https://forcia.connpass.com/event/187287/ に向けた発表資料です。
ISUCONʹRustͰઓͨ͠RustͷLTձ Shinjuku.rs #12 @ΦϯϥΠϯ https://forcia.connpass.com/event/187287/2020/10/20 ͯ͢ʹΌΜ (id:stefafafan)
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࣍• ࣗݾհ• ISUCONͱʁ• ࣄલ४උௐͨRustͷCrateͷհ• ISUCON༧બ• ֶͼɾײͳͲ2
ࣗݾհ• ͯ͢ʹΌΜ (id:stefafafan)• גࣜձࣾͯͳͷࣾһ• WebΞϓϦέʔγϣϯΤϯδχΞ• Rustॳ৺ऀ• ISUCON10Trust RustνʔϜͱͯ͠ࢀՃ
ISUCONͱʁ
ISUCONͱ• LINEגࣜձࣾओ࠵ʮIikanjini Speed Up ContestʯͷུশͰ͋Γɺ༩͑ΒΕͨWebΞϓϦέʔγϣϯΛߴԽ͠ڝ͍߹͏ίϯςετ• 1ਓʙ3ਓͷνʔϜͰࢀՃ͢Δ͜ͱ͕Ͱ͖ͯɺΞϓϦέʔγϣϯίʔυͷΈͳΒͣྫ͑nginxMySQLͷνϡʔχϯάͳͲߦ͏͜ͱʹͳΔ• ༻ҙ͞ΕͨϕϯνϚʔΫΛ࣮ߦ͢Δ͜ͱʹΑͬͯʮʯ͕֬ೝͰ͖Δ
ISUCONͱ• ࣾձਓֶੜࢀՃՄೳ• ܾউ্ҐʹೖΔͱۚ͋Δ※ʮISUCONʯɺLINEגࣜձࣾͷඪ·ͨొඪͰ͢ɻ http://isucon.net/
༧બग़·Ͱͷ४උ
༧બग़·Ͱͷ४උ• νʔϜ࡞Γͱׂ୲ܾΊ• nginxMySQLͷϩάղੳɾνϡʔχϯά• Rustͷษڧ• WebΞϓϦέʔγϣϯͱRust
༧બग़·Ͱͷ४උ• νʔϜ࡞Γͱׂ୲ܾΊˡࠓճ͞ͳ͍• nginxMySQLͷϩάղੳɾνϡʔχϯάˡࠓճ͞ͳ͍• RustͷษڧˡTour of RustΓ·ͨ͠ (https://tourofrust.com/)• WebΞϓϦέʔγϣϯͱRust
WebΞϓϦέʔγϣϯͱRust
ISUCONͷࢀߟ࣮ʹ͍ͭͯ• ISUCONͰԿछྨ͔ͷݴޠͰͷ࣮͕ఏڙ͞Ε্ͨͰڝٕ͕ߦΘΕΔ• ॳզʑRustͷࢀߟ࣮͕ͳ͍έʔεߟྀ͠ɺ1͔ΒRustͰΞϓϦέʔγϣϯΛ࣮͢Δ͜ͱݕ౼ʹೖΕ͍ͯͨ• RustͰWebΞϓϦέʔγϣϯΛ࡞ΔͷʹඞཁͳϥΠϒϥϦͳͲΛ͓ͬͯ͘ඞཁ͕͋Δ
WebΞϓϦέʔγϣϯΛRustͰهड़͢ΔͷʹԿ͕ඞཁͳͷ͔• WebϑϨʔϜϫʔΫ͕΄͍͠• ςϯϓϨʔτΤϯδϯ͕΄͍͠• APIୟ͍ͨΓ͢ΔͳΒHTTPΫϥΠΞϯτ͕΄͍͠• JSONฦ͢ͳΒSerialize/DeserializeͰ͖ΔΑ͏ʹ͍ͨ͠• MySQLPostgreSQLΫϥΠΞϯτ͕΄͍͠
actix-webuse actix_web::{web, App, HttpResponse, HttpServer};// ϢʔβҰཡΛදࣔ͢Δasync fn show_users() -> HttpResponse {HttpResponse::Ok().body(“Show users…”)}// ΤϯυϙΠϯτ͝ͱʹͲͷؔΛݺͿ͔ͳͲ͜͜Ͱهड़͢Δ#[actix_rt::main]async fn main() -> std::io::Result<()> {HttpServer::new(|| {App::new().service(web::scope(“/users”).route(“/show”, web::get().to(show_users)),)}).bind(“127.0.0.1:8088”)?.run().await}RustͷWeb frameworkhttps://github.com/actix/actix-web
actix-webREADMEʹػೳҰཡExample͕͍͔ͭ͘ࡌ͍ͬͯΔ
TeraMy Programming Languages{% for language in programming_languages %}{% if language.name == “rust” %}Rust Rules!!!!{% else %}{{ language.name }}{% endif %}{% endfor %}…Template engine inspiredby Jinja2https://github.com/Keats/tera
