{"abstract":[{"text":"The design and implementation of efficient concurrent data structures have\r\nseen significant attention. However, most of this work has focused on\r\nconcurrent data structures providing good \\emph{worst-case} guarantees. In real\r\nworkloads, objects are often accessed at different rates, since access\r\ndistributions may be non-uniform. Efficient distribution-adaptive data\r\nstructures are known in the sequential case, e.g. the splay-trees; however,\r\nthey often are hard to translate efficiently in the concurrent case.\r\n  In this paper, we investigate distribution-adaptive concurrent data\r\nstructures and propose a new design called the splay-list. At a high level, the\r\nsplay-list is similar to a standard skip-list, with the key distinction that\r\nthe height of each element adapts dynamically to its access rate: popular\r\nelements ``move up,'' whereas rarely-accessed elements decrease in height. We\r\nshow that the splay-list provides order-optimal amortized complexity bounds for\r\na subset of operations while being amenable to efficient concurrent\r\nimplementation. Experimental results show that the splay-list can leverage\r\ndistribution-adaptivity to improve on the performance of classic concurrent\r\ndesigns, and can outperform the only previously-known distribution-adaptive\r\ndesign in certain settings.","lang":"eng"}],"status":"public","intvolume":"       179","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)","short":"CC BY (3.0)","image":"/images/cc_by.png"},"date_updated":"2023-02-23T13:41:40Z","quality_controlled":"1","day":"03","acknowledgement":"Vitaly Aksenov: Government of Russian Federation (Grant 08-08).\r\nDan Alistarh: ERC Starting Grant 805223 ScaleML.","ec_funded":1,"license":"https://creativecommons.org/licenses/by/3.0/","project":[{"call_identifier":"H2020","grant_number":"805223","_id":"268A44D6-B435-11E9-9278-68D0E5697425","name":"Elastic Coordination for Scalable Machine Learning"}],"volume":179,"external_id":{"arxiv":["2008.01009"]},"has_accepted_license":"1","date_created":"2020-11-05T15:26:17Z","publication":"34th International Symposium on Distributed Computing","article_processing_charge":"No","date_published":"2020-08-03T00:00:00Z","year":"2020","ddc":["000"],"file":[{"file_id":"9237","access_level":"open_access","success":1,"creator":"dernst","checksum":"a626a9c47df52b6f6d97edd910dae4ba","file_size":740358,"date_created":"2021-03-11T12:33:35Z","file_name":"2020_LIPIcs_Aksenov.pdf","content_type":"application/pdf","date_updated":"2021-03-11T12:33:35Z","relation":"main_file"}],"author":[{"last_name":"Aksenov","full_name":"Aksenov, Vitaly","first_name":"Vitaly"},{"full_name":"Alistarh, Dan-Adrian","orcid":"0000-0003-3650-940X","first_name":"Dan-Adrian","last_name":"Alistarh","id":"4A899BFC-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Drozdova","first_name":"Alexandra","full_name":"Drozdova, Alexandra"},{"full_name":"Mohtashami, Amirkeivan","first_name":"Amirkeivan","last_name":"Mohtashami"}],"file_date_updated":"2021-03-11T12:33:35Z","language":[{"iso":"eng"}],"department":[{"_id":"DaAl"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"3:1-3:18","series_title":"LIPIcs","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","oa":1,"conference":{"start_date":"2020-10-12","location":"Freiburg, Germany","end_date":"2020-10-16","name":"DISC: Symposium on Distributed Computing"},"publication_status":"published","month":"08","title":"The splay-list: A distribution-adaptive concurrent skip-list","_id":"8725","doi":"10.4230/LIPIcs.DISC.2020.3","publication_identifier":{"isbn":["9783959771689"],"issn":["1868-8969"]},"citation":{"short":"V. Aksenov, D.-A. Alistarh, A. Drozdova, A. Mohtashami, in:, 34th International Symposium on Distributed Computing, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020, p. 3:1-3:18.","apa":"Aksenov, V., Alistarh, D.-A., Drozdova, A., &#38; Mohtashami, A. (2020). The splay-list: A distribution-adaptive concurrent skip-list. In <i>34th International Symposium on Distributed Computing</i> (Vol. 179, p. 3:1-3:18). Freiburg, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.DISC.2020.3\">https://doi.org/10.4230/LIPIcs.DISC.2020.3</a>","ista":"Aksenov V, Alistarh D-A, Drozdova A, Mohtashami A. 2020. The splay-list: A distribution-adaptive concurrent skip-list. 34th International Symposium on Distributed Computing. DISC: Symposium on Distributed ComputingLIPIcs vol. 179, 3:1-3:18.","ama":"Aksenov V, Alistarh D-A, Drozdova A, Mohtashami A. The splay-list: A distribution-adaptive concurrent skip-list. In: <i>34th International Symposium on Distributed Computing</i>. Vol 179. LIPIcs. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2020:3:1-3:18. doi:<a href=\"https://doi.org/10.4230/LIPIcs.DISC.2020.3\">10.4230/LIPIcs.DISC.2020.3</a>","chicago":"Aksenov, Vitaly, Dan-Adrian Alistarh, Alexandra Drozdova, and Amirkeivan Mohtashami. “The Splay-List: A Distribution-Adaptive Concurrent Skip-List.” In <i>34th International Symposium on Distributed Computing</i>, 179:3:1-3:18. LIPIcs. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020. <a href=\"https://doi.org/10.4230/LIPIcs.DISC.2020.3\">https://doi.org/10.4230/LIPIcs.DISC.2020.3</a>.","mla":"Aksenov, Vitaly, et al. “The Splay-List: A Distribution-Adaptive Concurrent Skip-List.” <i>34th International Symposium on Distributed Computing</i>, vol. 179, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020, p. 3:1-3:18, doi:<a href=\"https://doi.org/10.4230/LIPIcs.DISC.2020.3\">10.4230/LIPIcs.DISC.2020.3</a>.","ieee":"V. Aksenov, D.-A. Alistarh, A. Drozdova, and A. Mohtashami, “The splay-list: A distribution-adaptive concurrent skip-list,” in <i>34th International Symposium on Distributed Computing</i>, Freiburg, Germany, 2020, vol. 179, p. 3:1-3:18."},"type":"conference","oa_version":"Published Version"}