{"updated":"2025-01-19T20:35:05.404909+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00203334","sets":["1164:1867:10145:10146"]},"path":["10146"],"owner":"44499","recid":"203334","title":["不揮発性メモリを使ったデータ永続化システムNV-HTMの評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-02-20"},"_buckets":{"deposit":"160650cb-27d2-4de4-9ed1-0162e11d58f1"},"_deposit":{"id":"203334","pid":{"type":"depid","value":"203334","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"不揮発性メモリを使ったデータ永続化システムNV-HTMの評価","author_link":["500891","500892","500890"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"不揮発性メモリを使ったデータ永続化システムNV-HTMの評価"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"不揮発性メモリ","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2020-02-20","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"高知工科大学"},{"subitem_text_value":"高知工科大学"},{"subitem_text_value":"高知工科大学"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/203334/files/IPSJ-OS20148002.pdf","label":"IPSJ-OS20148002.pdf"},"date":[{"dateType":"Available","dateValue":"2022-02-20"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-OS20148002.pdf","filesize":[{"value":"1.2 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"11"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"cee59c4d-62c8-483f-a4cb-5c5394ad85e5","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2020 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"飯干, 寛幸"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松本, 康太郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鵜川, 始陽"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10444176","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8795","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，電源が失われても内容が保持されるメモリとして不揮発性メモリ(NVM)が市場に登場した．NVM を使ったシステムでは，データがキャッシュから NVM に書き出されて初めて永続化される．そのため，いつ電源が失われても良いように，常に NVM 上のデータの整合性を保つための方法が研究されている．その中には，個々のデータ構造を NVM に対応させるアプローチと，汎用のデータ構造を永続化するためのシステムを開発するアプローチがある．本研究では，NVM を使ってデータ構造を永続化するためのシステムである NV-HTM の評価を行った．そのために，NV-HTM を使い永続化した B+-木と，B+-木を NVM に特化させた FPTree の性能を比較した．NV-HTM は性能評価用の DRAM を用いたエミュレータを使うソースコードしか存在しなかったため，実機で動作するように修正が必要だった．FPTree もアルゴリズムの記述から実装する必要があった．これらを実装して比較したところ，NV-HTM は FPTree に比べて遅く，スレッド数を増やしても 4 スレッドまでしかスケールしなかった．そこでさらに，NV-HTM の性能ボトルネックを詳細に調査した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"10","bibliographic_titles":[{"bibliographic_title":"研究報告システムソフトウェアとオペレーティング・システム（OS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2020-02-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"2020-OS-148"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:05:46.028966+00:00","id":203334,"links":{}}