Author: stergios

The research article entitled “Diciclo: Flexible User-level Services for Efficient Multitenant Isolation” of G. Kappes and S. V. Anastasiadis appears in the May 2024 issue of ACM Transactions on Computer Systems (TOCS). This is the first time that a research group from Greece independently publishes an article in ACM TOCS during the 40 year history of the top systems journal.

The research project entitled “Towards Predictable Performance in Elastic, Reliable and Secure Multitenant Systems (TOPPERS)” has been approved for funding by the Hellenic Foundation for Research & Innovation (HFRI) of the Greek Ministry of Development. TOPPERS will address interesting problems in the cloud systems software that is used to run data-intensive applications in multitenant hosts. The activities include the development of techniques for improved isolation, elasticity, security and reliability of containerized applications. The research team is led by Professor Stergios Anastasiadis and includes Postdoctoral Researcher Dr Giorgos Kappes and Doctoral Candidate Miltiades Vasiliades. TOPPERS starting on 21/11/2023 has a duration of 24 months and is hosted by the Institute of Digital Innovation, University Center for Research and Innovation under the administration of the Research Committee, University of Ioannina. The research project is implemented in the call “Basic research Financing (Horizontal support of all Sciences)” under the National Recovery and Resilience Plan “Greece 2.0” funded by the European Union – NextGenerationEU (HFRI Project Number: 15206).

The article entitled Quantifying the Security Profile of Linux Applications co-authored by Georgios C. Androutsopoulos, Giorgos Kappes and Stergios V. Anastasiadis appeared in the 14th ACM SIGOPS Asia-Pacific Workshop on Systems (APSys 2023) held in Seoul, South Korea (August 24-25th, 2023).

Relaxed Concurrent Queues (RCQs) is a new family of queues that we developed (with Giorgos Kappes) to provide low latency in queue operations and item transfers. Our goal is to improve the responsiveness of the applications and systems running on manycore machines with fast devices. In our work we introduce several new queue algorithms with provable properties on progress, correctness and bounded FIFO distance along with extensive experimental comparisons to representative existing strict and relaxed data structures. Please check our article in the latest issue of ACM Transactions on Parallel Computing for details:

https://dl.acm.org/doi/10.1145/3565514

Stergios V. Anastasiadis has been promoted to the rank of Full Professor in the area of expertise “Operating Systems” at the Department of Computer Science and Engineering, University of Ioannina.

George Androutsopoulos after graduating from our department and working for the Dioni project for six months is moving to the US as PhD Candidate at Purdue University starting in fall 2022. We wish him every success!

Cloud computing is a significant technological innovation that allows the remote access to computing services at the central infrastructures of providers. The offered quality in several cases is specified through guarantees about the reliability and performance of the service along with the privacy of the personal data. Often the free access to cloud services is accompanied by advertisement messages that at some extent can be controlled by the user through available options. In the presentation we examine the user-friendliness and clarity of the interfaces in the control of the offered quality of service. The choice architecture and the help through default options is often specified not only by the preferences of the user but mainly by the priorities of the provider. Thus, there are general issues opened up for the guarantees that the services should provide and their consistency with respect to serving the real needs of the user.

Our work Asterope: A Cross-Platform Optimization Method for Fast Memory Copy appears at the 11th Workshop on Programming Languages and Operating Systems (in conjunction with the 28th ACM Symposium on Operating Systems Principles), Virtual Event, Germany, October 25th, 2021.