{"id":"https://openalex.org/W7202205906","doi":"https://doi.org/10.1145/3789240.3829197","title":"Capybara: Dynamic Load Balancing with Microsecond-Scale TCP Migration","display_name":"Capybara: Dynamic Load Balancing with Microsecond-Scale TCP Migration","publication_year":2026,"publication_date":"2026-08-11","ids":{"openalex":"https://openalex.org/W7202205906","doi":"https://doi.org/10.1145/3789240.3829197"},"language":null,"primary_location":{"id":"doi:10.1145/3789240.3829197","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3789240.3829197","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM SIGCOMM 2026 Conference","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1145/3789240.3829197","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101622015","display_name":"Inho Choi","orcid":"https://orcid.org/0009-0007-9835-4040"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Inho Choi","raw_affiliation_strings":["National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0009-0007-9835-4040","affiliations":[{"raw_affiliation_string":"National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5092574931","display_name":"Nimish Wadekar","orcid":"https://orcid.org/0009-0005-9804-9391"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Nimish Wadekar","raw_affiliation_strings":["ETH Z\u00fcrich, Z\u00fcrich, Switzerland"],"raw_orcid":"https://orcid.org/0009-0005-9804-9391","affiliations":[{"raw_affiliation_string":"ETH Z\u00fcrich, Z\u00fcrich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047489436","display_name":"Guangda Sun","orcid":"https://orcid.org/0009-0008-7988-2021"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Guangda Sun","raw_affiliation_strings":["National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0009-0008-7988-2021","affiliations":[{"raw_affiliation_string":"National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085688805","display_name":"Raj Joshi","orcid":"https://orcid.org/0000-0003-1146-9931"},"institutions":[{"id":"https://openalex.org/I1328219102","display_name":"Red Hat (United States)","ror":"https://ror.org/03ncs3316","country_code":"US","type":"company","lineage":["https://openalex.org/I1328219102"]},{"id":"https://openalex.org/I2801851002","display_name":"Harvard University Press","ror":"https://ror.org/006v7bf86","country_code":"US","type":"other","lineage":["https://openalex.org/I136199984","https://openalex.org/I2801851002"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Raj Joshi","raw_affiliation_strings":["Harvard University, Cambridge, USA","Red Hat, Cambridge, USA"],"raw_orcid":"https://orcid.org/0000-0003-1146-9931","affiliations":[{"raw_affiliation_string":"Harvard University, Cambridge, USA","institution_ids":["https://openalex.org/I2801851002"]},{"raw_affiliation_string":"Red Hat, Cambridge, USA","institution_ids":["https://openalex.org/I1328219102"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031595297","display_name":"Joshua Fried","orcid":"https://orcid.org/0000-0002-5761-3516"},"institutions":[{"id":"https://openalex.org/I79576946","display_name":"University of Pennsylvania","ror":"https://ror.org/00b30xv10","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]},{"id":"https://openalex.org/I922845939","display_name":"Philadelphia University","ror":"https://ror.org/03zzmyz63","country_code":"US","type":"education","lineage":["https://openalex.org/I922845939"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joshua Fried","raw_affiliation_strings":["University of Pennsylvania, Philadelphia, USA"],"raw_orcid":"https://orcid.org/0000-0002-5761-3516","affiliations":[{"raw_affiliation_string":"University of Pennsylvania, Philadelphia, USA","institution_ids":["https://openalex.org/I79576946","https://openalex.org/I922845939"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016559072","display_name":"Omar S. Navarro Leija","orcid":null},"institutions":[{"id":"https://openalex.org/I79576946","display_name":"University of Pennsylvania","ror":"https://ror.org/00b30xv10","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]},{"id":"https://openalex.org/I922845939","display_name":"Philadelphia University","ror":"https://ror.org/03zzmyz63","country_code":"US","type":"education","lineage":["https://openalex.org/I922845939"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Omar S. Navarro Leija","raw_affiliation_strings":["University of Pennsylvania, Philadelphia, USA"],"raw_orcid":"https://orcid.org/0009-0001-8715-3514","affiliations":[{"raw_affiliation_string":"University of Pennsylvania, Philadelphia, USA","institution_ids":["https://openalex.org/I79576946","https://openalex.org/I922845939"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026925980","display_name":"Dan R. K. Ports","orcid":"https://orcid.org/0000-0001-6093-5711"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dan R. K. Ports","raw_affiliation_strings":["Microsoft Research, Redmond, USA"],"raw_orcid":"https://orcid.org/0000-0001-6093-5711","affiliations":[{"raw_affiliation_string":"Microsoft Research, Redmond, USA","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5127622665","display_name":"Irene Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Irene Zhang","raw_affiliation_strings":["Microsoft Research, Redmond, USA"],"raw_orcid":"https://orcid.org/0009-0007-9033-3640","affiliations":[{"raw_affiliation_string":"Microsoft