{"updated":"2025-01-20T03:54:35.838480+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00182847","sets":["1164:1867:9088:9218"]},"path":["9218"],"owner":"11","recid":"182847","title":["FCMalloc: 完全準同型暗号の高速化に向たメモリアロケータ"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-07-19"},"_buckets":{"deposit":"96aa6dfb-7cc9-417f-b2c6-1085653e0b98"},"_deposit":{"id":"182847","pid":{"type":"depid","value":"182847","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"FCMalloc: 完全準同型暗号の高速化に向たメモリアロケータ","author_link":["399461","399459","399462","399460","399458"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"FCMalloc: 完全準同型暗号の高速化に向たメモリアロケータ"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"信頼性","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2017-07-19","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"}]},"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/182847/files/IPSJ-OS17141006.pdf","label":"IPSJ-OS17141006.pdf"},"date":[{"dateType":"Available","dateValue":"2019-07-19"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-OS17141006.pdf","filesize":[{"value":"4.0 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":"ed0486ad-fa8a-4009-8566-24c4c525b2fb","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2017 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"馬屋原, 昂"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"佐藤, 宏樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石巻, 優"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"今林, 広樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山名, 早人"}],"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":"マルチコアシステム上で多数のスレッドが同時実行される場合，メモリアロケーションがボトルネックになることがある．これは，複数のスレッドから同時にシステムコールが呼ばれることに起因する．TCMalloc，JEmalloc，SuperMalloc などの従来の汎用用途向けのメモリアロケータでは，各スレッドのローカルヒープメモリへロックフリーでアクセスすることで高速化を実現している．これに対して本稿では，完全準同型暗号計算を対象にした FCMalloc を提案する．完全準同型暗号計算ではメモリ使用量が既知の場合が多く，さらに，ある決まったパターンでメモリアロケーションが繰り返されるという特徴がある．こうした特徴を利用し，FCMalloc では pseudo free によってメモリマッピング情報を繰り返し利用することで，物理メモリレベルでメモリプールを用いる．さらに，ローカルヒープメモリ間の通信経路の構造を全結合とすることで，複数のスレッドによるアクセスのロック競合を減少させる．すなわち，システムコールの頻度を下げ，メモリ管理をできる限りユーザ領域で実現することにより高速化を実現する．完全準同型暗号上で構築した頻出パターンマイニングアルゴリズムである Apriori アルゴリズムを対象とした評価実験の結果，既存手法の中で最も高速である JEmalloc と比較して 2.4 倍の高速化を達成した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","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":"2017-07-19","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicVolumeNumber":"2017-OS-141"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-19T00:50:25.165398+00:00","id":182847,"links":{}}