SIGMETRICS Performance Evaluation Review

Intel SGX has attracted much attention from academia and is already powering commercial applications. Cloud providers have also started implementing SGX in their cloud offerings. Research efforts on Intel SGX so far have mainly focused …

rgpdOS: GDPR Enforcement By The Operating System

2023

Currently, it is very hard for companies driven by personal data to make their applications GDPR-compliant, especially if those applications were developed before the GDPR was established. We present rgpdOS, a GDPR-aware operating system that …