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Syst."],"published-print":{"date-parts":[[2024,6,30]]},"abstract":"<jats:p>\n            With the trend towards ever larger \u201cbig data\u201d applications, many of the gains achievable by using specialized compute accelerators become diminished due to the growing I\/O overheads. While there have been several research efforts into computational storage and FPGA implementations of the NVMe interface, to our knowledge, there have been only very limited efforts to move\n            <jats:italic>larger<\/jats:italic>\n            parts of the Linux block I\/O stack into FPGA-based hardware accelerators. Our hardware\/software framework DeLiBA initially addressed this deficiency by allowing high-productivity development of software components of the I\/O stack in user instead of kernel space and leverages a proven FPGA SoC framework to quickly compose and deploy the actual FPGA-based I\/O accelerators. In its initial form, it achieves 10% higher throughput and up to 2.3\u00d7 the I\/Os per second (IOPS) for a proof-of-concept Ceph accelerator running in a real multi-node Ceph cluster. In DeLiBA2, we have extended the framework further to better support\n            <jats:italic>distributed<\/jats:italic>\n            storage systems, specifically by directly integrating the block I\/O accelerators with a hardware-accelerated network stack, as well as by accelerating more storage functions. With these improvements, performance grows significantly: The cluster-level speedups now reach up to 2.8\u00d7 for\n            <jats:italic>both<\/jats:italic>\n            throughput and IOPS relative to Ceph in software in synthetic benchmarks and achieve end-to-end wall-clock speedups of 20% for the real workload of building a large software package.\n          <\/jats:p>","DOI":"10.1145\/3624482","type":"journal-article","created":{"date-parts":[[2023,9,14]],"date-time":"2023-09-14T14:41:12Z","timestamp":1694702472000},"page":"1-32","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["The Open-source DeLiBA2 Hardware\/Software Framework for Distributed Storage Accelerators"],"prefix":"10.1145","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9292-0995","authenticated-orcid":false,"given":"Babar","family":"Khan","sequence":"first","affiliation":[{"name":"Embedded Systems and Applications Group, Technische Universit\u00e4t Darmstadt, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5927-4426","authenticated-orcid":false,"given":"Carsten","family":"Heinz","sequence":"additional","affiliation":[{"name":"Embedded Systems and Applications Group, Technische Universit\u00e4t Darmstadt, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1164-3082","authenticated-orcid":false,"given":"Andreas","family":"Koch","sequence":"additional","affiliation":[{"name":"Embedded Systems and Applications Group, Technische Universit\u00e4t Darmstadt, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2024,3,13]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_3_1_2_2","DOI":"10.1145\/3386362"},{"key":"e_1_3_1_3_2","first-page":"51","volume-title":"Proceedings of the Ottawa Linux Symposium","author":"Axboe Jens","year":"2004","unstructured":"Jens Axboe. 2004. 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