Adaptive Access Path Selection for Hardware-Accelerated DRAM Loads

Autor:	Hasso Plattner, Timo Gasda, Matthias Uflacker, Markus Dreseler, Jan Kossmann
Rok vydání:	2018
Předmět:	Hardware_MEMORYSTRUCTURES Computer science business.industry Path (graph theory) Access method Memory bus business Throughput (business) Computer hardware Bottleneck Dram Selection (genetic algorithm)
Zdroj:	Lecture Notes in Computer Science ISBN: 9783319920122 ADC
DOI:	10.1007/978-3-319-92013-9_1
Popis:	For modern main memory database systems, the memory bus is the main bottleneck. Specialized hardware components of large NUMA systems, such as HPE’s GRU, make it possible to offload memory transfers. In some cases, this improves the throughput by 30%, but other scenarios suffer from reduced performance. We show which factors influence this tradeoff. Based on our experiments, we present an adaptive prediction model that supports the DBMS in deciding whether to utilize these components. In addition, we evaluate non-coherent memory access as an additional access method and discuss its benefits and shortcomings.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2b8cc1f4ec14a6c790b42fb1ae5f9e6c https://doi.org/10.1007/978-3-319-92013-9_1 Zobrazit plný text záznamu