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Archit. Code Optim."],"published-print":{"date-parts":[[2024,3,31]]},"abstract":"<jats:p>As solid-state drives (SSDs) with sufficient computing power have recently become the dominant devices in modern computer systems, in-storage processing (ISP), which processes data within the storage without transferring it to the host memory, is being utilized in various emerging applications. The main challenge of ISP is to deliver storage data to the offloaded workload. This is difficult because of the information gap between the host and storage, the data consistency problem between the host and offloaded workloads, and SSD-specific hardware limitations. Moreover, because the offloaded workloads use internal SSD resources, host I\/O performance might be degraded due to resource conflicts. Although several ISP frameworks have been proposed, existing ISP approaches that do not deeply consider the internal SSD behavior are often insufficient to support efficient ISP workload offloading with high programmability.<\/jats:p>\n          <jats:p>In this article, we propose an ISP agent, a lightweight ISP workload offloading framework for SSD devices. The ISP agent provides I\/O and memory interfaces that allow users to run existing function codes on SSDs without major code modifications, and separates the resources for the offloaded workloads from the existing SSD firmware to minimize interference with host I\/O processing. The ISP agent also provides further optimization opportunities for the offloaded workload by considering SSD architectures. We have implemented the ISP agent on the OpenSSD Cosmos+ board and evaluated its performance using synthetic benchmarks and a real-world ISP-assisted database checkpointing application. The experimental results demonstrate that the ISP agent enhances host application performance while increasing ISP programmability, and that the optimization opportunities provided by the ISP agent can significantly improve ISP-side performance without compromising host I\/O processing.<\/jats:p>","DOI":"10.1145\/3632951","type":"journal-article","created":{"date-parts":[[2023,11,14]],"date-time":"2023-11-14T11:30:36Z","timestamp":1699961436000},"page":"1-24","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["ISP Agent: A Generalized In-storage-processing Workload Offloading Framework by Providing Multiple Optimization Opportunities"],"prefix":"10.1145","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0017-592X","authenticated-orcid":false,"given":"Seokwon","family":"Kang","sequence":"first","affiliation":[{"name":"Hanyang University, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0182-842X","authenticated-orcid":false,"given":"Jongbin","family":"Kim","sequence":"additional","affiliation":[{"name":"Hanyang University, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8186-573X","authenticated-orcid":false,"given":"Gyeongyong","family":"Lee","sequence":"additional","affiliation":[{"name":"Hanyang University, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-2005-9204","authenticated-orcid":false,"given":"Jeongmyung","family":"Lee","sequence":"additional","affiliation":[{"name":"Hanyang University, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4855-5609","authenticated-orcid":false,"given":"Jiwon","family":"Seo","sequence":"additional","affiliation":[{"name":"Hanyang University, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5376-7200","authenticated-orcid":false,"given":"Hyungsoo","family":"Jung","sequence":"additional","affiliation":[{"name":"Hanyang University, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1759-4242","authenticated-orcid":false,"given":"Yong Ho","family":"Song","sequence":"additional","affiliation":[{"name":"Samsung Electronics, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3725-0380","authenticated-orcid":false,"given":"Yongjun","family":"Park","sequence":"additional","affiliation":[{"name":"Yonsei University, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2024,1,19]]},"reference":[{"key":"e_1_3_1_2_2","volume-title":"Proceedings of the 11th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage\u201919)","author":"Adams Ian F.","year":"2019","unstructured":"Ian F. 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