Link
Embed
Share
Beginning
This slide
Copy link URL
Copy link URL
Copy iframe embed code
Copy iframe embed code
Copy javascript embed code
Copy javascript embed code
Share
Tweet
Share
Tweet
Slide 1
Slide 1 text
-JOVYͷτϨʔγϯάٕज़Λ $3VCZ͔Βར༻͢Δڥͷඋ 6DIJP,POEP(.01FQBCP *OD !3VCZ"TTPDJBUJPO"DUJWJUZ3FQPSU 1SPHSBNNJOH3C#$$
Slide 2
Slide 2 text
େࣄͳ͓Βͤ
Slide 3
Slide 3 text
3C#$$ຊϦϦʔε 3C#$$ 3VCZͰಈ͖·ͤΜ pEEMF** charܕʹͳ͍ͬͯΔҾʹ ۭจࣈΛ͢ͱɺ0,ɺ4&(7
Slide 4
Slide 4 text
wۙ౻Ӊஐ࿕,POEP6DIJP w(.0ϖύϘٕज़ج൫νʔϜ wຊۀ%VPMJOHPͱ0WFSDPPLFE wझຯ-JOVYɺ$POUBJOFSTɺγεϓϩ w3VCZ,BJHJ
Slide 5
Slide 5 text
ΞδΣϯμ wF#1'ͱ3C#$$ͷհʢdNʣ wຊॿʹΑΔՌͷհʢdNʣ w؆୯ͳ3C#$$ͷϥΠϒίʔσΟϯάʢNdʣ w·ͱΊɺࠓޙʢdNʣ
Slide 6
Slide 6 text
F#1'ͷ
Slide 7
Slide 7 text
F#1'ͱ w#FSLFMFZ1BDLFU'JMUFS wຊདྷɺύέοτϑΟϧλͷͨΊͷΞϧΰϦζϜɾٕज़ͷ໊લ wʹ-JOVYʹҠ২͞ΕɺMJCQDBQͷதͳͲͰར༻ wঃʑʹTFDDPNQɺΧʔωϧΠϕϯττϨʔεʹར༻͞ΕΔ
Slide 8
Slide 8 text
Ͱ͖Δ͜ͱ wF#1'ɺಠࣗͷ໋ྩηοτΛ࣋ͭ7.ͱߟ͑ͯྑ͍ɻ wΧʔωϧͷதͰಈ͍ͯɺߴʹ༷ʑͳͷΛϑΟϧλϦϯά͢Δ wύέοτϑΟϧλʔʢUDQEVNQɺUDɺ9%1ʣ wγεςϜίʔϧͷϑΟϧλʔʢTFDDPNQʣ wΧʔωϧΠϕϯτͷϑΟϧλʔʢ#$$CQGUSBDFʣ wͦͷଞʢDHSPVQͷσόΠεΞΫηε੍ޚͰͬͨΓʣ
Slide 9
Slide 9 text
IUUQXXXCSFOEBOHSFHHDPNCMPHCQGQFSGPSNBODFUPPMTCPPLIUNM
Slide 10
Slide 10 text
#$$ͱʁ wF#1'ͷϓϩάϥϜΛಈ͔͢ʹɺCQG γεςϜίʔϧʹόΠτ ίʔυΛ͢ܗʹͳΔɻόΠτίʔυΛਓ͕ॻ͘ͷ͍͠ wͦ͜Ͱ#1'$PNQJMFS$PMMFDUJPO w$ϕʔεͷҰछͷ%4-ʴεΫϦϓτݴޠʢ1ZUIPOɺ-VBͷϥΠϒϥϦ ΛಉࠝʣͰF#1'ͷπʔϧΛॻ͘͜ͱ͕Ͱ͖Δ
Slide 11
Slide 11 text