Research, Redmond, USA","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100329093","display_name":"Jialin Li","orcid":"https://orcid.org/0000-0003-3530-7662"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Jialin Li","raw_affiliation_strings":["National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0003-3530-7662","affiliations":[{"raw_affiliation_string":"National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":7,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1427","last_page":"1440"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":null,"topics":[],"keywords":[{"id":"https://openalex.org/keywords/load-balancing","display_name":"Load balancing (electrical power)","score":0.5013999938964844},{"id":"https://openalex.org/keywords/dynamic-load-testing","display_name":"Dynamic load testing","score":0.3483000099658966},{"id":"https://openalex.org/keywords/load-management","display_name":"Load management","score":0.3215000033378601},{"id":"https://openalex.org/keywords/network-congestion","display_name":"Network congestion","score":0.29190000891685486},{"id":"https://openalex.org/keywords/transmission-control-protocol","display_name":"Transmission Control Protocol","score":0.26840001344680786}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6189000010490417},{"id":"https://openalex.org/C138959212","wikidata":"https://www.wikidata.org/wiki/Q1806783","display_name":"Load balancing (electrical power)","level":3,"score":0.5013999938964844},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3619999885559082},{"id":"https://openalex.org/C12839126","wikidata":"https://www.wikidata.org/wiki/Q5318989","display_name":"Dynamic load testing","level":2,"score":0.3483000099658966},{"id":"https://openalex.org/C2779370713","wikidata":"https://www.wikidata.org/wiki/Q357554","display_name":"Load management","level":2,"score":0.3215000033378601},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.298799991607666},{"id":"https://openalex.org/C195563490","wikidata":"https://www.wikidata.org/wiki/Q180368","display_name":"Network congestion","level":3,"score":0.29190000891685486},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.27250000834465027},{"id":"https://openalex.org/C33588617","wikidata":"https://www.wikidata.org/wiki/Q8803","display_name":"Transmission Control Protocol","level":3,"score":0.26840001344680786},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.23260000348091125}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3789240.3829197","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3789240.3829197","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM SIGCOMM 2026 Conference","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3789240.3829197","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3789240.3829197","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM SIGCOMM 2026 Conference","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W1994926493","https://openalex.org/W2038572501","https://openalex.org/W2062832101","https://openalex.org/W2098395496","https://openalex.org/W2106352837","https://openalex.org/W2126022651","https://openalex.org/W2150942100","https://openalex.org/W2159279524","https://openalex.org/W2162405374","https://openalex.org/W2164740236","https://openalex.org/W2168075869","https://openalex.org/W2168595508","https://openalex.org/W2513730816","https://openalex.org/W2606027679","https://openalex.org/W2744693751","https://openalex.org/W2761338514","https://openalex.org/W2926556002","https://openalex.org/W2982176300","https://openalex.org/W3046744974","https://openalex.org/W3202572187","https://openalex.org/W4290940003","https://openalex.org/W4290991674","https://openalex.org/W4408177418"],"related_works":[],"abstract_inverted_index":{"Layer-4":[0],"load":[1,30,42,49,111],"balancers":[2],"are":[3],"a":[4,28,46,51,58],"popular":[5],"solution":[6],"to":[7,23,76,86,94,109],"high":[8],"tail":[9,97],"latencies":[10],"but":[11],"perform":[12],"poorly":[13],"under":[14],"unpredictable":[15],"skewed":[16],"workloads":[17],"because":[18],"they":[19],"statically":[20],"assign":[21],"connections":[22],"servers.":[24],"We":[25],"present":[26],"Capybara,":[27],"new":[29],"balancer":[31],"architecture":[32],"that":[33],"enables":[34],"dynamic":[35],"rebalancing":[36],"of":[37],"established":[38],"connections.":[39],"Capybara":[40,66,91],"divides":[41],"balancing":[43,112],"responsibility":[44],"into":[45],"fast":[47],"L4":[48],"balancer,":[50],"host-switch":[52],"co-designed":[53],"connection":[54,63,79],"migration":[55,80],"protocol,":[56],"and":[57,73,99],"transport":[59],"interface":[60],"for":[61,105],"application-level":[62],"state":[64],"migration.":[65],"leverages":[67],"two":[68],"trends":[69],"-":[70,75],"programmable":[71],"switches":[72],"kernel-bypass":[74],"efficiently":[77],"implement":[78],"without":[81],"disruption,":[82],"while":[83],"maintaining":[84],"transparency":[85],"clients.":[87],"Under":[88],"realistic":[89],"workloads,":[90],"achieves":[92],"up":[93],"149\u00d7":[95],"lower":[96],"latency":[98],"more":[100],"than":[101],"2\u00d7":[102],"higher":[103],"throughput":[104],"scale-out":[106],"services":[107],"compared":[108],"state-of-the-art":[110],"approaches.":[113]},"counts_by_year":[],"updated_date":"2026-08-13T07:04:57.449891","created_date":"2026-08-12T00:00:00"}
