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Relational databases provide a wealth of functionality to a wide range of applications. Yet, there are tasks for which they are less than optimal, for instance when processing becomes more complex (e.g., regular expression evaluation, data analytics) or the data is less structured (e.g., text or long strings). With the increasing amount of user-generated data stored in relational databases, there...
Accelerating relational databases in general and SQL in particular has become an important topic given thechallenges arising from large data collections and increasinglycomplex workloads. Most existing work, however, has beenfocused on either accelerating a single operator (e.g., a join) orin data reduction along the data path (e.g., from disk to CPU). In this paper we focus instead on the system...
Soft processors are one way to raise the computational abstraction of FPGAs while keeping the advantages of reconfigurable hardware, such as adaptability, deterministic performance and high performance/watt. Software developers can quickly build, test and deploy applications using familiar tools while still leveraging important optimizations such as application-specific custom instructions. However,...
TCP/IP is widely used both in the Internet as well as in data centers. The protocol makes very few assumptions about the underlying network and provides useful guarantees such as reliable transmission, in-order delivery, or control flow. The price for this functionality is complexity, latency, and computational overhead, which is especially pronounced in software implementations. While for Internet...
Relational databases execute user queries through operator trees, where each operator has a well defined interface and a specific task (e.g., arithmetic function, pattern matching, aggregation, etc.). Hardware acceleration of compute intensive operators is a promising prospect but it comes with challenges. Databases execute tens of thousands of different queries per second. Thus, if only one specific...
Energy efficiency is one of the major challenges in datacenters, and a promising way to tackle it are microservers. These scaled down machines with smaller CPUs, less peripherals and tighter integration improve energy efficiency, but often at the expense of lower performance. In this work we explore the tailoring of standard software components to specialized hardware as a way to get the energy efficiency...
TCP/IP is the predominant communication protocol in modern networks but also one of the most demanding. Consequently, TCP/IP offload is becoming increasingly popular with standard network interface cards. TCP/IP Offload Engines have also emerged for FPGAs, and are being offered by vendors such as Intilop, Fraunhofer HHI, PLDA and Dini Group. With the target application being high-frequency trading,...
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