طଘٕज़ͱͷҧ͍ wطଘͷτϨʔγϯάٕज़͕͍͔ͭ͋͘Δ wTUSBDF HECQUSBDF ϕʔεͷͷɺҰॠࢭΊͯݕࠪ͢ΔΞʔΩςΫνϟ ͳͷͰɺΦʔόʔϔου͕ແࢹͰ͖ͳ͍ϨϕϧʹͳΔ wQFSGجຊతʹूܭ͕ϢʔβϥϯυͳͷͰɺෛՙʹͳΔ͜ͱ͕͋Δ wTZUFNUBQ GUSBDFF#1'ͱಉͷιʔεΛ͍ΠϕϯτΛऔΔɻͨͩɺ F#1'ͷ࣋ͭόϦσʔγϣϯʹΑΔ҆શੑɺΧʔωϧଆͰͷूܭʹΑΔߴੑ ͳͲϝϦοτ͔
Slide 12
Slide 12 text
ൺֱਤ 5PPMT 3FMBUFETZTDBMMT 4JEF&⒎FDU /PUF gdb strace ptrace(2) େ ରΛҰ࣌తʹࢭΊͯɺ ใΛऔಘ͠࠶։͢Δ perf perf_event_open(2) தʙখ جຊతʹूܭ͔Βઌ Ϣʔβϥϯυ systemtap ftrace (kern module) (tracefs) தʙখ F#1'ΑΓݹΊͷΧʔωϧ Ͱར༻Մೳ bpftrace BCC bpf(2) perf_event_open(2) খ WBMJEBUPSɺ#1'NBQͳͲ ར༻ՄɺݴޠόΠϯσΟϯάଟ
Slide 13
Slide 13 text
طଘٕज़ͱͷҧ͍ wF#1'ΧʔωϧͰϓϩάϥϜΛಈ͔͢Έ wΧʔωϧͰϓϩάϥϜΛಈ͔͢ͱ͍͏ҙຯͰૉʹϞδϡʔϧΛॻ ͘͜ͱͰ͖Δ wΧʔωϧϞδϡʔϧવɺඇৗʹଟ͘ͷ͜ͱ͕Մೳ͕ͩɺόά ةݥͳίʔυ࣮ߦՄೳͰɺΧʔωϧύχοΫͷڪΕ͕͋Δ wF#1'ͷ࣮ߦػߏʹWFSJpFS͕ଘࡏ͠ɺةݥͳίʔυΛݕ͢Δ ʢFHແݶϧʔϓʣ
Slide 14
Slide 14 text
IUUQXXXCSFOEBOHSFHHDPNCMPHCQGBOFXUZQFPGTPGUXBSFIUNM
Slide 15
Slide 15 text
F#1'ࣗମͷઆ໌ࢿྉʢࢀߟʣ wIUUQTTQFBLFSEFDLDPNDIJLVXBJUMFBSOFCQG
Slide 16
Slide 16 text
Ϟνϕʔγϣϯ
Slide 17
Slide 17 text
#$$ͱʢ࠶ܝʣ wF#1'ͷϓϩάϥϜΛಈ͔͢ʹɺCQG γεςϜίʔϧʹόΠτ ίʔυΛ͢ܗʹͳΔɻόΠτίʔυΛਓ͕ॻ͘ͷ͍͠ wͦ͜Ͱ#1'$PNQJMFS$PMMFDUJPO w$ϕʔεͷҰछͷ%4-ʴεΫϦϓτݴޠʢ1ZUIPOɺ-VBͷϥΠϒϥϦ ΛಉࠝʣͰF#1'ͷπʔϧΛॻ͘͜ͱ͕Ͱ͖Δ
Slide 18
Slide 18 text
͑ͬ3VCZ
Slide 19
Slide 19 text
ॻ͔͘͠ͳ͍ ʢ͍ͭͰʹษڧ͠Α͏ʣ
Slide 20
Slide 20 text
F#1'Y3VCZͷϞνϕʔγϣϯ w3VCZΛಈ͔͢04ͱͯ͠ॏཁͳɺ-JOVYͷਐԽͷԸܙΛɺ3VCZ։ൃऀ ʢݴޠίΞ։ൃऀɺϢʔβ྆ํʣ͕ڗडͰ͖ΔΑ͏ʹ͍ͨ͠ w3C#$$Ͱɺ3VCZίΞ։ൃऀͷڞ௨ݴޠͰ͋Δ$ݴޠͱ3VCZͷ ͚ࣝͩͰෳࡶͳτϨʔγϯά͕Ͱ͖ΔΑ͏ʹͳΔ w%4-ͷΑ͏ͳΈͱΈ߹ΘͤΔ͜ͱͰɺτϨʔγϯάΛͬͱ &OKPZBCMFͳͷʹͰ͖ͳ͍͔
Slide 21
Slide 21 text
Ռ
Slide 22
Slide 22 text
ୡͨ͜͠ͱ w#$$ͷ1ZUIPO࣮Λ࣮༻ʹेͳػೳʹ͍ͭͯ3VCZʹҠ২ͨ͠ wαϯϓϧϓϩάϥϜɺԿΑΓνϡʔτϦΞϧΛ࡞ͨ͠ wຊޠ൛νϡʔτϦΞϧؚΉ w3C#$$Λར༻ͨ͠1P$Ϩϕϧͷ࣮ྫɾπʔϧΛ։ൃ
