高集積コンテナホスティングにおけるボトルネックとその解法

by Kazuhiko Yamashita

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ʙ࣋ͯ༨ͯ͠ΔϑϥετϨʔγϣϯɺ:PVWFHPUBOFBTZEBZʙ !QZBNB(.01FQBCP *OD CVJMEFSTDPOUPLZP ߴूੵίϯςφϗεςΟϯάʹ ͓͚ΔϘτϧωοΫͱͦͷղ๏

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γχΞɾϓϦϯγύϧΤϯδχΞ ࢁԼ࿨඙!QZBNB ϗεςΟϯάࣄۀ෦νʔϑςΫχΧϧϦʔυ

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IUUQTUFOTOBQPODPNBSDIJWFT

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-JOVYͷ౷߹Ϣʔβʔ؅ཧ 50.-ܗࣜ )551+40/ -%"1΍%#ͷ؅ཧ͕ෆཁ ѻ͍΍͍͢ϑΥʔϚοτ ൚༻ੑɾ֦ுੑ IUUQTTUOTKQ

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-JOVY MJCOTTTUOT JEFYBNQMF VJE FYBNQMF HJE FYBNQMF HSPVQT FYBNQMF VTFS OBNFFYBNQMF <\ OBNFFYBNQMF JE ^> γϯϓϧͰࣗ༝౓ͷߴ͍ઃܭ αʔό࣮૷΋͍ΘΏΔ3&45GVM෩ɺMJCOTTTUOT͔Β೚ҙͷίϚϯυΛ࣮ߦͨ͠ ݁ՌΛར༻Ͱ͖Δ࢓૊Έ΋͋ΔͷͰΫϥΠΞϯτଆͷ֦ு΋ࣗ༝ࣗࡏ JE LFZT<TTI> HSPVQ@JE TUOTDPOG

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EPDLFSSVOOBNFTUOTETUOTTUOTMBUFTU EPDLFSFYFDJUTUOTCJOCBTI JEFYBNQMF VJE FYBNQMF HJE FYBNQMF HSPVQT FYBNQMF ͙͢ʹࢼͤ·͢ DVSMGT4-IUUQTSFQPTUOTKQTDSJQUTZVNSFQPTIcTI DVSMGT4-IUUQTSFQPTUOTKQTDSJQUTBQUSFQPTIcTI EPDLFS $FOU04 VCVOUVEFCJBO

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ϗεςΟϯάࣄۀ &$ࢧԉࣄۀ ϋϯυϝΠυɾͦͷଞࣄۀ

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೥ ϩϦϙοϓʂϨϯλϧαʔόαʔϏεఏڙ։࢝ ೥ ೥ ೥ ϔςϜϧαʔϏεఏڙ։࢝ 1ࢁ͕ϖύϘʹೖࣾʂʂ̍ ೥݄೔ ࣛࣇౡݝग़ਫࢢʹ͓͍ͯ1ࢁര஀ʂʂ̍ ೥ ݱࡏɾ૑ۀ೥໨ ϜʔϜʔυϝΠϯαʔϏεఏڙ։࢝

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ϨϯλϧαʔόͱΫϥ΢υͷ͍͍ͱ͜ͲΓ ϩϦϙοϓʂϚωʔδυΫϥ΢υ IUUQTNDMPMJQPQKQ

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ίϯςφΤϯδϯʹIBDPOJXBΛ࠾༻ wNSVCZ੡ίϯςφΤϯδϯ w3VCZ%4-ͰίϯςφఆٛՄೳ wϑΥʔΫલޙͳͲ೚ҙͷϑοΫ  ࣮૷͕Մೳ IUUQTHJUIVCDPNIBDPOJXBIBDPOJXB

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ࠓ೔࿩͢͜ͱ w ෼Ͱ͋ͳͨ΋ίϯςφϚΠελʔߨ࠲ w ϝϞϦঢ়ଶىҼͷίϯςφ཯଎໰୊ w γεςϜ্ݶͱਓྨͷر๬ʹ͍ͭͯ w ωοτϫʔΫίϚϯυىҼͷίϯςφ཯଎໰୊ w γεςϜௐࠪίϚϯυອஊ w ετϨʔδͷເͱల๬

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෼Ͱ͋ͳͨ΋ ίϯςφϚΠελʔߨ࠲

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ίϯςφͷߏ੒ཁૉ OBNFTQBDF DISPPU DHSPVQ DBQBCJMJUZ

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ͦ΋ͦ΋ ίϯςφ

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ίϯςφʹϓϩηε

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OBNFTQBDF IUUQTMJOVYKNPTEOKQIUNM-%1@NBOQBHFTNBOVOTIBSFIUNM SPPU!MPDBMIPTUdJQB MP-001#"$, 61 -08&3@61NUVREJTDOPRVFVF MJOLMPPQCBDLCSE JOFUTDPQFIPTUMP FOQT#30"%$"45 .6-5*$"45 61 -08&3@61 MJOLFUIFSBCSE⒎⒎⒎⒎⒎⒎ JOFUCSETDPQFHMPCBMFOQT SPPU!MPDBMIPTUdCBTI SPPU!MPDBMIPTUdVOTIBSFOFU SPPU!MPDBMIPTUdJQB MP-001#"$,NUVREJTDOPPQTUBUF%08/HSPVQEFGBVMURMFO MJOLMPPQCBDLCSE

