CARVIEW |
Select Language
HTTP/2 200
date: Sat, 11 Oct 2025 09:02:40 GMT
content-type: text/html; charset=utf-8
cache-control: max-age=0, private, must-revalidate
cf-cache-status: DYNAMIC
link: ; rel=preload; as=style; nopush,; rel=preload; as=script; nopush,; rel=preload; as=style; nopush,; rel=preload; as=script; nopush,; rel=preload; as=script; nopush
nel: {"report_to":"heroku-nel","response_headers":["Via"],"max_age":3600,"success_fraction":0.01,"failure_fraction":0.1}
referrer-policy: strict-origin-when-cross-origin
report-to: {"group":"heroku-nel","endpoints":[{"url":"https://nel.heroku.com/reports?s=lYmcFlkMqyM%2FQUFgF47UXCpBoHxHsG6GrZrIkmQlEFc%3D\u0026sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d\u0026ts=1760173360"}],"max_age":3600}
reporting-endpoints: heroku-nel="https://nel.heroku.com/reports?s=lYmcFlkMqyM%2FQUFgF47UXCpBoHxHsG6GrZrIkmQlEFc%3D&sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d&ts=1760173360"
server: cloudflare
strict-transport-security: max-age=0; includeSubDomains
vary: Accept,Accept-Encoding
via: 2.0 heroku-router
x-content-type-options: nosniff
x-permitted-cross-domain-policies: none
x-request-id: 09c96668-7184-bbef-8bf0-c9819dc5afbd
x-runtime: 0.136245
x-xss-protection: 0
content-encoding: gzip
set-cookie: _secure_speakerd_session=3OO7oH%2BRiPpJhZvWMfT%2FfqOOIkp2dGelaWm9AfRfcF%2FVyr9HV0hozpV91FOy2DkQBBTSykB%2BXjcjGaXoMmCwKNOv9JA0KP0mM2OPQoUFdGVAE70Vyz%2BiU%2B%2B14k0VRz772SGexf4xOpKkCGM3%2BaVajvPFVnofRfe2w9%2Bh%2BwtS%2B%2BAQWakFLPlj%2FmB%2FOLGi%2BxfENzj8cIvh90KbC6rojvWGfI6u%2BJKnfrIzS8y4DOM0voHIyAhdDTiEIyH%2B332eHKe9epAHZFmDCtAZyR%2FnwjDr3mD6USYXGzDPHmfM45UWsDqRJ4ucNgMBuP9x0Vq1%2FihJe83gF7MgzYUQqugEBUHmORQoPPODHCGfXt6r2NXC%2BgyJyaF8fTHdkniyf%2B16iGpFsFbUppEwGafPrFlUsulkc4zU--uPMwj6LfAxCVwAel--XNlYew69jRhb3EzKd2VI1Q%3D%3D; HttpOnly; SameSite=Lax; Secure; Path=/; Expires=Sat, 25 Oct 2025 09:02:40 GMT
cf-ray: 98cd2e0bdfbac172-BLR