Slide 23
Slide 23 text
#$$3C#$$ w#$$ جຊతʹ MJCCDDͷ''*
Slide 24
Slide 24 text
#$$3C#$$ w3VCZඪ४ͷ pEEMFͰ 1ZUIPOͷ DUZQFTΛஔ
Slide 25
Slide 25 text
pEEMFͷར༻ w3C#$$3VCZͷඪ४ϥΠϒϥϦͷΈͰಈ࡞͢Δ ʢͪΖΜMJCCDDTP͕ೖ͍ͬͯΔલఏͰ͋Δɻϔομෆཁʣ
Slide 26
Slide 26 text
1ZUIPO൛ͷϦϑΝϨϯεʹ͋Δؔཏ
Slide 27
Slide 27 text
αϯϓϧ͍͔ͭ͘ɺνϡʔτϦΞϧ
Slide 28
Slide 28 text
ຊޠνϡʔτϦΞϧ
Slide 29
Slide 29 text
1ZUIPO൛ͱͷൺֱ wఏग़ͨ͠࠷ऴใࠂΛ͝ཡ͍ͩ͘͞
Slide 30
Slide 30 text
։ൃͨ͠πʔϧ#1'2- wCQGUSBDFͷ͋ͷݴޠͰͳ͘:".-3VCZͰτϨʔεͰ͖ΔίϚϯυ CQGUSBDF #1'2-3VCZ%4-
Slide 31
Slide 31 text
ಈը
Slide 32
Slide 32 text
։ൃͨ͠πʔϧ3BDL' w64%5ʢޙड़ʣΛར༻͠ɺ3BDL.JEEMFXBSFʹ1SPCFΛࠐΈܭଌ ूܭ͢Δαϯϓϧ
Slide 33
Slide 33 text
3BDL'ͷಈ࡞ݪཧ w੍ݶεϨουʹϦΫΤετͱ͍͏લఏ͕͋Δ
Slide 34
Slide 34 text
ಈը
Slide 35
Slide 35 text
3C#$$ͷ ར༻ʹ͋ͨͬͯ
Slide 36
Slide 36 text
ϙΠϯτ͍͔ͭ͘ wΠϕϯτιʔεͰओཁͳͷͭ͋Δɺ͓ͬͯ͘ wLQSPCFɺUSBDFQPJOUɺVQSPCFɺ64%5 wΠϯετʔϧखॱͳͲ(FUUJOH4UBSUFEͰ6CVOUVָ͕ wMJCCDDͷόʔδϣϯɹਪ0, wιϑτΣΞͷੑ্࣭ɺ୯७ʹ%PDLFSԽͮ͠Β͍ w݁ہΓ͍ͨͷϗετ͕Ͳ͏ͳͬͯΔ͔ͩͬͨΓ͢ΔΜͰ
Slide 37
Slide 37 text
LQSPCFLSFUQSPCF wΧʔωϧ෦ͷؔΛѻ͏QSPCFɻ wόʔδϣϯͰΠϯλϑΣʔε͕มΘΔ͔͠Εͳ͍ɻ wLQSPCF͕ؔΤϯλʔ࣌ɺLSFUQSPCF͕Ϧλʔϯ࣌ wͲͷΑ͏ͳLQSPCF͕ԿʹΘΕ͍ͯΔ͔αϯϓϧͰษڧ
Slide 38
Slide 38 text
USBDFQPJOU w3VCZͷ5SBDF1PJOUͱҧ͏֓೦Ͱɺ-JOVYͷQSPCFͷ͜ͱ wΧʔωϧʹ੩తʹΈࠐ·Εɺ໊લҾجຊతʹมΘΒͳ͍ wυΩϡϝϯτ͕ίϝϯτʹ͋Δ߹͋Δ wαϯϓϧͰͷΘΕํΛݟΔ΄͏͕ૣ͍͜ͱ͕ଟ͍ wྫ wTZTDBMMTTZT@FOUFS@cTZT@FYJU@γεςϜίʔϧͷ͍͔͚ wSBOEPNVSBOEPN@SFBEVSBOEPNͷಡΈऔΓ wTDIFETDIFE@QSPDFTT@FYJUϓϩηεͷऴྃͳͲ
Slide 39
Slide 39 text