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DISPPU IUUQTMJOVYKNPTEOKQIUNM-%1@NBOQBHFTNBODISPPUIUNM NLEJSDPOUBJOFS SPPU!MPDBMIPTUIPNFWBHSBOUDPOUBJOFSDQSCJOMJCMJCDPOUBJOFS DISPPUDPOUBJOFS CBTIMTMUS ESXYSYSY4FQCJO ESXYSYSY4FQMJC ESXYSYSY4FQMJC

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DHSPVQ IUUQNBOPSHMJOVYNBOQBHFTNBODHSPVQTIUNM wDQVDGT@QFSJPE@VT w$16Ϧιʔεͷׂ౰ִؒϚΠΫϩඵ wDQVDGT@RVPUB@VT wׂ౰ִؒͷ಺ɺλεΫ͕࣮ߦ͞ΕΔϚΠΫϩඵ ϓϩηε͝ͱʹ$16΍ϝϞϦͳͲͷ  ϦιʔεΛ੍ݶ DGT@QFSJPE@VT ඵ DGT@RVPUB@VT ඵ ˋ

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DBQBCJMJUZ IUUQTMJOVYKNPTEOKQIUNM-%1@NBOQBHFTNBODBQBCJMJUJFTIUNM -JOVYͷݖݶ؅ཧͷ࢓૊Έɻϓϩηε΍ ϑΝΠϧ୯ҐͰ෇༩͢Δ͜ͱ͕Ͱ͖Δ QTFGcHSFQBQBDIF SPPU VTSTCJOBQBDIFLTUBSU XXXEBUB VTSTCJOBQBDIFLTUBSU XXXEBUB VTSTCJOBQBDIFLTUBSU SPPUQUTHSFQDPMPSBVUPBQBDIF SPPU!MPDBMIPTUdHFUQDBQT $BQBCJMJUJFTGPSA DBQ@DIPXO DBQ@EBD@PWFSSJEF DBQ@OFU@CJOE@TFSWJDF

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ܰྔԾ૝Խ؀ڥΛ࣮ݱ͢Δٕज़ -9$ͰֶͿίϯςφೖ໳!UFO@GPSXBSE IUUQHJIZPKQBENJOTFSJBMMJOVY@DPOUBJOFST

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'BTU$POUBJOFSΞʔΩςΫνϟ

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֮͑ͯ·͔͢ʁ 'BTU$(*

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EJTQBUDIFS OHJOY DPOUBJOFS ίωΫγϣϯ νΣοΫ DPOUBJOFS ىಈ τϥϑΟοΫ ϦΫΤετΛܖػʹίϯςφΛىಈ͠ Ұఆ࣌ؒॲཧޙɺࣗಈతʹఀࢭ͢Δ 'BTU$POUBJOFS IUUQTICNBUTVNPUPSKQFOUSZ

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ϢʔβʔσʔλΛετϨʔδʹ࣋ͭ͜ͱͰ εςʔτϑϧͳಈతίϯςφΞʔΩςΫνϟΛ࣮ݱ Ϣʔβʔσʔλ͸ετϨʔδʹ 4FSWFS 4FSWFS 4UPSFHF 6TFS%BUB DPOUBJOFS DPOUBJOFS

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աෛՙ࣌ͳͲ΋ࣗಈͰ࣍ͷϦΫΤετ͔Β Φʔτεέʔϧ Φʔτεέʔϧ΋଎ 4FSWFS 4FSWFS 4UPSFHF 6TFS%BUB DPOUBJOFS DPOUBJOFS 4FSWFS DPOUBJOFS

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ϋʔυ΢ΣΞো֐͕ى͖ͯ΋࣍ͷϦΫΤετ͔Β ۭ͍ͯΔϗετͰىಈ ϋʔυো֐΋ࣗಈͰҠಈ 4FSWFS 4FSWFS 4UPSFHF 6TFS%BUB DPOUBJOFS DPOUBJOFS 4FSWFS DPOUBJOFS DPOUBJOFS

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'BTU$POUBJOFSͷ ίΞόϦϡʔ ίϯςφΛ͍͔ʹ଎͘ ىಈͤ͞Δ͔ʁ

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'BTU$POUBJOFSʹ͓͚Δ ίϯςφͷߴ଎ىಈͱ ىಈ਺্ݶͱͷ ઓ͍ͷه࿥

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ίϯςφىಈ؀ڥ w $16ίΞ w ϝϞϦ(# w "QBDIF)551%ϓϩηεNBTUFS Ͱίϯςφىಈ͍ͨ͠

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ϝϞϦঢ়ଶىҼͷ ίϯςφ཯଎໰୊

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ࣄ৅ɿ؂ࢹίϯςφͷμ΢ϯ w ֎ܗ؂ࢹΛߦ͍ͬͯΔίϯςφͷ )551ϨεϙϯελΠϜ͕ᮢ஋௒ӽ

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OFUOTBEE BQQMZ@OBNFTQBDF .PVOUJOH 0,BQQMZ@pMFTZTUFN 0,BQQMZ@SMJNJU 0,BQQMZ@DHSPVQ 0,BQQMZ@SFNPVOU 0,BQQMZ@VTFS@OBNFTQBDF 0,EP@DISPPU 0,BQQMZ@DBQBCJMJUZ 0,BQQMZ@TFDDPNQ 0,TXJUDI@HVJE $POUBJOFSGPSLTVDDFTT ϩάͰ͸OFUOTͷ௥Ճ͕཯଎

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JQOFUOTBEEYYYY JQOFUOTFYFDYYYYZZZZ JQίϚϯυ -JOVYͷ*'पΓͷػೳ͚ͩͰͳ͘ɺOFUOTͷ௥Ճ΍ɺ OFUOTʹର͢Δૢ࡞Λ࣮ݱ͍ͯ͠Δ

