{"id":"https://openalex.org/W3010663313","doi":"https://doi.org/10.1145/3373376.3378515","title":"FlatStore: An Efficient Log-Structured Key-Value Storage Engine for Persistent Memory","display_name":"FlatStore: An Efficient Log-Structured Key-Value Storage Engine for Persistent Memory","publication_year":2020,"publication_date":"2020-03-09","ids":{"openalex":"https://openalex.org/W3010663313","doi":"https://doi.org/10.1145/3373376.3378515","mag":"3010663313"},"language":"en","primary_location":{"id":"doi:10.1145/3373376.3378515","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3373376.3378515","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Twenty-Fifth International Conference on Architectural Support for Programming Languages and Operating Systems","raw_type":"proceedings-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/A5028549167","display_name":"Youmin Chen","orcid":"https://orcid.org/0000-0003-4171-4299"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Youmin Chen","raw_affiliation_strings":["Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052095173","display_name":"Youyou Lu","orcid":"https://orcid.org/0000-0002-6214-5390"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Youyou Lu","raw_affiliation_strings":["Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101858187","display_name":"Fan Yang","orcid":"https://orcid.org/0000-0002-4113-764X"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fan Yang","raw_affiliation_strings":["Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100434783","display_name":"Qing Wang","orcid":"https://orcid.org/0000-0001-6540-1858"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qing Wang","raw_affiliation_strings":["Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030110566","display_name":"Yang Wang","orcid":"https://orcid.org/0000-0001-7322-4062"},"institutions":[{"id":"https://openalex.org/I52357470","display_name":"The Ohio State University","ror":"https://ror.org/00rs6vg23","country_code":"US","type":"education","lineage":["https://openalex.org/I52357470"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yang Wang","raw_affiliation_strings":["The Ohio State University, Columbus, OH, USA"],"affiliations":[{"raw_affiliation_string":"The Ohio State University, Columbus, OH, USA","institution_ids":["https://openalex.org/I52357470"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101740783","display_name":"Jiwu Shu","orcid":"https://orcid.org/0000-0002-7362-2789"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiwu Shu","raw_affiliation_strings":["Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University &amp; Beijing National Research Center for Information Science and Technology, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5028549167"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":null,"apc_paid":null,"fwci":17.727,"has_fulltext":false,"cited_by_count":159,"citation_normalized_percentile":{"value":0.99423228,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"1077","last_page":"1091"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9998999834060669,"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":0.9998999834060669,"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/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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/T10101","display_name":"Cloud Computing and Resource Management","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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":0.7955197095870972},{"id":"https://openalex.org/keywords/search-engine-indexing","display_name":"Search engine indexing","score":0.7247142791748047},{"id":"https://openalex.org/keywords/associative-array","display_name":"Associative array","score":0.6825414896011353},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.6236562728881836},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.6071045994758606},{"id":"https://openalex.org/keywords/hash-function","display_name":"Hash function","score":0.597970187664032},{"id":"https://openalex.org/keywords/granularity","display_name":"Granularity","score":0.5767983198165894},{"id":"https://openalex.org/keywords/hash-table","display_name":"Hash table","score":0.5449248552322388},{"id":"https://openalex.org/keywords/persistent-data-structure","display_name":"Persistent data structure","score":0.4560627043247223},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.4466469883918762},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.42451146245002747},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3819703459739685},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.3661004900932312},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.20371079444885254}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7955197095870972},{"id":"https://openalex.org/C75165309","wikidata":"https://www.wikidata.org/wiki/Q2258979","display_name":"Search engine indexing","level":2,"score":0.7247142791748047},{"id":"https://openalex.org/C168781493","wikidata":"https://www.wikidata.org/wiki/Q80585","display_name":"Associative array","level":2,"score":0.6825414896011353},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.6236562728881836},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.6071045994758606},{"id":"https://openalex.org/C99138194","wikidata":"https://www.wikidata.org/wiki/Q183427","display_name":"Hash function","level":2,"score":0.597970187664032},{"id":"https://openalex.org/C177774035","wikidata":"https://www.wikidata.org/wiki/Q1246948","display_name":"Granularity","level":2,"score":0.5767983198165894},{"id":"https://openalex.org/C67388219","wikidata":"https://www.wikidata.org/wiki/Q207440","display_name":"Hash