{"id":"https://openalex.org/W2111262474","doi":"https://doi.org/10.1145/1837915.1837922","title":"DFS","display_name":"DFS","publication_year":2010,"publication_date":"2010-09-01","ids":{"openalex":"https://openalex.org/W2111262474","doi":"https://doi.org/10.1145/1837915.1837922","mag":"2111262474"},"language":"en","primary_location":{"id":"doi:10.1145/1837915.1837922","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1837915.1837922","pdf_url":null,"source":{"id":"https://openalex.org/S158124317","display_name":"ACM Transactions on Storage","issn_l":"1553-3077","issn":["1553-3077","1553-3093"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Storage","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5051555159","display_name":"William Josephson","orcid":null},"institutions":[{"id":"https://openalex.org/I20089843","display_name":"Princeton University","ror":"https://ror.org/00hx57361","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"William K. Josephson","raw_affiliation_strings":["Princeton University","Princeton University#TAB#"],"affiliations":[{"raw_affiliation_string":"Princeton University","institution_ids":["https://openalex.org/I20089843"]},{"raw_affiliation_string":"Princeton University#TAB#","institution_ids":["https://openalex.org/I20089843"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013607592","display_name":"Lars Ailo Bongo","orcid":"https://orcid.org/0000-0002-7544-2482"},"institutions":[{"id":"https://openalex.org/I20089843","display_name":"Princeton University","ror":"https://ror.org/00hx57361","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lars A. Bongo","raw_affiliation_strings":["Princeton University","Princeton University#TAB#"],"affiliations":[{"raw_affiliation_string":"Princeton University","institution_ids":["https://openalex.org/I20089843"]},{"raw_affiliation_string":"Princeton University#TAB#","institution_ids":["https://openalex.org/I20089843"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101661978","display_name":"Kai Li","orcid":"https://orcid.org/0000-0003-4023-8278"},"institutions":[{"id":"https://openalex.org/I20089843","display_name":"Princeton University","ror":"https://ror.org/00hx57361","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kai Li","raw_affiliation_strings":["Princeton University","Princeton University#TAB#"],"affiliations":[{"raw_affiliation_string":"Princeton University","institution_ids":["https://openalex.org/I20089843"]},{"raw_affiliation_string":"Princeton University#TAB#","institution_ids":["https://openalex.org/I20089843"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5032160199","display_name":"David Flynn","orcid":"https://orcid.org/0000-0002-1024-3618"},"institutions":[{"id":"https://openalex.org/I4210125919","display_name":"Fusion (United States)","ror":"https://ror.org/02vtgg877","country_code":"US","type":"company","lineage":["https://openalex.org/I4210125919"]},{"id":"https://openalex.org/I4210149442","display_name":"Fusion Academy","ror":"https://ror.org/05rwjyj14","country_code":"US","type":"education","lineage":["https://openalex.org/I4210149442"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David Flynn","raw_affiliation_strings":["FusionIO","FusionIO#TAB#"],"affiliations":[{"raw_affiliation_string":"FusionIO","institution_ids":["https://openalex.org/I4210149442","https://openalex.org/I4210125919"]},{"raw_affiliation_string":"FusionIO#TAB#","institution_ids":["https://openalex.org/I4210149442","https://openalex.org/I4210125919"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5051555159"],"corresponding_institution_ids":["https://openalex.org/I20089843"],"apc_list":null,"apc_paid":null,"fwci":21.571,"has_fulltext":false,"cited_by_count":181,"citation_normalized_percentile":{"value":0.99633562,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":100},"biblio":{"volume":"6","issue":"3","first_page":"1","last_page":"25"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10742","display_name":"Peer-to-Peer Network Technologies","score":0.9854000210762024,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8489491939544678},{"id":"https://openalex.org/keywords/distributed-file-system","display_name":"Distributed File System","score":0.8183245658874512},{"id":"https://openalex.org/keywords/flash-file-system","display_name":"Flash file system","score":0.7510582208633423},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.6784707307815552},{"id":"https://openalex.org/keywords/file-system","display_name":"File system","score":0.6043788194656372},{"id":"https://openalex.org/keywords/flash-memory","display_name":"Flash memory","score":0.4862476587295532},{"id":"https://openalex.org/keywords/flash","display_name":"Flash (photography)","score":0.4459647238254547},{"id":"https://openalex.org/keywords/virtual-file-system","display_name":"Virtual file system","score":0.435161828994751},{"id":"https://openalex.org/keywords/layer","display_name":"Layer (electronics)","score":0.42032817006111145},{"id":"https://openalex.org/keywords/abstraction","display_name":"Abstraction","score":0.41597092151641846},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.36424165964126587},{"id":"https://openalex.org/keywords/self-certifying-file-system","display_name":"Self-certifying File System","score":0.11266708374023438},{"id":"https://openalex.org/keywords/computer-memory","display_name":"Computer memory","score":0.08516648411750793},{"id":"https://openalex.org/keywords/ssh-file-transfer-protocol","display_name":"SSH File Transfer Protocol","score":0.07079455256462097}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8489491939544678},{"id":"https://openalex.org/C152043487","wikidata":"https://www.wikidata.org/wiki/Q1229600","display_name":"Distributed File System","level":2,"score":0.8183245658874512},{"id":"https://openalex.org/C27670709","wikidata":"https://www.wikidata.org/wiki/Q5457555","display_name":"Flash