{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00235620","sets":["6504:11678:11698"]},"path":["11698"],"owner":"44499","recid":"235620","title":["ストレージシステムにおける性能とSSD寿命を考慮したガベージコレクションポリシーの使い分け"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-03-01"},"_buckets":{"deposit":"dee3e848-4a1e-4540-93f1-1045bc048b6c"},"_deposit":{"id":"235620","pid":{"type":"depid","value":"235620","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"ストレージシステムにおける性能とSSD寿命を考慮したガベージコレクションポリシーの使い分け","author_link":["643880","643878","643879"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ストレージシステムにおける性能とSSD寿命を考慮したガベージコレクションポリシーの使い分け"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"コンピュータシステム","subitem_subject_scheme":"Other"}]},"item_type_id":"22","publish_date":"2024-03-01","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_22_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"日立"},{"subitem_text_value":"日立"},{"subitem_text_value":"日立"}]},"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/235620/files/IPSJ-Z86-5A-05.pdf","label":"IPSJ-Z86-5A-05.pdf"},"date":[{"dateType":"Available","dateValue":"2024-07-03"}],"format":"application/pdf","filename":"IPSJ-Z86-5A-05.pdf","filesize":[{"value":"513.0 kB"}],"mimetype":"application/pdf","accessrole":"open_date","version_id":"2ce58878-27f4-4a41-9902-a65bb01d03a0","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 by the Information Processing Society of Japan"}]},"item_22_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"別納, 健市"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"下薗, 紀夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉原, 朋宏"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_5794","resourcetype":"conference paper"}]},"item_22_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00349328","subitem_source_identifier_type":"NCID"}]},"item_22_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"ストレージシステムのビットコスト低減のため，データを透過的に圧縮・追記するデータ削減機能が普及している．追記に伴って生じるガベージの回収（GC）が必要だが，GCはアクセス性能とドライブ書き込み量（SSDの寿命）に影響し，これらの優先度はユースケースに依存する．本稿では，ガベージを極力回収する性能優先ポリシーと，極力蓄積する寿命優先ポリシーをユースケース毎に使い分ける方式を提案する．プロトタイプ評価では，両ポリシー間でランダム書き込み性能に1.7倍，ドライブ書き込み量に最大10倍の差があり，両ポリシーの使い分けや中間的ポリシーへのチューニングによって幅広いユースケースへ対応できる見込みを得た．","subitem_description_type":"Other"}]},"item_22_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"18","bibliographic_titles":[{"bibliographic_title":"第86回全国大会講演論文集"}],"bibliographicPageStart":"17","bibliographicIssueDates":{"bibliographicIssueDate":"2024-03-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2024"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":235620,"updated":"2025-01-19T09:35:17.525595+00:00","links":{},"created":"2025-01-19T01:37:11.857022+00:00"}