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ௐࠪํ๏

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೔ຊݹདྷΑΓ఻ΘΔ ఻౷ܳೳ ʮצʯ

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wϓϩηεͷൃߦ͢ΔγεςϜίʔϧΛτϨʔε TUSBDF SPPU!MPDBMIPTUdTUSBDFUU5T4UJNFJQOFUOTBEEFYBNQMF FYFDWF TCJOJQ <JQ OFUOT BEE FYBNQMF> <WBST> CSL /6-- YF BDDFTT FUDMETPOPIXDBQ '@0, &/0&/5 /PTVDIpMFPS EJSFDUPSZ NNBQ /6-- 1305@3&"%c1305@83*5& ."1@13*7"5&c ."1@"/0/:.064 YGCBD ʜ

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TUSBDFUU5TJQOFUOTBEEFYBNQMF

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wγεςϜίʔϧͷϘτϧωοΫΛγϯϘϧϨϕϧ·Ͱಛఆ QFSG QFSGUPQ QFSGSFDPSEDBMMHSBQIEXBSGQQJE QFSGSFQPSUH(TUEJP

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JQFOUSZ@4:4$"--@@GBTUQBUI c FOUSZ@4:4$"--@@GBTUQBUI c cTZT@VOTIBSF cVOTIBSF@OTQSPYZ@OBNFTQBDFT cDSFBUF@OFX@OBNFTQBDFT cDPQZ@OFU@OT cc ccTFUVQ@OFU ccPQT@JOJU ccc cccJQUBCMF@pMUFS@OFU@JOJU cccJQU@SFHJTUFS@UBCMF cccc ccccYU@SFHJTUFS@UBCMF ccccYU@SFQMBDF@UBCMF cccc@@LNBMMPD@OPEF cccc@@TMBC@BMMPD ccccc ccccc@@@TMBC@BMMPD cccccEFBDUJWBUF@TMBC cccccc cccccc@@DNQYDIH@EPVCMF@TMBCJTSB ccccccVOTIBSF ccccccYB

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4MBC DBUQSPDNFNJOGPcHSFQJTMBC 4MBCL# (ʘ ?P? ʗ

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NNTMVCD ָ͘͠ಡΜͰֶͿ-JOVY IUUQTHJUIVCDPNUPSWBMETMJOVY

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͍͑ͬʂ TZODFDIPQSPDTZTWNESPQ@DBDIFT TMBCUPQͰ֬ೝͨ͠ͱ͜ΖɺEFOUSZΩϟογϡ͕ ଟ͔ͬͨͨΊɺΩϟογϡͷΫϦΞ͕༗ޮͱߟ͑ͨ

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ߋʹ͜͏͡Όʂʂ̍ CBTIDTZODFDIPa QSPDTZTWNESPQ@DBDIFT

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4MBC͸ංେԽ͢Δͱ ϘτϧωοΫͱͳΔ Ұൠతʹ͸4MBCͷංେԽʹىҼͯ͠4XBQϝϞϦ͕ར༻͞Ε γεςϜશମ͕཯଎ʹͳΔ͜ͱ͕ଟ͍͕ɺ୯७ʹ࢖༻ྔ͕ ଟ͍ͱॳظԽॲཧ࣌ͷϩοΫͰϘτϧωοΫͱͳΔ͜ͱ͕͋Δɻ ·ͨ͜ΕΒͷ04ϨΠϠͷ࢓૊Έͷௐࠪʹ͓͍ͯ͸TUSBDF΍ QFSGΛར༻͢Δ͜ͱͰ͋ͨΓΛ͚ͭɺιʔεΛಡΈࠐΉ͜ͱͰ ݪҼʹର͢ΔԾઃΛཱͯΔ͜ͱ͕Ͱ͖Δɻ

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γεςϜ্ݶͱ ਓྨͷر๬ʹ͍ͭͯ

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ࣄ৅ɿίϯςφ͕ىಈ͠ͳ͍ w ίϯςφىಈ਺ෛՙݕূதʹ ίϯςφ͕ىಈ͠ͳ͘ͳͬͨ

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ίϯςφͷน

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DBOUBEEFUI@I@W(MW(W[UPCSJEHFIBDPOJXB&YDIBOHFGVMM SPPU!DPNQVUFdCSDUMTIPXcXDM CSJEHFͷγεςϜ্ݶʁ

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ίϯςφωοτϫʔΫ -JOVY#SJEHF OFUOT DPOUBJOFS WFUIQBJS BQQMZOFUOT IBDPOJXB FUI@I@YYYYYYY DPOUBJOFS@YYYY

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ίϯςφωοτϫʔΫ -JOVY#SJEHF OFUOT DPOUBJOFS WFUIQBJS BQQMZOFUOT IBDPOJXB FUI@I@YYYYYYY DPOUBJOFS@YYYY ্ݶ

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EFpOF#3@1035@#*54 EFpOF#3@."9@10354 #3@1035@#*54 OFUCSJEHFCS@QSJWBUFI wఆ਺Λมߋ͠ɺΧʔωϧίϯύΠϧ͢Ε͹γεςϜ্ݶ͸ มߋՄೳɻ

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ϒϦοδΛ෼ࢄ -JOVY#SJEHF OFUOT DPOUBJOFS WFUIQBJS BQQMZOFUOT IBDPOJXB FUI@I@ DPOUBJOFS@ -JOVY#SJEHF IBDPOJXB999 OFUOT FUI@I@ DPOUBJOFS DPOUBJOFS@ BQQMZOFUOT OFUOT DPOUBJOFS WFUIQBJS BQQMZOFUOT FUI@I@ DPOUBJOFS@

