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ۙ౻͏͓ͪ,FSOFM7.୳ݕୂPOMJOFQBSU!
#$$Λ3VCZͰ
͑ΔΑ͏ʹͨ͠
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GMOϖύϘ ΤϯδχΞ
ۙ౻ Ӊஐ࿕ / @udzura
Uchio Kondo
ٕज़෦ ٕज़ج൫νʔϜ
* Ruby, Containers, eBPF Novice
* Author of Haconiwa
(a container runtime built upon mruby)
* Duolingo 363 Days Streaker
* Animal Crossing Blue Rose Grower
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F#1'
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FYUFOEFE#FSLFMFZ1BDLFU'JMUFS
w໊લͷ௨ΓͱͱύέοτϑΟϧλϦϯάʹར༻ʢD#1'ʣ
wΧʔωϧ෦ͰύέοτΛϑΟϧλͯ͠ޮΑ͘
w-JOVYͰύέοτҎ֎ͷϑΟϧλϦϯάʹ༻͍ΒΕΔΑ͏ʹͳͬͨ
wTFDDPNQNPEFʢ-JOVYʙʣγεςϜίʔϧͷϑΟϧλ
w-JOVY͔ΒΑΓ൚༻తʹ͑ΔΑ͏ʹʹF#1'
wݱࡏɺύέοτɺγεςϜίʔϧɺΧʔωϧτϨʔγϯάͳͲ
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IUUQXXXCSFOEBOHSFHHDPNCMPHCQGQFSGPSNBODFUPPMTCPPLIUNM
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IUUQXXXCSFOEBOHSFHHDPNCMPHCQGBOFXUZQFPGTPGUXBSFIUNM
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5PPMT 3FMBUFETZTDBMMT 4JEF&⒎FDU
gdb
strace
ptrace(2) େ
perf perf_event_open(2) தʙখ
bpftrace
BCC
bpf(2)
perf_event_open(2)
খ
طଘͷπʔϧͱͷൺֱ
˞ൃද࣌ΑΓิGUSBDF
TZTUFNUBQͳͲ͋Γ·͢
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#$$
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#1'$PNQJMFS$PMMFDUJPO
wF#1'ͰΧʔωϧτϨʔγϯάωοτϫʔΫϑΟϧλʔͷͨΊͷ
ϓϩάϥϜΛޮΑ͘࡞ΔͨΊͷπʔϧΩοτ
wʴ#$$Λͬͨ؆୯ͳτϨʔεπʔϧ܈
wCQG
γεςϜίʔϧʹجຊόΠτίʔυ͔ͤ͠ͳ͍ͨΊ
wJPWJTPSϓϩδΣΫτͰ։ൃத
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1ZUIPO
-VB
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3VCZͰ
͑ͳ͍͔ͳʁ
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1ZUIPOͷίʔυ
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3VCZͷίʔυ
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#$$3VOOJOH%FNP
1ZUIPOc3VCZ
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Ͳ͜·Ͱ͑Δͷʁ
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#1'2-
w˞USBDFQPJOUͷΈ
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ͪͳΈʹ
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νϡʔτϦΞϧͷ3VCZ൛͕͋Γ·͢
w1ZUIPO൛ʹͳ͍ຊޠ൛
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ࠓ͙͢ʂ
gem install rbbcc
# libbcc ΛͲ͏ʹ͔͜͏ʹ͔Πϯετʔϧͨ͠ޙͰ
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ࢀߟ
wʮF#1'ͷհʯ
wIUUQTRJJUBDPNTHNBUTVNPUPJUFNTECEEGB
wʮ#FSLFMFZ1BDLFU'JMUFSʢ#1'ʣೖʯγϦʔζ
wIUUQTXXXBUNBSLJUDPKQBJUTFSJFT
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ँࣙ
w3VCZΞιγΤʔγϣϯͷօ༷
w3VCZΞιγΤʔγϣϯ։ൃॿϓϩδΣΫτͰ͢ɻ
wాߞҰ͞Μɺদຊ྄հ͞Μ͡ΊΞυόΠεΛͩͬͨ͘͞օ༷
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13
wIUUQTSVCZBTTPDJBUJPOEPPSLFFQFSKQFWFOUT