VQSPCFVSFUQSPCF wϢʔβϓϩάϥϜͷؔͳͲʹϑοΫͨ͠ΠϕϯτΛɺΧʔωϧͰ ͍͔͚ΒΕΔػೳɻ wجຊతʹFYQPSU͞ΕͯΔγϯϘϧΛQSPCF͢Δ wͪ͜ΒVQSPCF͕ΤϯλʔɺVSFUQSPCF͕Ϧλʔϯ
Slide 40
Slide 40 text
64%5 wϢʔβϓϩάϥϜͷҙͷՕॴʹQSPCFΛຒΊࠐΉػೳɻ wͲ͜ʹຒΊࠐ·Ε͍ͯΔ͔&-'ϔομͰ֬ೝͰ͖Δɻ wτϨʔε༗ޮ࣌ʹॳΊͯτϨʔε໋ྩ͕ಈ࡞͠ɺීஈOPQ໋ྩʹ ͳ͍ͬͯΔɻ͕ͨͬͯ͠ແޮ࣌Φʔόϔου͕ͳ͍ɻ
Slide 41
Slide 41 text
3VCZͷ64%5 w--enable-dtraceΦϓγϣϯΛ༗ޮʹͯ͠Ϗϧυ͢Ε༗ޮʹ wSCFOWͳΒɺ36#:@$0/'*(63&@0154ڥมͰࢦఆ wԿ͕ຒ·͍ͬͯΔ͔%5SBDFଆͷυΩϡϝϯτΛࢀর wTFFʮ3VCZͷ%5SBDFͷհʯ w IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT4QFDJBMEUSBDFIUNM w 8JLJIUUQTCVHTSVCZMBOHPSHQSPKFDUTSVCZXJLJ%5SBDF1SPCFT
Slide 42
Slide 42 text
3VCZͷ64%5
Slide 43
Slide 43 text
ϥΠϒͰͷ πʔϧ࡞σϞ
Slide 44
Slide 44 text
Ͳ͏ʂ VE[VSBͰ͢
Slide 45
Slide 45 text
ࠓޙͷల ʢ͕࣌ؒ͋Εʣ
Slide 46
Slide 46 text
3FE%BUB5PPMT࿈ܞ w۩ମతʹɺ$IBSUZͷσʔλߏʹɺ3C#$$ʹ͓͚Δ#1'NBQΛ දݱͨ͠ΫϥεΛରԠ͍ͤͨ͞ w$IBSUZ5BCMF"EBQUFST#$$తͳΞμϓλΛ࣮͢ΔͱΑ͍ w$IBSUZͷࢿ࢈Λͦͷ··ͬͯʢFHVOJDPEF@QMPUSCʣ τϨʔε݁ՌͷՄࢹԽ͕Ͱ͖Δ
Slide 47
Slide 47 text
ωοτϫʔΫτϨʔεपล wຊՈͷFYBNQMFTOFUXPSLJOHԼʹ͋ΔΑ͏ͳαϯϓϧͷҠ২ wগ͚ͩ͠։͍࢝ͯ͠Δ w9%1ྲྀߦͬͯΔͷͰ wطͷQZSPVUF૬ͷHFN͕3VCZʹͳ͍ͷͰɺҰ෦ͷαϯ ϓϧ؆୯ͳҠ২ͱ͍͏Θ͚ʹ͍͔ͣ·͍͠ɻ wOFUMJOLTPDLFUͱ͓͠ΌΓ͢ΔHFN͕ཉ͍͠ɻ
Slide 48
Slide 48 text
ͬͱকདྷVQTUSFBNͷߩݙ wকདྷJPWJTPSϓϩδΣΫτʹدଃ͠ɺ #$$։ൃίΞͱาௐΛ߹ΘͤΔͳͲ͍ͨ͠ wͦͷલʹ࣭Λ্͍͛ͨʢݴ͍༁ʣ wͲ͏͍͏खଓ͖ΛͱΕ͍͍ͷͩΖ͏ʁ w͜ͷࢿྉΛݟͨํͰॿݴ͕͋Εͱࢥ͍·͢
Slide 49
Slide 49 text
ँࣙ
Slide 50
Slide 50 text
ँࣙ wϝϯλʔͷాߞҰ͞Μ w͘͞ΒΠϯλʔωοτͷদຊ྄հ͞Μɺभେֶใج൫ݚڀ։ൃ ηϯλʔͷౢ٢ོઌੜɺּݪٛߊઌੜ wಛʹɺ#1'2-ౢ٢ઌੜͷΞυόΠεΛԼෑ͖ʹ͍ͯ͠·͢
Slide 51
Slide 51 text
&OKPZ 5SBDJOH