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-JOVY#SJEHF͸্ݶ͕͋Δ -JOVY#SJEHFʹ௥ՃͰ͖Δ*'͸ݸ͕γεςϜ্ݶͰ͋Δɻ ճආ͢Δʹ͸ఆ਺ͷ஋Λม͑ͯΧʔωϧίϯύΠϧ͢ΔɺϒϦοδΛ ෼ׂ͢Δɺ0QFOW4XJUDIʹஔ͖׵͑Δͱ͍͏खஈ͕͋Δɻ

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ωοτϫʔΫίϚϯυىҼͷ ίϯςφ཯଎໰୊

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ࣄ৅ ɿ $16ɾϝϞϦ͸༨༟͕͋Δ͕ -"͚͕ͩߴ͍ w ίϯςφىಈ਺ෛՙݕূதʹίϯ ςφͷىಈ͕஗͘ͳΓɺ-"͕ߴಅ

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1*%64&313/*7*353&44)34$16.&.5*.&$0.."/% SPPUHH4DBEWJTPS SPPU3UPQ VCVOUV3BQBDIF SPPU%SPVUF SPPU3IBDPOJXB SPPU%SPVUF SPPU%SPVUF SPPU%JQ SPPU%SPVUF SPPU%JQ SPPU3IBDPOJXB SPPU3IBDPOJXB SPPU3IBDPOJXB SPPU3IBDPOJXB SPPU%SPVUF SPPU3IBDPOJXB UPQ

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༨ஊDBEWJTPS IUUQTHJUIVCDPNHPPHMFDBEWJTPS

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UJNFJQOFUOTBEEUFTU 35/&5-*/,BOTXFST*OWBMJEBSHVNFOU 35/&5-*/,BOTXFST*OWBMJEBSHVNFOU 35/&5-*/,BOTXFST*OWBMJEBSHVNFOU 35/&5-*/,BOTXFST*OWBMJEBSHVNFOU SFBMNT VTFSNT TZTNT JQOFUOTBEE͕ࢗ͞Δ

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QFSGSFDPSEDBMMHSBQIEXBSGJQOFUOTBEEFYBNQMF QFSGSFQPSUH(TUEJP JQFOUSZ@4:4$"--@@GBTUQBUI c FOUSZ@4:4$"--@@GBTUQBUI c cTZT@PQFO cc ccEP@TZT@PQFO ccc cccEP@pMQ@PQFO cccc ccccQBUI@PQFOBU ccccc TZT@PQFO͕ࢧ഑త

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TUSBDFJQOFUOTBEEFYBNQMF PQFO WBSSVOOFUOTOFUOT@BECB 0@3%0/-: TFOENTH \NTH@OBNF \TB@GBNJMZ"'@/&5-*/, QJE HSPVQT^ SFDWNTH \NTH@OBNF \TB@GBNJMZ"'@/&5-*/, QJE HSPVQT^ DMPTF PQFO WBSSVOOFUOTOFUOT@DGDGEBC 0@3%0/-: TFOENTH \NTH@OBNF \TB@GBNJMZ"'@/&5-*/, QJE HSPVQT^ SFDWNTH \NTH@OBNF \TB@GBNJMZ"'@/&5-*/, QJE HSPVQT^ DMPTF طଘͷOFUOT͢΂ͯʹ ໰͍߹Θ͍ͤͯΔ

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GSFF UPUBMVTFEGSFFTIBSFECV⒎DBDIFBWBJMBCMF .FN˒ 4XBQUPUBM Ϧιʔεঢ়ଶ wखݩͷ7JSUVBM#PYͰ࠶ݱͤͨ͞ͱ͜ΖϝϞϦ͕  ރׇঢ়ଶͰ͋ͬͨ

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ௐ͔ࠪΒಘΒΕΔԾઆͱଧͪख wϝϞϦ͕ރׇঢ়ଶͰ͋ΔͱPQFO͕ࢧ഑త wTFOENTHͷ಺༰͕ෆཁͰ͋Ε͹ɺطଘͷOFUOTʹ  ର͢ΔॲཧΛ࡟আ͢Ε͹ɺOFUOTͷϘτϧωοΫ͕֎ͤΔ

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HEC͔Β͋ͨΓΛ͚ͭΔ HECJQ HEC CTFOENTH HEC SVOOFUOTBEEUFTU@ 4UBSUJOHQSPHSBNTCJOJQOFUOTBEEUFTU@ #SFBLQPJOU TFOENTH BUTZTEFQTVOJYTZTDBMMUFNQMBUF4 TZTEFQTVOJYTZTDBMMUFNQMBUF4/PTVDIpMFPSEJSFDUPSZ HEC CU TFOENTH BUTZTEFQTVOJYTZTDBMMUFNQMBUF4 YDCJOSUOM@UBML YCEJO YGJOOFUOT@NBQ@JOJU YDFJOEP@OFUOT YJO

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શͯ͸ιʔεʹॻ͍ͯ͋Δ

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OFUMJOLΛར༻ͨ͠/4*%औಘ XIJMF FOUSZSFBEEJS EJS /6-- \ JG TUSDNQ FOUSZE@OBNF DPOUJOVF JG TUSDNQ FOUSZE@OBNF DPOUJOVF OTJEHFU@OFUOTJE@GSPN@OBNF FOUSZE@OBNF JG OTJE OFUOT@NBQ@BEE OTJE FOUSZE@OBNF ^ JQJQOFUOTD

