BCC(BPF Compiler Collection) for Ruby

BCCをRubyから使えるようにした話

@ Kernel/VM探検隊online #1
https://connpass.com/event/175388/

demo: https://www.youtube.com/watch?v=xNUN9vdgASI

Transcript

1. ۙ౻͏͓ͪ
   
   ,FSOFM7.୳ݕୂPOMJOF
   QBSU
   !
    #$$Λ3VCZͰ
 ࢖͑ΔΑ͏ʹͨ͠࿩
2. 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
3. F#1'
4. FYUFOEFE
   #FSLFMFZ
   1BDLFU
   'JMUFS w໊લͷ௨Γ΋ͱ΋ͱύέοτϑΟϧλϦϯάʹར༻ʢD#1'ʣ
   wΧʔωϧ಺෦ͰύέοτΛϑΟϧλͯ͠ޮ཰Α͘
   w-JOVYͰύέοτҎ֎ͷϑΟϧλϦϯάʹ΋༻͍ΒΕΔΑ͏ʹͳͬͨ
   wTFDDPNQ
   NPEF
   ʢ-JOVY
   ʙʣγεςϜίʔϧͷϑΟϧλ
   w-JOVY
   ͔ΒΑΓ൚༻తʹ࢖͑ΔΑ͏ʹʹF#1'
   wݱࡏɺύέοτɺγεςϜίʔϧɺΧʔωϧτϨʔγϯάͳͲ
5. IUUQXXXCSFOEBOHSFHHDPNCMPHCQGQFSGPSNBODFUPPMTCPPLIUNM
   
6. IUUQXXXCSFOEBOHSFHHDPNCMPHCQGBOFXUZQFPGTPGUXBSFIUNM
   
8. 5PPMT 3FMBUFE
   TZTDBMMT 4JEF
   &⒎FDU gdb strace ptrace(2) େ perf perf_event_open(2) தʙখ bpftrace BCC bpf(2) perf_event_open(2) খ طଘͷπʔϧͱͷൺֱ ˞ൃද࣌ΑΓิ଍
   GUSBDF
   TZTUFNUBQ
   ͳͲ΋͋Γ·͢
9. #$$
   
10. #1'
    $PNQJMFS
    $PMMFDUJPO wF#1'ͰΧʔωϧτϨʔγϯά΍ωοτϫʔΫϑΟϧλʔͷͨΊͷ
 ϓϩάϥϜΛޮ཰Α͘࡞ΔͨΊͷπʔϧΩοτ
    wʴ
    #$$Λ࢖ͬͨ؆୯ͳτϨʔεπʔϧ܈
    wCQG 
    γεςϜίʔϧʹ͸جຊόΠτίʔυ͔͠౉ͤͳ͍ͨΊ
    wJPWJTPS
    ϓϩδΣΫτͰ։ൃத
12. 1ZUIPO
    -VB
13. 3VCZ
    Ͱ΋
    ࢖͑ͳ͍͔ͳʁ
16. 1ZUIPOͷίʔυ 
17. 3VCZͷίʔυ 
18. #$$
    3VOOJOH
    %FNP
    1ZUIPO
    c
    3VCZ
19. Ͳ͜·Ͱ࢖͑Δͷʁ
21. #1'2- w˞
    USBDFQPJOU
    ͷΈ
22. ͪͳΈʹ
23. νϡʔτϦΞϧͷ3VCZ൛͕͋Γ·͢ w1ZUIPO൛ʹͳ͍೔ຊޠ൛΋
24. ࠓ͙͢ʂ gem install rbbcc # libbcc ΛͲ͏ʹ͔͜͏ʹ͔Πϯετʔϧͨ͠ޙͰ
25. ࢀߟ wʮF#1'
    ͷ঺հʯ
    wIUUQTRJJUBDPNTHNBUTVNPUPJUFNTECEEGB
    
    wʮ#FSLFMFZ
    1BDLFU
    'JMUFSʢ#1'ʣೖ໳ʯγϦʔζ
    wIUUQTXXXBUNBSLJUDPKQBJUTFSJFT
26. ँࣙ w3VCZΞιγΤʔγϣϯͷօ༷
    w೥౓3VCZΞιγΤʔγϣϯ։ൃॿ੒ϓϩδΣΫτͰ͢ɻ
    w࡫ాߞҰ͞Μɺদຊ྄հ͞Μ͸͡ΊΞυόΠεΛͩͬͨ͘͞օ༷
27. 13 wIUUQTSVCZBTTPDJBUJPOEPPSLFFQFSKQFWFOUT