{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02002116","sets":["1164:1867:11897:1746755291135"]},"path":["1746755291135"],"owner":"80578","recid":"2002116","title":["専用ハードウェアエンジンによるカーネル内メモリ操作オフロード"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-05-14"},"_buckets":{"deposit":"1fd2f20d-d40e-4a1c-aa82-2942a10cc254"},"_deposit":{"id":"2002116","pid":{"type":"depid","value":"2002116","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"専用ハードウェアエンジンによるカーネル内メモリ操作オフロード","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"専用ハードウェアエンジンによるカーネル内メモリ操作オフロード","subitem_title_language":"ja"}]},"item_type_id":"4","publish_date":"2025-05-14","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学"},{"subitem_text_value":"東京大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"The University of Tokyo","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/2002116/files/IPSJ-OS25167005.pdf","label":"IPSJ-OS25167005.pdf"},"date":[{"dateType":"Available","dateValue":"2027-05-14"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-OS25167005.pdf","filesize":[{"value":"1.0 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":"858a312c-9ae4-4902-891a-dc2370651115","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2025 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"飯田,圭祐"}]},{"creatorNames":[{"creatorName":"品川,高廣"}]}]},"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":"メモリのゼロ初期化やコピーなどの基本的なメモリ操作は，カーネル内で頻繁に実行されるため，システム性能に大きな影響を与える重要な要素である．しかし，これらの操作をCPUで実行する場合，キャッシュを消費してアプリケーション性能に影響を与えるほか，CPUの演算資源を単純な処理に割くことになり，資源利用の面で非効率である．従来の研究でも，DMAを用いたメモリコピーのオフロード手法が提案されてきたが，これらはカーネル内のメモリ操作には適用されていないほか，汎用性や並列性にも課題が残る．本研究では，カーネル内のメモリ操作を専用ハードウェアにオフロードし，非同期に処理する手法を提案する．提案手法では，メモリ上のディスクリプタリングを介してカーネルとメモリ操作エンジンが非同期に通信し，柔軟かつ拡張性の高いメモリ操作を実現する．また，メモリ操作エンジンをPCIe接続のデバイスとして実現することで，CPUとメモリバスを分離して並列実行を可能とする．我々は，提案するメモリ操作エンジンをFPGA上に試作し，Linuxページアロケータを改修して非同期ゼロ初期化機構を実装した．マイクロベンチマークによる評価の結果，メモリ確保および解放処理の高速化を確認した．また，本手法はゼロ初期化やコピー以外のさまざまなメモリ操作への拡張可能性を有することを示す．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","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":"2025-05-14","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"5","bibliographicVolumeNumber":"2025-OS-167"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"id":2002116,"updated":"2025-05-09T02:04:45.589128+00:00","links":{},"created":"2025-05-09T02:04:41.497481+00:00"}