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࠷৽ͷιʔεͰ͸͢Ͱʹύον

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OFUOTͷ௥Ճ͕ര଎ʹʂʂ̍ TUSBDFUUTPTUSBDF@JQOFUOTBEEUFTU@ IFBETUSBDF@ FYFDWF TCJOJQ <JQ OFUOT BEE UFTU@> <WBST> UBJMTUSBDF@ FYJUFEXJUI ύοέʔδόʔδϣϯൺֱͰඵ͔ΒඵʹͳΓ ഒ͘Β͍ૣ͘ͳͬͨ TUSBDFUUTPTUSBDF@JQOFUOTBEEUFTU@ IFBETUSBDF@ FYFDWF TCJOJQ <JQ OFUOT BEE UFTU@> <WBST> UBJMTUSBDF@ FYJUFEXJUI CFGPSF BGUFS

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IBDPOJXBTPGUJJ[VLBMPMJQPQJPDEQBSFOU<>JQMJOLTFU FUIDE@IVQ TZTUFNEVEFWE<>$PVMEOPUHFOFSBUFQFSTJTUFOU."$BEESFTTGPS FUIDE@I/PTVDIpMFPSEJSFDUPSZ ϘτϧωοΫ͕ભҠ͢Δ IUUQTHJUIVCDPNTZTUFNETZTUFNEJTTVFT

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."$"EESFTT1PMJDZͷมߋ FUDTZTUFNEOFUXPSLEFGBVMUMJOL ."$"EESFTT1PMJDZQFSTJTUFODF ."$"EESFTT1PMJDZSBOEPN ."$"EESFTT1PMJDZOPOF ࠶ىಈޙ΋ಉ͡.BDΞυϨεΛ෷͍ग़͢ σόΠε௥Ճ࣌ʹɺϥϯμϜͳ.BDΞυϨεΛ෷͍ग़͢ ΧʔωϧʹΑͬͯ෷͍ग़͞Εͨ.BDΞυϨεΛར༻͢Δ

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HECJTศར wطଘͷϓϩηεɺίϚϯυʹ͓͍ͯ͋ͨΓΛ͚ͭΔͱ͖  όοΫτϨʔε͸େ͖ͳख͕͔ΓʹͳΔ w-JOVYʹࠝแ͞Ε͍ͯΔίϚϯυ͸ͦΕͳΓʹ։ൃ͕  ଓ͍͓ͯΓɺίϛοτಡΉͱ࠷దԽ͕ਐΜͰ͍Δɻ wNSVCZJQSPVUFཉ͍͠

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ίϯςφ

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IBDPOJXBXJOUFSLVSPTBLJ<>JQOFUOTBEEOFUOT@BEF IBDPOJXBXJOUFSLVSPTBLJ<>JQMJOLBEEFUIBEF@IUZQF WFUIQFFSOBNFFUIBEF@D ࠶ͼɺJQOFUOTBEE͕཯଎ OFUOTͷ௥Ճʹඵ͘Β͍͔͔Δ

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JQFOUSZ@4:4$"--@@GBTUQBUI c FOUSZ@4:4$"--@@GBTUQBUI c cTZT@NPVOU cc ccEP@NPVOU ccc cccHSBGU@USFF cccBUUBDI@SFDVSTJWF@NOU cccc ccccQSPQBHBUF@NOU ccccc cccccQSPQBHBUF@POF cccccc ccccccDPQZ@USFF ccccccDMPOF@NOU ccccccc cccccccBMMPD@WGTNOU DPQZ@USFF͕ࢧ഑త

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DPQZ@USFF   GTOBNFTQBDFD Ϛ΢ϯτ࣌ͷϑϥά͕.4@#*/%ͳͱ͖ʹMPPQCBDLϚ΢ϯτ ͯ͠ɺϚ΢ϯτͷπϦʔߏ଄Λίϐʔ͢Δ

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XIJMF NPVOU /&5/4@36/@%*3 OPOF .4@4)"3&%c.4@3&$ /6-- \ 'BJMVOMFTTXFOFFEUPNBLFUIFNPVOUQPJOU JG FSSOP&*/7"-ccNBEF@OFUOT@SVO@EJS@NPVOU \ GQSJOUG TUEFSS NPVOUNBLFTIBSFETGBJMFETaO /&5/4@36/@%*3 TUSFSSPS FSSOP SFUVSO ^ 6QHSBEF/&5/4@36/@%*3UPBNPVOUQPJOU JG NPVOU /&5/4@36/@%*3 /&5/4@36/@%*3 OPOF .4@#*/%c.4@3&$ /6-- \ GQSJOUG TUEFSS NPVOUCJOETTGBJMFETaO /&5/4@36/@%*3 /&5/4@36/@%*3 TUSFSSPS FSSOP SFUVSO ^ NBEF@OFUOT@SVO@EJS@NPVOU ^ JQJQOFUOTD

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JG VOTIBSF $-0/&@/&8/&5 \ GQSJOUG TUEFSS 'BJMFEUPDSFBUFBOFXOFUXPSLOBNFTQBDFaTaTaO OBNF TUSFSSPS FSSOP HPUPPVU@EFMFUF ^ #JOEUIFOFUOTMBTUTP*DBOXBUDIGPSJU JG NPVOU QSPDTFMGOTOFU OFUOT@QBUI OPOF .4@#*/% /6-- \ GQSJOUG TUEFSS #JOEQSPDTFMGOTOFUTGBJMFETaO OFUOT@QBUI TUSFSSPS FSSOP HPUPPVU@EFMFUF ^ JQJQOFUOTD ͜ͷϓϩηεͷOFUOTΛ෼཭͢Δ

