[{"data":1,"prerenderedAt":154},["ShallowReactive",2],{"project-49186732":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":29,"sentiment":30,"stance_mix":31,"scored_comments":35,"aspects":36,"strip":40,"post_text":42,"what":43,"said":66,"maker_in_thread":91,"shape":100,"grid":103,"attempts":116,"same_week":117,"maker_shows":15,"maker_hidden":147,"reader_version":148,"card":149},"49186732","ClickBench Playground","a playground for 110 database systems","title","Show HN: ClickBench Playground – a playground for 110 database systems","https:\u002F\u002Fbenchmark.clickhouse.com\u002Fplayground\u002F","benchmark.clickhouse.com","zX41ZdbW",1785953855,2026,22,6,1910,4366,44,"shown","data","database benchmarking playground","web_app",[24,25,26,27,28],"database benchmark","clickbench","sql performance","database comparison","firecracker microvm","quiet",null,{"positive":32,"neutral":33,"mixed":34,"critical":34},3,1,0,4,{"idea":37,"docs":38,"performance":39},{"positive":33,"critical":34},{"positive":33,"critical":34},{"positive":34,"critical":34},[41,41,34,32,34,41],5,"I created it mostly for testing and exploration, but the main reason was that it became possible after previous work.",{"problem":44,"audience":30,"pricing":30,"motivation":50,"time_to_build":30,"stack":54,"openness":63,"stage":64,"team_size":65},{"value":45,"source":46,"evidence":47},"Lets people test and explore query behaviour and performance across many database systems","maker",[48],{"id":49},"post",{"value":51,"source":46,"evidence":52},"Testing and exploration, made possible by previous ClickBench work",[53],{"id":49},[55],{"value":56,"source":57,"evidence":58},"Firecracker microVMs","commenter",[59],{"id":60,"by":61,"text":62},"49188483","jauntywundrkind","Incredible! This is amazing! README says it downloads onto a host the dataset, (builds if needed then) runs a snapshotted firecracker microvms that exposes a small \u002Fquery…","open_source","launched","company",{"praise":67,"objections":80,"requests":81,"questions":82,"alternatives":90},[68],{"value":69,"source":57,"evidence":70},"Impressive and useful tool for exploring many databases",[71,72,76],{"id":60,"by":61,"text":62},{"id":73,"by":74,"text":75},"49213642","valentynkit","Incredible tool! Really liked playing around with it.",{"id":77,"by":78,"text":79},"49186917","eterm","That's actually neat, I can finally do a full sweep of something I found after the recent post about Lobsters migration, I came across a query that evaluates differently in…",[],[],[83],{"value":84,"source":57,"evidence":85},"Is the playground emulated or running on real hardware",[86],{"id":87,"by":88,"text":89},"49190092","cvince","Really cool idea. Skimmed the writeup, but none of this is emulated???",[],{"comments":92,"answered":33,"key":93},2,[94,97],{"id":95,"text":96},"49188770","Thanks! There is a write-up: https:\u002F\u002Fclickhouse.com\u002Fblog\u002Fclickbench-playground A lot of interesting things around hosting it.",{"id":98,"text":99},"49191048","All databases are hosted in VMs. Most of them only support amd64, so the host machine is also amd64 - this is the only limitation. It uses hardware virtualization, so nothing is…",{"commenters":41,"max_depth":92,"maker_replies":92,"first_comment_mins":101,"lifespan_hours":102},11,47,[104,106,108,110,112,114],[77,34,41,105,78,34],"project\u002Fpositive\u002Fidea",[60,33,41,107,61,34],"project\u002Fpositive\u002Fdocs",[95,33,34,109,11,33],"maker\u002Fneutral\u002Fdocs",[87,92,32,111,88,34],"project\u002Fneutral\u002Fperformance",[98,92,34,113,11,33],"maker\u002Fneutral\u002Fperformance",[73,32,41,115,74,34],"project\u002Fpositive\u002Fnone",[],[118,123,128,132,137,142],{"id":119,"name":120,"points":121,"category":122},"49124218","Elevators",1680,"learning_science",{"id":124,"name":125,"points":126,"category":127},"49170165","Inclusive Color Space",627,"creative",{"id":129,"name":130,"points":131,"category":127},"49149966","Isopolis",350,{"id":133,"name":134,"points":135,"category":136},"49140396","Cycloidal Gearbox",338,"hardware",{"id":138,"name":139,"points":140,"category":141},"49158333","Swiftlet",312,"ai",{"id":143,"name":144,"points":145,"category":146},"49145937","Kakehashi",255,"infrastructure",false,"v2",{"id":150,"name":5,"line":6,"ai":147,"cat":20,"year":13,"points":14,"comments":15,"rec":29,"s":30,"top":18,"kw":151,"maker":11,"domain":10,"tier":19,"attempts":34,"strip":152,"url":9,"mix":153,"praise":69,"objection":-1,"sub":21},49186732,[24,25,26,27,28],"550305",[32,33,34,34],1794036707207]