reqwestlet client = reqwest::Client::new();// form()ͷଞʹbody()ͱ͔json()ͱ͔͑Δlet res = client.post(“https://…”).form(¶ms).send().await?;RustͷHTTPΫϥΠΞϯτhttps://github.com/seanmonstar/reqwest
serdeuse actix_web::{HttpResponse, Responder};use serve::{Serialize, Deserialize};#[derive(Serialize, Deserialize)]struct User {id: i32,username: String,name: String}async fn user_detail_json() -> imp Responder {let user = User {id: 12345,username: “stefafafan”.to_string(),name: “ͯ͢ʹΌΜ”.to_string(),}// ͜Εactix_webͷ͚ؔͩͲJSONͱͯ͠ฦͤͯΔHttpResponse::Ok().json(user)}Rust͚ʹσʔλΛSerialize/Deserialize͢ΔϑϨʔϜϫʔΫhttps://github.com/serde-rs/serde
SQLxuse sqlx::{MySqlPool};async fn main() -> std::io::Result<()> {let pool = MySqlPool::connect(&DATABASE_URL).await;let row = sqlx::query!(“SELECT …”).fetch_all(&pool).await.unwrap();…}Rust͚SQLϥΠϒϥϦhttps://github.com/launchbadge/sqlx
ISUCON༧બ
ISUCON10 ༧બͷղઆͱߨධhttp://isucon.net/archives/55025156.html
ISUCON10 ༧બ֓ཁ• Πεʹ߹͏݅Λݕࡧ͢ΔαΠτ(ISUUMO) ҎԼͷΑ͏ͳը໘͕͋Δ• Πεͷݕࡧ• ݅ͷݕࡧ• Πεɾ݅ͷৄࡉը໘• ϚοϓΛϚεͰͳͧͬͯൣғʹؚ·ΕΔ݅Λදࣔ
ISUCON10 ༧બ֓ཁ• MySQLͱnginx͕ΘΕ͍ͯΔ• Rust࣮͋Δ• αʔό͕3͑Δ
ISUCON༧બTrust RustνʔϜͰͬͨ͜ͱ• αʔόʹ͋ΔRustͷ࣮ΛGitཧԼʹஔ͘• alppt-query-digestΛͬͯɺ͍ΤϯυϙΠϯτ͍ΫΤϦΛಛఆ• MySQLͷINDEXΛ͢ͳͲ• طଘͷRustίʔυΛோΊ͖ͯ͋Β͔ʹඇޮͳ͜ͱͬͯͦ͏ͳ෦Έ͚ͭͯվળ͠Α͏ͱͨ͠• 3αʔό͕͋ΔͷͰΞϓϦαʔό1 + DBαʔό2ߏʹ
ISUCON༧બ վળྫᶃɾΠεͷॎԣ෯͕݅ͷυΞʹೖΔ͔Ͳ͏͔ͷΫΤϦΛΈཱ͍ͯͯΔՕॴͷվળhttps://github.com/dekokun/ISUCON-2020-qualify/pull/12
ISUCON༧બ վળྫᶄɾchairςʔϒϧͱestateςʔϒϧͰผʑͷMySQLPoolΛࢀর͢ΔΑ͏ʹͯ͠ɺDBαʔόΛΘ͚ΒΕΔঢ়ଶʹhttps://github.com/dekokun/ISUCON-2020-qualify/pull/15
༧બͷ݁Ռ• զʑ༧બഊୀͨ͠• ISUCON10 ΦϯϥΠϯ༧બͷར༻ݴޠൺ http://isucon.net/archives/55008738.html• Goݴޠ͕1൪ਓؾͰ6ׂۙ͘ͷνʔϜ͕͍ͬͯͨ• Rust8Ͱ͏ͪ1͕ຊઓग़ (͍͢͝)
ֶͼɾײ• RustίϯύΠϧ࣌ʹஸೡʹ৭ʑͱౖͬͯ͘ΕΔͷͰ҆৺ײ͕͋Δ• ૉૣ͘վળ͍ͯ͘͠ඞཁͷ͋ΔISUCONʹؔͯ͠ίϯύΠϧ࣌ؒίʔυॻ࣌͘ͷखܰ͞ͱ͍͏໘ͰGo͍͍͢ͷͩΖ͏ͳͱࢥͬͨ• ࠓճͷ͏ͪͷνʔϜͷઓ͍ํΞϓϦͷίʔυΛΰϦΰϦॻ͘ͱ͍͏ײ͡Ͱͳ͔ͬͨͱ͍͏ͷ͋Γ·͢• RustΛ৮Δػձʹͳͬͨ͠ɺ༧બམͪͨͷͷͬͯΑ͔ͬͨ
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