[Fall 2023] New Semester Research Meeting

Carnegie Mellon University's renowned Database Group is thrilled to announce the kickoff of its Fall 2023 semester with a highly anticipated meeting on Thursday, August 31st. This gathering promises to be an extraordinary occasion as the members embark on a vainglorious retrospective, celebrating the group's remarkable research achievements over the years, as well as to begin discussions on new projects.... Read More

On Embedding Database Management System Logic in Operating Systems via Restricted Programming Environments (Matt Butrovich)

Speaker:

Matt Butrovich

The rise in computer storage and network performance means that disk I/O and network communication are often no longer bottlenecks in database management systems (DBMSs). Instead, the overheads associated with operating system (OS) services (e.g., system calls, thread scheduling, and data movement from kernel- space) limit query processing responsiveness. To avoid these overheads, user-space applications prioritizing performance over simplicity can... Read More

[Summer 2023] Towards a Hardware-software Approach for High-performance Databases (Jignesh Patel)

Speaker:

Jignesh Patel

In various industries, in-database analytics are crucial for decision-making. Yet, the growing amount of data presents challenges as traditional methods become excessively time-consuming and costly. Moore's Law and Dennard scaling, which previously aided data-intensive analytics, are reaching their physical limits. A new approach is needed to handle analytics workloads. The speed gap between processing units and memory creates bottlenecks for... Read More

[Spring 2023] 15-721 Final Project Presentations

Carnegie Mellon University is thrilled to announce the upcoming final project presentations for the Advanced Database Systems course for the Spring 2023 semester. This eagerly awaited event showcases the hard work and innovation of the university's talented students as they present their cutting-edge projects to an audience of esteemed guests and fellow students. The presentations promise to deliver captivating insights... Read More

Return of the Database Machines? Towards a Hardware-Software Approach for High-performance Databases (Jignesh Patel)

Speaker:

Jignesh Patel

Analytic database applications have an insatiable appetite for higher performance. In the past, a large part of this appetite was met by leveraging the gift of Moore’s Law. However, the slowing down of Moore’s Law now requires a new approach. Fortunately, the hardware landscape is currently undergoing a Cambrian explosion of new architectures. In this talk, I will describe how... Read More

MS Thesis Defense: High Performance DBMS Design for Intelligent Query Scheduling (Deepayan Patra)

Speaker:

Deepayan Patra

Decades of research in the field of database management systems (DBMSs) have focused on improving system performance with impressive results. Modern analytical databases take advantage of innovative methods such as vectorization and compilation to improve single query performance, use supporting data structures such as indexes or views to reduce data access requirements, and support the execution of multiple queries in... Read More

MS Thesis Defense: Extendable Rule-Based Action Generation for Self-Driving Database Systems (Mike Xu)

Speaker:

Mike Xu

Database management systems (DBMSs) have become more complex to meet increasingly demanding usage. To owners and operators, the need for a self-driving DBMS that can automatically tune and optimize itself without human intervention is apparent now more than ever. Such a self-driving DBMS considers a set of candidate actions to apply to reach a configuration that improves performance for a... Read More

[15-445/645] Fall 2022 Live Call-in Q&A Lecture

Speaker:

Andy Pavlo

For the final lecture in CMU's Introduction to Database Systems (Fall 2022) course, we are allowing anyone to call in with their database questions. The lecture will be livestreamed via Youtube and you will be able to ask your questions to Prof. Andy Pavlo directly. Livestream: https://youtu.be/MxOKUt6LeeU Audience Call-in: https://cmu.zoom.us/j/99783788428?pwd=R2ZSd2x0SUFnRlNIak5TVk5ubmFjQT09 (Must have Zoom account) Read More

[¡Databases! 2022] CrateDB: Distributed SQL Database Built on Top of Lucene (Marios Trivyzas)

Speaker:

Marios Trivyzas

System:

CrateDB

Video:

YouTube

CrateDB is a SQL, open-source, distributed database that makes storage and analysis of massive amounts of data simple and efficient. It offers effective data handling due to a high degree of scalability and availability, real-time query performance, and extensible data models. In this talk, we will discuss the fundamental concepts of CrateDB and highlight what makes it unique in comparison... Read More

[¡Databases! 2022] SplinterDB: A Key-Value Store for Modern Storage Devices (Alex Conway)

Speaker:

Alex Conway

System:

SplinterDB

Video:

YouTube

We built SplinterDB to address two trends. The first is the modern storage hardware offers significantly higher bandwidth and lower latency. The second is that modern applications at VMware and elsewhere store fine-grain data, such as metadata. Current state-of-the-art key-value stores such as RocksDB fail to fully exploit the capabilities of these devices on these types of workloads. SplinterDB is... Read More