自作HTTPルーターから新しいServeMuxへ

Transcript

1. ࣗ࡞HTTPϧʔλʔ͔Β ৽͍͠ServeMux΁ @bmf_san
 Go Conference 2024 2024.6.8
2. Who am Iʁ • Kenta Takeuchi • @bmf_san • bmf-san • https://bmf-tech.com/
3. ࣗ࡞HTTPϧʔλʔ IUUQTHJUIVCDPNCNGTBOHPCMJO
4. ࿩͢͜ͱ • Go1.22Ͱ௥Ճ͞ΕͨServeMuxͷػೳ • ServeMuxͱαʔυύʔςΟͷൺֱ • ServeMuxͷੑೳ • GoͷHTTPϧʔλʔબఆʹ͍ͭͯࢲݟ
5. ServeMuxͱ͸ʁ • net/http͕͍࣋ͬͯΔϚϧνϓϨΫα • ύεύλʔϯͱϦΫΤετΛϚονϯά͢Δϩ δοΫΛ࣋ͪɺϋϯυϥΛݺͼग़͢ • ServeMuxߏ଄ମ • cf. https://cs.opensource.google/go/go/+/refs/ tags/go1.22.2:src/net/http/server.go;l=2432
6. Go1.22Ͱ௥Ճ͞ΕͨServeMuxͷػೳ • HTTPϝιουʹΑΔϧʔςΟϯάͷఆ͕ٛ Մೳʹͳͬͨ
7. Go1.22Ͱ௥Ճ͞ΕͨServeMuxͷػೳ • ϫΠϧυΧʔυʹΑΔϧʔςΟϯάͷఆٛ ͕Մೳʹͳͬͨ
8. Go1.22Ͱ௥Ճ͞ΕͨServeMuxͷػೳ • ϫΠϧυΧʔυʹϚονͨ͠஋͸ɺ http.RequestͷPathValueϝιουͰऔಘՄ ೳ
9. Go1.22Ͱ௥Ճ͞ΕͨServeMuxͷػೳ • ׬શҰகͱ͍ͨ͠৔߹͸{$}Λ࢖͏
10. ServeMuxͱαʔυύʔςΟͷൺֱ • ServeMuxͱαʔυύʔςΟͷੑೳൺֱΛ࣮ࢪ • https://github.com/bmf-san/go-router-benchmark • ύεύλʔϯͷϚονϯάͷΈͰɺύεύλʔ ϯͷొ࿥ʢϧʔςΟϯάͷఆٛʣ͸ܭଌର৅֎ • gin-gonic/gin, go-chi/chi, gorilla/mux, labstack/ echoͳͲ
11. ServeMuxͱαʔυύʔςΟͷൺֱ • ServeMux͸ฏۉҎ্ͷύϑΥʔϚϯεΛ ͍࣋ͬͯΔ • ϫΠϧυΧʔυͷ਺ʢ/foo/{bar}/{baz}/ {baz}/…ʣ͕૿͑ΔͱੑೳྼԽ͕΍΍ݦஶ • ࣮ࡍͷϢʔεέʔεͱͯ͠͸ϨΞέʔε ͳͷͰؾʹ͢Δ͜ͱͰ͸ͳͦ͞͏
12. ServeMuxͷੑೳ • ੑೳͷྑ͍HTTPϧʔλʔ͸ϝϞϦޮ཰ͷྑ͍໦ߏ ଄ʢex. Radix TreeʣΛ࠾༻͍ͯ͠Δ • ServeMuxͰ͸ɺ࣮૷͕ෳࡶԽ͠΍͍͢σʔλߏ଄͸ ࠾༻͞Ε͍ͯͳ͍ • →༨ఔ࠷ѱͳσʔλߏ଄Λ࠾༻͠ͳ͍ݶΓɺ HTTPϧʔλʔ͕ϨΠςϯγ΍CPU࢖༻཰ʹେ͖ ͳӨڹΛٴ΅͞ͳ͍ʢͨͿΜʣ
13. GoͷHTTPϧʔλʔબఆʹ͍ͭͯࢲݟ
14. ΋͏ͪΐͬͱਅ໘໨ͳ΍ͭ
15. GoͷHTTPϧʔλʔબఆʹ͍ͭͯࢲݟ • HTTPϧʔλʔͷҠߦΛݕ౼͢ΔͳΒɾɾ • ࢖͍ͬͯΔHTTPϧʔλʔͷnet/httpͱͷޓ׵ੑ ͸ʁ • ServeMuxʹ͸ͳ͍ػೳ΍ੑೳ͕ඞཁ͔ʁ • ϧʔςΟϯάͷ༏ઌॱҐʹಠࣗͷϩδοΫ͕͋ Δ͔ʁ
16. ·ͱΊ • ϫΠϧυΧʔυΛ࢖ͬͨϧʔςΟϯά͕Ͱ͖ΔΑ͏ʹ ͳͬͨ • αʔυύʔςΟͱൺֱͯ͠΋ѱ͘ͳ͍ੑೳ • σʔλߏ଄ͱΞϧΰϦζϜͷબ୒͸อकੑͱੑೳͷό ϥϯε͕େࣄͦ͏ • ৽نʹબఆ͢ΔͳΒServeMuxɺطଘ৐Γ׵͑͸৭ʑݕ ౼͢Δͷ͕ྑͦ͞͏
17. ࣗ࡞HTTPϧʔλʔ͔Β৽͍͠ServeMux΁ • ࠓޙ͸ࣗ࡞HTTPϧʔλʔʢ≠αʔυύʔ ςΟʣͰ͸ͳ͘ServeMuxΛ࢖͍͍ͨͱࢥͬ ͍ͯ·͢ • αʔυύʔςΟ͸έʔεόΠέʔε
18. 5IBOL
    ZPV
    GPS
    ZPVS
    XBUDIJOHʂ
19. 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