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զʑͷ༻్Ͱ͸.4@3&$ෆཁ SPPUOBNFTQBDF OFUOTBEE OFUOTEFM GPSL XBJUQJE VOTIBSF DPOUBJOFSOBNFTQBDF QSPDFTT EPOF

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QZBNBJQ ίϚϯυര஀

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QJQίϚϯυ͸΍Ίͨ΄͏͕͍͍

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ίϯςφ

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IBDPOJXBUJHIUJJ[VLB<>JQOFUOTBEEOFUOT@BEF IBDPOJXBUJHIUJJ[VLB<>JQMJOLTFUFUIBEF@DOFUOT OFUOT@BEFVQ IBDPOJXBUJHIUJJ[VLB<>JQOFUOTFYFDOFUOT@BEFJQBEESBEE EFWFUIBEF@D IBDPOJXBUJHIUJJ[VLB<>JQOFUOTFYFDOFUOT@BEFJQMJOLTFU MPVQ IBDPOJXBUJHIUJJ[VLB<>JQOFUOTFYFDOFUOT@BEFTCJOSPVUF BEEEFGBVMUHX JQOFUOTFYFD͕཯଎ ௨৴Ͱ͖ΔΑ͏ʹͳΔ·Ͱඵ͘Β͍͔͔Δ

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JQFOUSZ@4:4$"--@@GBTUQBUI c FOUSZ@4:4$"--@@GBTUQBUI c cTZT@VOTIBSF cVOTIBSF@OTQSPYZ@OBNFTQBDFT cDSFBUF@OFX@OBNFTQBDFT cDPQZ@NOU@OT cc ccDPQZ@USFF ccc cccDMPOF@NOU cccc ccccBMMPD@WGTNOU ccccc ccccc@@BMMPD@QFSDQV cccccc ccccccQDQV@BMMPD ccccccc cccccccQDQV@BMMPD@BSFB cccccccc ccccccccVOTIBSF ccccccccOFUOT@TXJUDI

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TOQSJOUG OFU@QBUI TJ[FPG OFU@QBUI TT /&5/4@36/@%*3 OBNF OFUOTPQFO OFU@QBUI 0@3%0/-:c0@$-0&9&$ JG OFUOT \ GQSJOUG TUEFSS $BOOPUPQFOOFUXPSLOBNFTQBDFaTaTaO OBNF TUSFSSPS FSSOP SFUVSO ^ JG TFUOT OFUOT $-0/&@/&8/&5 \ GQSJOUG TUEFSS TFUUJOHUIFOFUXPSLOBNFTQBDFaTaGBJMFETaO OBNF TUSFSSPS FSSOP DMPTF OFUOT SFUVSO ^ MJCOBNFTQBDFD

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JG VOTIBSF $-0/&@/&8/4 \ GQSJOUG TUEFSS VOTIBSFGBJMFETaO TUSFSSPS FSSOP SFUVSO ^ %POUMFUBOZNPVOUTQSPQBHBUFCBDLUPUIFQBSFOU JG NPVOU OPOF .4@4-"7&c.4@3&$ /6-- \ GQSJOUG TUEFSS aNPVOUNBLFSTMBWFaGBJMFETaO TUSFSSPS FSSOP SFUVSO ^ MJCOBNFTQBDFD NPVOUOTΛ෼཭͢Δ

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JG NPVOU OBNF TZT TZTGT NPVOUqBHT /6-- \ GQSJOUG TUEFSS NPVOUPGTZTGBJMFETaO TUSFSSPS FSSOP SFUVSO ^ MJCOBNFTQBDFD TZTGTΛϚ΢ϯτ͢Δ͜ͱͰ ࣮࣭ίϯςφԽ

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VOTIBSF OFUOT VOTIBSF NPVOUOT TMBWF SPPUTZTUFN TZT NPVOU JQOFUOTFYFD͸ ίϯςφͰ͋Δ

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VOTIBSF OFUOT VOTIBSF NPVOUOT TMBWF SPPUTZTUFN TZT NPVOU JQOFUOTFYFD͸ ίϯςφͰ͋Δ OFUOTͷ*'ʹ*1௥ՃͷΈ΍Γ͍ͨ ͷͰίϯςφͷػೳ͸͍Βͳ͍

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ίϯςφऑͰϝϞϦރׇ ͭ·ΓɺϦιʔε࢖͍੾Εͨ

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γεςϜௐࠪίϚϯυອஊ

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w HEC5IF(/6%FCVHHFS w TUSBDF5SBDFTZTUFNDBMMTBOETJHOBMT w QFSG1FSGPSNBODFBOBMZTJTUPPMTGPS-JOVY w WBMHSJOEBTVJUFPGUPPMTGPSEFCVHHJOHBOEQSPpMJOHQSPHSBNT

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NSVCZ ͷ"1*ΫϥΠΞϯτ͕ ΊͬͪΌϝϞϦ࢖͏ NSVCZ DMJFOU "1*4FSWFS SFTPVSDFFYBNQMF NSVCZͷ$MJFOU͔Β͋Δ"1*Λ࣮ߦͯ͠ .#ͷϨεϙϯεΛऔಘ͢Δ +40/