file system","level":4,"score":0.7510582208633423},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.6784707307815552},{"id":"https://openalex.org/C2780940931","wikidata":"https://www.wikidata.org/wiki/Q174989","display_name":"File system","level":2,"score":0.6043788194656372},{"id":"https://openalex.org/C2776531357","wikidata":"https://www.wikidata.org/wiki/Q174077","display_name":"Flash memory","level":2,"score":0.4862476587295532},{"id":"https://openalex.org/C2777526259","wikidata":"https://www.wikidata.org/wiki/Q221836","display_name":"Flash (photography)","level":2,"score":0.4459647238254547},{"id":"https://openalex.org/C58861120","wikidata":"https://www.wikidata.org/wiki/Q1330734","display_name":"Virtual file system","level":5,"score":0.435161828994751},{"id":"https://openalex.org/C2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","level":2,"score":0.42032817006111145},{"id":"https://openalex.org/C124304363","wikidata":"https://www.wikidata.org/wiki/Q673661","display_name":"Abstraction","level":2,"score":0.41597092151641846},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.36424165964126587},{"id":"https://openalex.org/C82820731","wikidata":"https://www.wikidata.org/wiki/Q2640620","display_name":"Self-certifying File System","level":3,"score":0.11266708374023438},{"id":"https://openalex.org/C92855701","wikidata":"https://www.wikidata.org/wiki/Q5830907","display_name":"Computer memory","level":3,"score":0.08516648411750793},{"id":"https://openalex.org/C88520388","wikidata":"https://www.wikidata.org/wiki/Q1126823","display_name":"SSH File Transfer Protocol","level":4,"score":0.07079455256462097},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C98986596","wikidata":"https://www.wikidata.org/wiki/Q1143031","display_name":"Semiconductor memory","level":2,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1837915.1837922","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1837915.1837922","pdf_url":null,"source":{"id":"https://openalex.org/S158124317","display_name":"ACM Transactions on Storage","issn_l":"1553-3077","issn":["1553-3077","1553-3093"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Storage","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.5099999904632568}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W32664452","https://openalex.org/W35641434","https://openalex.org/W61554827","https://openalex.org/W1486947867","https://openalex.org/W1513366578","https://openalex.org/W1525822014","https://openalex.org/W1995625544","https://openalex.org/W2006803879","https://openalex.org/W2035712985","https://openalex.org/W2038619757","https://openalex.org/W2085463701","https://openalex.org/W2096863518","https://openalex.org/W2100100130","https://openalex.org/W2103877554","https://openalex.org/W2108183412","https://openalex.org/W2114167330","https://openalex.org/W2114828666","https://openalex.org/W2150958198","https://openalex.org/W2151745115","https://openalex.org/W2165068957","https://openalex.org/W2171796885","https://openalex.org/W2466758731","https://openalex.org/W2914934190","https://openalex.org/W4251787433","https://openalex.org/W4255327858"],"related_works":["https://openalex.org/W2381551617","https://openalex.org/W2133208915","https://openalex.org/W2034327359","https://openalex.org/W2367186230","https://openalex.org/W2166132536","https://openalex.org/W2583566947","https://openalex.org/W2098632277","https://openalex.org/W1920242583","https://openalex.org/W4245692688","https://openalex.org/W1965421486"],"abstract_inverted_index":{"We":[0],"present":[1],"the":[2,66,121,140],"design,":[3],"implementation,":[4],"and":[5,75,84,114,157],"evaluation":[6],"of":[7,17,21,25],"Direct":[8],"File":[9],"System":[10],"(DFS)":[11],"for":[12,29,111,117],"virtualized":[13,122],"flash":[14,32,60,68,123],"storage.":[15],"Instead":[16],"using":[18],"traditional":[19,90],"layers":[20,24],"abstraction,":[22],"our":[23],"abstraction":[26],"are":[27],"designed":[28],"directly":[30,47],"accessing":[31],"memory":[33],"devices.":[34],"DFS":[35,81,102,133,150,167],"has":[36],"two":[37],"main":[38],"novel":[39],"features.":[40],"First,":[41],"it":[42,64],"lays":[43],"out":[44],"its":[45],"files":[46],"in":[48],"a":[49,79,89],"very":[50],"large":[51],"virtual":[52,59,67],"storage":[53,61,69,124],"address":[54],"space":[55],"provided":[56],"by":[57,144,159,170],"FusionIO's":[58,127],"layer.":[62],"Second,":[63],"leverages":[65],"layer":[70,125],"to":[71,172],"perform":[72],"block":[73],"allocations":[74],"atomic":[76],"updates.":[77],"As":[78],"result,":[80],"performs":[82],"better":[83,136,154],"is":[85,134,151],"much":[86],"simpler":[87],"than":[88,137,155],"Unix":[91],"file":[92],"system":[93],"with":[94,120],"similar":[95],"functionalities.":[96],"Our":[97,162],"microbenchmark":[98],"results":[99],"show":[100,165],"that":[101,166],"can":[103],"deliver":[104],"94,000":[105],"I/O":[106],"operations":[107],"per":[108],"second":[109],"(IOPS)":[110],"direct":[112,118,130],"reads":[113],"71,000":[115],"IOPS":[116],"writes":[119],"on":[126,139],"ioDrive.":[128],"For":[129,146],"access":[131,148],"performance,":[132,149],"consistently":[135,153],"ext3":[138,169],"same":[141],"platform,":[142],"sometimes":[143,158],"20%.":[145],"buffered":[147],"also":[152],"ext3,":[156],"over":[160],"149%.":[161],"application":[163],"benchmarks":[164],"outperforms":[168],"7%":[171],"250%":[173],"while":[174],"requiring":[175],"less":[176],"CPU":[177],"power.":[178]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":12},{"year":2017,"cited_by_count":17},{"year":2016,"cited_by_count":18},{"year":2015,"cited_by_count":22},{"year":2014,"cited_by_count":26},{"year":2013,"cited_by_count":26},{"year":2012,"cited_by_count":8}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2016-06-24T00:00:00"}