はてなにおけるLinuxネットワークスタックパフォーマンス改善 / Linux network performance improvement at hatena - Speaker Deck
はてなにおけるLinuxネットワークスタックパフォーマンス改善 / Linux network performance improvement at hatena
はてな・ペパボ技術大会〜インフラ技術基盤〜@京都
Yuuki Tsubouchi (yuuk1)
July 02, 2016
More Decks by Yuuki Tsubouchi (yuuk1)
Other Decks in Technology
Featured
Transcript
-
LB Proxy Web App Database ϘτϧωοΫʢϦιʔεʣ $16 .FN %JTL /8
$16 .FN %JTL $16 .FN %JTL /8 /8 $16 .FN %JTL /8 -
ϘτϧωοΫʢϦιʔεৄࡉʣ $16 .FN %JTL /8 )PTU VTFS TZT JPXBJU ʜ
VTFE DBDIFE CVGGFS ʜ XSJUF *014 SFBE *014 SFBE MBUFODZ ʜ UY CQT SY CQT UY QQT ʜ -
ωοτϫʔΫ*0ߴԽ w (C&ͳͲʹΑΔωοτϫʔΫଳҬ෯্ʹ ΑΓɺҰఆ࣌ؒʹॲཧ͢Δύέοτ͕૿େ w (CQT.QQT #ZUFTQBDLFU w ωοτϫʔΫελοΫॲཧͷ$16ෛՙ͕ߴ͘
ͳΔ w $16ΫϩοΫ্͕ΒͣϚϧνίΞ࣌ʹ ಥೖ w ͞·͟·ͳߴԽख๏͕࣮͞Ε͍ͯΔ -
NIC Kernel Process ύέοτड৴ ύέοτసૹ ϓϩτίϧॲཧ σʔλίϐʔ SFBE SFDW
ύέοτड৴ϑϩʔ ؆қ 5$1*1ͷύέοτϔομղੳɺνΣοΫαϜܭࢉͳͲ ΞϓϦέʔγϣϯϓϩηεγεςϜίʔϧͰͪड͚ -
NIC Process ύέοτड৴ϑϩʔ ৄղ ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ
,FSOFM 3JOH #VGGFS 4PDLFU #VGGFS ΧʔωϧͷॲཧΛղ -
NIC Process ύέοτड৴ϑϩʔ ৄղ ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ
,FSOFM 3JOH #VGGFS 4PDLFU #VGGFS ϋʔυ ׂΓࠐΈ ιϑτ ׂΓࠐΈ ΓͷॲཧιϑτׂΓࠐΈͰඇಉظॲཧ Ԇॲཧ ϋʔυׂΓࠐΈͰϦϯάόοϑΝʹύέοτΛੵΉ·Ͱ -
ͳͥछྨͷׂΓࠐΈʁ w ड৴ύέοτ૿ׂΓࠐΈ૿ίϯςΩ ετεΠον૿ߴ$16ෛՙ w ϋʔυׂΓࠐΈ͚ͩͩͱύέοτड৴ͷͨͼ ʹϓϩτίϧॲཧ·Ͱଈ࣮ߦ͞ΕΔ w ϋʔυׂΓࠐΈͰύέοτΛόοϑΝʹੵ Ή͚ͩʹͯ͠ɺճͷׂΓࠐΈॲཧͷ$16ෛ
ՙΛԼ͛Δ w ιϑτׂΓࠐΈʹΑΓɺϝΠϯͷϓϩτίϧ ॲཧΛඇಉظॲཧ -
/"1* /FX"1* w ޙճ͠ʹͯ͠ड৴ύέοτ͕૿͑ΕιϑτׂΓࠐΈ ͷ૿͑Δ w ෳͷύέοτΛ·ͱΊͯͭͷιϑτׂΓࠐΈͰॲཧ ͍ͨ͠ w ϋʔυׂΓࠐΈΛҰ୴ͱΊͯɺϙʔϦϯάʹΑΓϦϯά
όοϑΝ͔Βಉ࣌ʹύέοτΛऔΓग़͢ w ͨͩ͠ύέοτ͕গͳ͍߹ʹಛʹϨΠςϯγ͕େ͖ ͘ͳͬͯ͠·͏ͷͰɺड৴ύέοτ͕ଟ͍ͱ͖ͷΈ༗ޮ -
NIC Process /"1* ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ ,FSOFM
3JOH #VGGFS 4PDLFU #VGGFS ϋʔυׂΓࠐΈΛͱΊͯɺϙʔϦϯά QPMMJOH -
)"1SPYZͷ૿ w )"1SPYZΛ&$Ͱͷϩʔυόϥϯαͱͯ͠༻ w ιϑτׂΓࠐΈෛՙʹΑΓίΞͰ w $16ίΞ༨͍ͬͯΔͷʹɺ)"1SPYZͷεέʔϧ Ξτ͕ඞཁ w %/4ϥϯυϩϏϯʹΑΓɺෳͷ)"1SPYZ
ࢀরΛৼΓ͚ w ϩʔυόϥϯαΛϩʔυόϥϯε͠ͳ͍ͱ͍͚ͳ ͍ࣄଶ -
NIC Process *OUFSSVQU$PBMFTDJOH ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ ,FSOFM
3JOH #VGGFS 4PDLFU #VGGFS /*$͕ͭͷϋʔυׂΓࠐΈͰෳͷύέοτΛ·ͱΊͯసૹ ϋʔυ ׂΓࠐΈ ෳύέοτἧ͏·Ͱ౸ணΛͭͨΊϨΠςϯγ্͕Δ -