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ॠؒతʹ(CZUF͘Β͍ ϝϞϦ͕ར༻͞ΕΔ

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WBMHSJOEͰϝϞϦͷΞϩέʔγϣϯΛݟΔ # valgrind curl http://localhost/resource/example > /dev/null … ==18619== HEAP SUMMARY: ==18619== in use at exit: 0 bytes in 0 blocks ==18619== total heap usage: 1,863 allocs, 1,863 frees, 211,125 bytes allocated # valgrind /home/pyama/mruby test.rb … ==12811== HEAP SUMMARY: ==12811== in use at exit: 0 bytes in 0 blocks ==12811== total heap usage: 51,721 allocs, 51,721 frees, 12,028,345,116 bytes allocated

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ʗ ?P? ʘ(

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TUSBDFͰγεςϜίʔϧͷ౷ܭΛऔΔ # strace -fc /home/pyama/mruby test.rb % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 73.00 0.006317 2 3361 munmap 23.27 0.002014 11 183 brk 2.62 0.000227 0 1734 read 1.11 0.000096 0 3380 mmap 0.00 0.000000 0 3 write 0.00 0.000000 0 16 open 0.00 0.000000 0 23 close NVONBQ͕ࢧ഑త IUUQTMJOVYKNPTEOKQIUNM-%1@NBOQBHFTNBONNBQIUNM

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QFSGΛར༻ͯ͠ίʔϧάϥϑΛऔಘ͢Δ # perf record --call-graph dwarf -- /home/pyama/mruby test.rb # perf report -g -G —stdio 94.35% 0.03% mruby mruby [.] mrb_str_plus | ---mrb_str_plus | --20.06%-- mrb_vm_exec mrb_vm_run … NSC@TUS@QMVT͕ࢧ഑త IUUQNSVCZPSHEPDTBQJIFBEFSTNSVCZ@'TUSJOHIIUNMNSC@TUS@QMVTGVODUJPO

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πʔϧΛར༻ͯ͠ूΊͨ৘ใ͔Β ԾઃΛཱͯΔ w ॲཧ͸)551ϦΫΤετͰϨεϙϯεϘσΟ͸αΠζ͕େ͖͍ w ϝϞϦ(#࢖ͬͯΔΦϫλ w NVONBQ͕ࢧ഑తͰճ਺΋ଟ͍͜ͱ͔ΒɺϝϞϦͷ֬อɺղ์͕  ଟ͍ͷͰ͸ͳ͍͔ʁ w NSC@TUS@QMVT͕ࢧ഑తͰ͋Δ͜ͱ͔Βɺจࣈྻ݁߹͕ଟ͍͜ͱ͕ݪҼʁ NSC@TUS@QMVTSVCZFbDlBzlCz`

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NSVCZTJNQMFIUUQ while (t = socket.read(1024)) if block_given? yield t next end response_text += t end CPEZΛCZUFͣͭಡΈɺ จࣈྻ݁߹͍ͯ͠Δ

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NSVCZTJNQMFIUUQ while (t = socket.read(4096)) if block_given? yield t next end response_text += t end ୯७ʹ͸όοϑΝαΠζΛ֦ு͠ɺ ಡΈࠐΈճ਺ΛݮΒͤ͹ϧʔϓ͸ݮΔ

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NSC@TUS@QMVT MRB_API mrb_value mrb_str_plus(mrb_state *mrb, mrb_value a, mrb_value b) { struct RString *s = mrb_str_ptr(a); struct RString *s2 = mrb_str_ptr(b); struct RString *t; t = str_new(mrb, 0, RSTR_LEN(s) + RSTR_LEN(s2)); memcpy(RSTR_PTR(t), RSTR_PTR(s), RSTR_LEN(s)); memcpy(RSTR_PTR(t) + RSTR_LEN(s), RSTR_PTR(s2), RSTR_LEN(s2)); return mrb_obj_value(t); } ݁߹ޙจࣈྻͷϝϞϦΛ Ξϩέʔτ

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NSC@TUS@QMVT B C BC BC D BCD BCD E BCDE ϧʔϓ໨ όΠτ ϧʔϓ໨ όΠτ ϧʔϓ໨ όΠτ ݁ՌจࣈྻͷྖҬ͸৽ن࡞੒

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NSC@TUS@DBU MRB_API mrb_value mrb_str_cat(mrb_state *mrb, mrb_value str, const char *ptr, size_t len) { struct RString *s = mrb_str_ptr(str); size_t capa; size_t total; ptrdiff_t off = -1; ... resize_capa(mrb, s, capa); memcpy(RSTR_PTR(s) + RSTR_LEN(s), ptr, len); mrb_assert_int_fit(size_t, total, mrb_int, MRB_INT_MAX); RSTR_SET_LEN(s, total); RSTR_PTR(s)[total] = '\0'; /* sentinel */ return str; } ͍ΘΏΔSFBMMPDͰ طଘͷྖҬΛ֦ு͍ͯ͠Δ

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NSC@TUS@DBU B C BC BC D BCD BCD E BCDE ϧʔϓ໨ όΠτ ϧʔϓ໨ όΠτ ϧʔϓ໨ όΠτ ݁ՌจࣈྻͷྖҬ͸ݩจࣈྻΛ֦ு

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NSC@TUS@QMVT TUSJOHlBCz TUSJOHlBz TUSJOHlCz NSC@TUS@DBU TUSJOHlBCz TUSJOHlBz TUSJOHlCz