table","level":3,"score":0.5449248552322388},{"id":"https://openalex.org/C888380","wikidata":"https://www.wikidata.org/wiki/Q2427787","display_name":"Persistent data structure","level":2,"score":0.4560627043247223},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.4466469883918762},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.42451146245002747},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3819703459739685},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.3661004900932312},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.20371079444885254},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3373376.3378515","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3373376.3378515","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Twenty-Fifth International Conference on Architectural Support for Programming Languages and Operating Systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":60,"referenced_works":["https://openalex.org/W95608104","https://openalex.org/W100679602","https://openalex.org/W1172733195","https://openalex.org/W1437323374","https://openalex.org/W1508018340","https://openalex.org/W1532546444","https://openalex.org/W1567210335","https://openalex.org/W1599961915","https://openalex.org/W1677118421","https://openalex.org/W1785664926","https://openalex.org/W1981420413","https://openalex.org/W1985229168","https://openalex.org/W1992755462","https://openalex.org/W2048588974","https://openalex.org/W2068739275","https://openalex.org/W2074881976","https://openalex.org/W2083842231","https://openalex.org/W2093584083","https://openalex.org/W2102449048","https://openalex.org/W2108183412","https://openalex.org/W2119738171","https://openalex.org/W2125901106","https://openalex.org/W2128274900","https://openalex.org/W2129554014","https://openalex.org/W2135393827","https://openalex.org/W2138996412","https://openalex.org/W2140101134","https://openalex.org/W2153704625","https://openalex.org/W2159479644","https://openalex.org/W2165663045","https://openalex.org/W2173213060","https://openalex.org/W2189465200","https://openalex.org/W2282225439","https://openalex.org/W2340222647","https://openalex.org/W2415017588","https://openalex.org/W2416075414","https://openalex.org/W2433709474","https://openalex.org/W2538785949","https://openalex.org/W2566979091","https://openalex.org/W2612728990","https://openalex.org/W2734941459","https://openalex.org/W2740453188","https://openalex.org/W2741420129","https://openalex.org/W2758102451","https://openalex.org/W2761070740","https://openalex.org/W2786688469","https://openalex.org/W2793823461","https://openalex.org/W2796347822","https://openalex.org/W2806709843","https://openalex.org/W2885999059","https://openalex.org/W2892375026","https://openalex.org/W2898662556","https://openalex.org/W2899060836","https://openalex.org/W2899160556","https://openalex.org/W2916082303","https://openalex.org/W2921153466","https://openalex.org/W2930325348","https://openalex.org/W3012366137","https://openalex.org/W4235007850","https://openalex.org/W6687322159"],"related_works":["https://openalex.org/W2144265691","https://openalex.org/W4312295932","https://openalex.org/W1605991620","https://openalex.org/W113683524","https://openalex.org/W4385261619","https://openalex.org/W93624718","https://openalex.org/W3157121424","https://openalex.org/W1995542345","https://openalex.org/W4293792383","https://openalex.org/W4385385291"],"abstract_inverted_index":{"Emerging":[0],"hardware":[1],"like":[2],"persistent":[3,62],"memory":[4],"(PM)":[5],"and":[6,68,112,127,137],"high-speed":[7],"NICs":[8],"are":[9],"promising":[10],"to":[11,86,98,145],"build":[12],"efficient":[13,44,66],"key-value":[14,25,46],"stores.":[15],"However,":[16],"we":[17],"observe":[18],"that":[19,141],"the":[20,30,36,54,88,92,119],"small-sized":[21],"access":[22],"pattern":[23],"in":[24,33,91],"stores":[26],"doesn't":[27],"match":[28],"with":[29,118,148],"persistence":[31],"granularity":[32],"PMs,":[34],"leaving":[35],"PM":[37],"bandwidth":[38],"underutilized.":[39],"This":[40],"paper":[41],"proposes":[42],"an":[43],"PM-based":[45],"storage":[47,67],"engine":[48],"named":[49],"FlatStore.":[50],"Specifically,":[51],"it":[52],"decouples":[53],"role":[55],"of":[56,122],"a":[57,61,69,107,124,149],"KV":[58],"store":[59],"into":[60],"log":[63,84,100],"structure":[64],"for":[65,72],"volatile":[70,120],"index":[71,121],"fast":[73],"indexing.":[74],"Upon":[75],"it,":[76],"FlatStore":[77,117,131,142],"further":[78],"incorporates":[79],"two":[80],"techniques:":[81],"1)":[82],"compacted":[83],"format":[85],"maximize":[87],"batching":[89,97],"opportunity":[90],"log;":[93],"2)":[94],"pipelined":[95],"horizontal":[96],"steal":[99],"entries":[101],"from":[102],"other":[103],"cores":[104],"when":[105],"creating":[106],"batch,":[108],"thus":[109],"delivering":[110],"low-latency":[111],"high-throughput":[113],"performance.":[114],"We":[115,129],"implement":[116],"both":[123],"hash":[125],"table":[126],"Masstree.":[128],"deploy":[130],"on":[132],"Optane":[133],"DC":[134],"Persistent":[135],"Memory,":[136],"our":[138],"experiments":[139],"show":[140],"achieves":[143],"up":[144],"35":[146],"Mops/s":[147],"single":[150],"server":[151],"node,":[152],"2.5":[153],"-":[154],"6.3":[155],"times":[156],"faster":[157],"than":[158],"existing":[159],"systems.":[160]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":27},{"year":2024,"cited_by_count":20},{"year":2023,"cited_by_count":39},{"year":2022,"cited_by_count":32},{"year":2021,"cited_by_count":30},{"year":2020,"cited_by_count":9}],"updated_date":"2026-03-12T08:34:05.389933","created_date":"2025-10-10T00:00:00"}