/*$υϥΠόͷύϥϝʔλݕূ w ༻/*$*OUFMͷJYHCF*OUFSSVQU5ISPUUMF3BUFΦ ϓγϣϯ w DYMBSHF͔ΒDYMBSHFʹ5$1ଓ w σϑΥϧτͰΣϒαʔϏεͷΑ͏ͳγϣʔτύ έοτ͕ࢧతͳঢ়گͰɺׂΓࠐΈ͕ߴ͘ͳΔ w
ΣϒαʔϏεͰͦ͜·ͰϨΠςϯγʹγϏΞͰ ͳ͍ w ݕূͷ݁ՌɺιϑτׂΓࠐΈͷ$16ར༻ TPGU ͕࠷େ·Ͱվળ l&$Ͱ43*07Λ͏ͱ͖ͷ/*$υϥΠόύϥϝʔλݕূz IUUQCMPHZVVLJPFOUSZ -
NIC Process ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ ͳͥෳͷίΞΛ͑ͳ͍ͷ͔ $16
ϋʔυׂΓࠐΈ͕͔͔ͬͨ$16ίΞͱಉ͡$16ίΞ͕ ιϑτׂΓࠐΈΛ࣮ߦ͢ΔͨΊ ϋʔυ ׂΓࠐΈ ιϑτ ׂΓࠐΈ -
NIC Process ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ $16 314
3FDFJWF1BDLFU4UFFSJOH NIC Process ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ $16 NIC Process ύέοτ ड৴ ϓϩτίϧ ॲཧ σʔλड৴ ॲཧ $16 ίΞׂؒΓࠐΈ -
314 3FDFJWF1BDLFU4UFFSJOH w ௨ৗϋʔυׂΓࠐΈ͕͔ͬͨ$16ͱಉ͡$16Ͱ ιϑτׂΓࠐΈΛ࣮ߦ w 314ɺଞͷ$16ʹίΞׂؒΓࠐΈͯ͠ɺϓϩτ ίϧॲཧΛଞͷ$16ʹͤΔ w 5$1ϔομͷ
TBEES TQPSU EBEES EQPSU ͷʹ ର͠$POTJTUFOU)BTIJOHʹΑΔࢄ w ݪଇಉ͡5$1ϑϩʔͳΒಉ͡$16ʹࢄ͞Ε ΔΑ͏ʹ w $16ΩϟογϡώοτΛߴΊͨ3'4 3FDFJWF 'MPX4UFFSJOH ͱ͍͏ͷ͋Δ l-JOVYͰϩʔυόϥϯαΩϟογϡαʔόΛϚϧνίΞεέʔϧͤ͞ΔͨΊͷΧʔωϧνϡʔχϯάz IUUQ CMPHZVVLJPFOUSZMJOVYOFUXPSLTUBDLUVOJOHSGT -
314Ͱ3FEJTνϡʔχϯά w 3FEJTεϨουಈ࡞͢ΔͨΊɺϚϧν ίΞεέʔϧ͠ͳ͍ w ΧʔωϧͷωοτϫʔΫ*0ॲཧ͢ΔεϨο υͱɺ3FEJTεϨουͷࢄͰ͖Δ w 314ࢄઌ$16൪߸ΛࢦఆͰ͖Δ w
$16 ʹࢄͤ͞Δ w UBTLTFUͰ$16ΞϑΟχςΟΛઃఆ͠ɺ 3FEJTεϨουΛ$16 Ҏ֎ʹݻఆ IUUQSFEJTJPUPQJDTCFODINBSLT -
ଞʹଟ͘ͷ ߴԽख๏͕͋Δ νΣοΫαϜΦϑϩʔυ 540 5$14FHNFOUBUJPO0⒐PBE -30 -BSHF3FDFJWF0⒐PBE 50&
5$10⒐PBE&OHJOF 344 3FDFJWF4JEF4DBMJOH "DDFMFSBUFE3'4 914 1$*QBTTUISPVHI 43*07 *OUFM%BUB%JSFDU*0 -
Ϣʔβϥϯυθϩίϐʔ w ύέοτΛ/*$͔ΒϢʔβϥϯυόΠύε w ࣮ w OFUNBQ w *OUFM%1%, w
ϢʔβϥϯυͰ5$1*1࣮ w ΔݶΓͰ࣮༻ஈ֊ͷωοτϫʔΫαʔό ·ͩͳ͍ -
ιέοτ"1*ͷݶք w େͷωοτϫʔΫαʔόͷ࣮104*9ͷι έοτ"1*ϕʔε w ιέοτ"1*ͰθϩίϐʔʹͰ͖ͳ͍ w ΧʔωϧͷιέοτόοϑΝʹੵΉඞཁ͕͋Δ w طଘͷωοτϫʔΫαʔόͷιέοτ"1*Λஔ͖
͑Δͷେม w Χʔωϧ͕ϋʔυͷਐԽʹ͍͔ͭͳ͘ͳΕɺ ීٴ͢Δ͔͠Εͳ͍ -
·ͱΊ w ΣϒγεςϜʹ͓͚ΔωοτϫʔΫ*0ෛՙͷҐஔ͚ͮ w -JOVYͷωοτϫʔΫελοΫͷΈΛհ w ͯͳͰ࣮ફͨ͠ωοτϫʔΫελοΫͷߴԽख๏ w ׂΓࠐΈΛ·ͱΊΔ*OUFSSVQU$PBMFTDJOH w
ϓϩτίϧॲཧΛϚϧνίΞεέʔϧͤ͞ΔͨΊͷ 3143'4 w )"1SPYZɺ3FEJTͷྫ w ઌٕज़ͱͯ͠ɺ/*$͔ΒϢʔβϥϯυόΠύε͢Δ ٕज़͕͋Δ -
04෦ͷٕज़ͷ֎ग़͠ w ιϑτׂΓࠐΈʹΑΔԆॲཧ w δϣϒΩϡʔͷΑ͏ͳඇಉظॲཧ w ׂΓࠐΈͱϙʔϦϯά w ϑϩϯτΤϯυʹ͓͚ΔϩϯάϙʔϦϯά 4FSWFS4FOU&WFOUT
w ϓϩηεεέδϡʔϥ w ྲྀߦΓͷ7.ίϯςφͷΦʔέετϨʔγϣ ϯ