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自作HTTPルーターから新しいServeMuxへ
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bmf_san
June 08, 2024
Programming
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自作HTTPルーターから新しいServeMuxへ
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June 08, 2024
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Transcript
ࣗ࡞HTTPϧʔλʔ͔Β ৽͍͠ServeMux @bmf_san Go Conference 2024 2024.6.8
Who am Iʁ • Kenta Takeuchi • @bmf_san • bmf-san
• https://bmf-tech.com/
ࣗ࡞HTTPϧʔλʔ IUUQTHJUIVCDPNCNGTBOHPCMJO
͢͜ͱ • Go1.22ͰՃ͞ΕͨServeMuxͷػೳ • ServeMuxͱαʔυύʔςΟͷൺֱ • ServeMuxͷੑೳ • GoͷHTTPϧʔλʔબఆʹ͍ͭͯࢲݟ
ServeMuxͱʁ • net/http͕͍࣋ͬͯΔϚϧνϓϨΫα • ύεύλʔϯͱϦΫΤετΛϚονϯά͢Δϩ δοΫΛ࣋ͪɺϋϯυϥΛݺͼग़͢ • ServeMuxߏମ • cf.
https://cs.opensource.google/go/go/+/refs/ tags/go1.22.2:src/net/http/server.go;l=2432
Go1.22ͰՃ͞ΕͨServeMuxͷػೳ • HTTPϝιουʹΑΔϧʔςΟϯάͷఆ͕ٛ Մೳʹͳͬͨ
Go1.22ͰՃ͞ΕͨServeMuxͷػೳ • ϫΠϧυΧʔυʹΑΔϧʔςΟϯάͷఆٛ ͕Մೳʹͳͬͨ
Go1.22ͰՃ͞ΕͨServeMuxͷػೳ • ϫΠϧυΧʔυʹϚονͨ͠ɺ http.RequestͷPathValueϝιουͰऔಘՄ ೳ
Go1.22ͰՃ͞ΕͨServeMuxͷػೳ • શҰகͱ͍ͨ͠߹{$}Λ͏
ServeMuxͱαʔυύʔςΟͷൺֱ • ServeMuxͱαʔυύʔςΟͷੑೳൺֱΛ࣮ࢪ • https://github.com/bmf-san/go-router-benchmark • ύεύλʔϯͷϚονϯάͷΈͰɺύεύλʔ ϯͷొʢϧʔςΟϯάͷఆٛʣܭଌର֎ • gin-gonic/gin,
go-chi/chi, gorilla/mux, labstack/ echoͳͲ
ServeMuxͱαʔυύʔςΟͷൺֱ • ServeMuxฏۉҎ্ͷύϑΥʔϚϯεΛ ͍࣋ͬͯΔ • ϫΠϧυΧʔυͷʢ/foo/{bar}/{baz}/ {baz}/…ʣ͕૿͑ΔͱੑೳྼԽ͕ݦஶ • ࣮ࡍͷϢʔεέʔεͱͯ͠ϨΞέʔε ͳͷͰؾʹ͢Δ͜ͱͰͳͦ͞͏
ServeMuxͷੑೳ • ੑೳͷྑ͍HTTPϧʔλʔϝϞϦޮͷྑ͍ߏ ʢex. Radix TreeʣΛ࠾༻͍ͯ͠Δ • ServeMuxͰɺ࣮͕ෳࡶԽ͍͢͠σʔλߏ ࠾༻͞Ε͍ͯͳ͍ •
→༨ఔ࠷ѱͳσʔλߏΛ࠾༻͠ͳ͍ݶΓɺ HTTPϧʔλʔ͕ϨΠςϯγCPU༻ʹେ͖ ͳӨڹΛٴ΅͞ͳ͍ʢͨͿΜʣ
GoͷHTTPϧʔλʔબఆʹ͍ͭͯࢲݟ
͏ͪΐͬͱਅ໘ͳͭ
GoͷHTTPϧʔλʔબఆʹ͍ͭͯࢲݟ • HTTPϧʔλʔͷҠߦΛݕ౼͢ΔͳΒɾɾ • ͍ͬͯΔHTTPϧʔλʔͷnet/httpͱͷޓੑ ʁ • ServeMuxʹͳ͍ػೳੑೳ͕ඞཁ͔ʁ • ϧʔςΟϯάͷ༏ઌॱҐʹಠࣗͷϩδοΫ͕͋
Δ͔ʁ
·ͱΊ • ϫΠϧυΧʔυΛͬͨϧʔςΟϯά͕Ͱ͖ΔΑ͏ʹ ͳͬͨ • αʔυύʔςΟͱൺֱͯ͠ѱ͘ͳ͍ੑೳ • σʔλߏͱΞϧΰϦζϜͷબอकੑͱੑೳͷό ϥϯε͕େࣄͦ͏ •
৽نʹબఆ͢ΔͳΒServeMuxɺطଘΓ͑৭ʑݕ ౼͢Δͷ͕ྑͦ͞͏
ࣗ࡞HTTPϧʔλʔ͔Β৽͍͠ServeMux • ࠓޙࣗ࡞HTTPϧʔλʔʢ≠αʔυύʔ ςΟʣͰͳ͘ServeMuxΛ͍͍ͨͱࢥͬ ͍ͯ·͢ • αʔυύʔςΟέʔεόΠέʔε
5IBOLZPVGPSZPVSXBUDIJOHʂ
Appendix • ࣗ࡞HTTPϧʔλʔ͔Β৽͍͠ServeMux • https://bmf-tech.com/posts/ %e8%87%aa%e4%bd%9cHTTP%e3%83%ab%e3%8 3%bc%e3%82%bf%e3%83%bc%e3%81%8b%e3%82 %89%e6%96%b0%e3%81%97%e3%81%84ServeMu x%e3%81%b8#14- HTTP%E3%83%AB%E3%83%BC%E3%82%BF%E3
%83%BC%E3%81%AE%E3%83%91%E3%83%95% E3%82%A9%E3%83%BC%E3%83%9E%E3%83%B3 %E3%82%B9%E3%81%AB%E3%81%A4%E3%81% 84%E3%81%A6