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ͲΕ͘Β͍͕ࠩ͋Δͷ͔ʁ a = "aaa" b = "bbb" 100000.times do |n| a += b end a = "aaa" b = "bbb" 100000.times do |n| a << b end TVEPWBMHSJOENSVCZOFXSC )&"146.."3: JOVTFBUFYJUCZUFTJOCMPDLT UPUBMIFBQVTBHF CZUFTBMMPDBUFE TVEPWBMHSJOENSVCZDPODBUSC )&"146.."3: JOVTFBUFYJUCZUFTJOCMPDLT UPUBMIFBQVTBHF CZUFTBMMPDBUFE NSC@TUS@QMVT NSC@TUS@DPODBU ສϧʔϓͩͱ ϝϞϦΞϩέʔγϣϯഒ

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ଟ֯తͳௐࠪΛ͠Α͏ wखʹೃછΉπʔϧΛ͍͔ͭ࣋͘ͱ͏ wϓϩάϥϛϯάݴޠ΋ʮ࣮૷ʯ͕͋ΔͳΒ͹ɺݪҼ͸ ɹΘ͔Δ͜ͱ͕Ͱ͖Δ

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w HEC5IF(/6%FCVHHFS w TUSBDF5SBDFTZTUFNDBMMTBOETJHOBMT w QFSG1FSGPSNBODFBOBMZTJTUPPMTGPS-JOVY w WBMHSJOEBTVJUFPGUPPMTGPSEFCVHHJOHBOEQSPpMJOHQSPHSBNT

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ετϨʔδͷເͱల๬

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ʁʁʁʮຊ൪ͷXPSEQSFTTαΠτʹ BC͔͚ͨΒؔ܎ͳ͍αΠτ͕མͪ·ͨ͠ʯ

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ίϯςφͩΑͶʁ w DHSPVQΛར༻ͯ͠$16ɺϝϞϦͱ΋ʹϦιʔε੍ݶঢ়ଶ w Ұͭͷίϯςφͷෛՙ͕γεςϜϫΠυͰӨڹΛٴ΅͢͜ͱ͸ߟ͑ͮΒ͍

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QTFGcHSFQBQBDIFcHSFQ9 OTDE BQBDIF%'03&(306/%9 QFSGSFDPSEDBMMHSBQIEXBSGQ QFSGSFQPSUH(TUEJP BQBDIFJPODVCF@MPBEFS@MJO@TP<>YCGD c YGEGGD c c;&/%@*/$-6%&@03@&7"-@41&$@$0/45@)"/%-&3 cFYFDVUF@FY cYGEGGD cc cc;&/%@*/$-6%&@03@&7"-@41&[email protected]"3@)"/%-&3 ccFYFDVUF@FY ccYGEGGD cc;&/%@*/$-6%&@03@&7"-@41&[email protected]"3@)"/%-&3 ccFYFDVUF@FY ccYGEGGD cc;&/%@*/$-6%&@03@&7"-@41&[email protected]"3@)"/%-&3 ccFYFDVUF@FY "QBDIF)551%͸9Λ͚ͭΔͱ γϯάϧϞʔυͰىಈ͢Δ

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TUSBDFGDQ UJNFTFDPOETVTFDTDBMMDBMMTFSSPSTTZTDBMM PQFO GTUBU SFBE MTUBU SFDWGSPN XSJUF DMPTF TUBU QPMM TUSBDFͰ͸PQFO͕ଟ͍

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TUSBDFGDQ UJNFTFDPOETVTFDTDBMMDBMMTFSSPSTTZTDBMM PQFO MTUBU XSJUFW SFBE XSJUF DMPTF TUBU ͨ·ʹΊͬͪΌ஗͍͕࣌͋Δ IUUQTMJOVYKNPTEOKQIUNM-%1@NBOQBHFTNBOTUBUIUNM

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ͦ΋ͦ΋1)1ͱετϨʔδ͸ ૬ੑ͕ѱ͍ w 1)1͸௨ৗϑΝΠϧΛ౎౓։͍ͯɺίϯύΠϧ࣮ͯ͠ߦ͢Δ w /"4 /'4 ʹ͓͍ͯখ͍͞ϑΝΠϧΛଟ͘։͘ͱ͍͏ͷ͸  ύϑΥʔϚϯεతʹͱͯ΋ۤख

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Զͨͪͷ1)1ʹ͸ 01DBDIF͕͋Δ

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ݴ͏ͯ΋ɺѱҙʹऑ͍ w XIJMFʙpOEʙFYFDͱ͔΍ΒΕΔͱ฼؋ϫΠυͰ཯଎ʹͳΔ w TFDDPNQ #1' Λར༻͢ΔͳͲ੍ݶΛݕ౼ SMJNJUͰ΋͍͍͔΋

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ࠓޙɺQZBNB͕ ΍͍͖͍ͬͯͨ͜ͱ ͕࣌ؒ͋Ε͹࿩͢

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IBDP3%4

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%)BDP

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ֵ৽తεέδϡʔϥ

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·ͱΊ

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ࠓ೔࿩ͨ͜͠ͱͨͪ w ίϯςφͷϘτϧωοΫ͸-JOVYίϚϯυΛۦ࢖ͯ͠ɺݪ Ҽʹ͋ͨΓΛ෇͚ͯɺιʔεΛಡΉͷ͕Ԧಓ w ͦͷγεςϜίʔϧ͕ԿΛ͢Δͷ͔جૅతֶश͕ඞཁ w ίϯςφ͸͋͘·ͰϓϩηεͰ͋Δ

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w TMVCɿTMBCPCKFDUͷ࡞੒ॲཧΛݟ͍ͯ͘ IUUQT LFSOIBDLIBUFOBCMPHDPNFOUSZ w 4ZTUFNEೖ໳ 1SJWBUF5NQͷ࣮૷ΛݟΔ IUUQ FOBLBJIBUFOBCMPHDPNFOUSZ ࢀߟจݙ