{"updated":"2025-01-22T08:55:33.964923+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00047574","sets":["1164:4088:4169:4170"]},"path":["4170"],"owner":"1","recid":"47574","title":["WWWキャッシュサーバの性能評価とチューニング"],"pubdate":{"attribute_name":"公開日","attribute_value":"1997-11-21"},"_buckets":{"deposit":"a99dd8d4-6d21-4bc3-8d3d-de9809934e9a"},"_deposit":{"id":"47574","pid":{"type":"depid","value":"47574","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"WWWキャッシュサーバの性能評価とチューニング","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"WWWキャッシュサーバの性能評価とチューニング"},{"subitem_title":"WWW Cache Server Performance Analysis and Turning","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"1997-11-21","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"NTTソフトウェア研究所"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"NTT Software Laboratories","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/47574/files/IPSJ-DSM97008009.pdf"},"date":[{"dateType":"Available","dateValue":"1999-11-21"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DSM97008009.pdf","filesize":[{"value":"595.5 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"2ba1e488-d8a6-492d-b9bd-f9683572d485","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 1997 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鍋島, 公章"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Masaaki, Nabeshima","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12326962","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_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"爆発的なWWW　(orld　Wide　We)人気の高まりとともに，回線容量やサーバの処理能力不足が深刻になっている．これを解消するために，WWWにおけるキャッシュサーバが広く使われはじめている．報告者は，キャッシュサーバの効果的な運用方法を確立することを目的に実験運用を行っている．本稿では，その実験の中間報告として，キャッシュサーバの処理能力と，チューニング方法についての報告を行う．報告者の実験環境では，サーバの処理能力は毎秒9リクエスト程度（約720Kbp)であることが観測された．また，この実験に使われたサーバはSun　Sparc　Station　20?71という，現状では，旧機種に入るものであったが，システムの最大のボトルネックはDisk　I/O性能であった．そして，この部分のチューニングが有効であり，2割程度の性能向上を達成した．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"With explosion of WWW (World Wide Web) popularity, the lack of bandwidth and power of server is severe problem. To solve these problems, WWW cache server has begun to be used widely. We are operating a WWW cache serer to establish its effective operation. In this paper, we report an analysis of cache server performance and a result of tunings. In our testbed, the server processed around 9 requests per second (720 Kbps). The server was a Sun Sparc Station 20-71 that is a slow machine nowadays. However, we found the bottleneck of the system was disk I/O performance and disk I/O tuning is effective. This tuning improved the cache server performance until around 11 requests per second.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"54","bibliographic_titles":[{"bibliographic_title":"情報処理学会研究報告インターネットと運用技術（IOT）"}],"bibliographicPageStart":"49","bibliographicIssueDates":{"bibliographicIssueDate":"1997-11-21","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"111(1997-DSM-008)","bibliographicVolumeNumber":"1997"}]},"relation_version_is_last":true,"weko_creator_id":"1"},"created":"2025-01-18T23:13:01.265816+00:00","id":47574,"links":{}}