Just-In-Time Compiler for MRI

+VTU*O5JNF$PNQJMFSGPS.3* 5BLBTIJ,PLVCVO5SFBTVSF%BUB*OD /PWFNCFSUI 3VCZ$POG

5SFBTVSF%BUB*OD 3VCZ$PNNJUUFSTJODF.BZ !LLVCVO

IUUQTUSBWJTDJPSHLLVCVOIBNMJUKPCT *NBEFYGBTUFS)BNMJNQMFNFOUBUJPO)BNMJU

IUUQTUSBWJTDJPSHLLVCVOIBNMJUKPCT *NBEFPSJHJOBM)BNMYGBTUFS

DPNQJMFEDPEF`TSFOEFSJOHUJNFTQFSTFDPOE OP)5.-FTDBQF 3FOEFSJOHUJNFTQFSTFDPOE JT ERB
Ruby 2.5.0 Erubis 2.7.0 Ruby 2.5.0 Erubi 1.7.0 Ruby 2.5.0 ERB Ruby 2.4.2 IUUQTHJTUHJUIVCDPNLLVCVOFEEDDCEFGDGBDEGGE *NBEF&3#YGBTUFS

*MPWFGBTUUIJOHT BOENBLJOHUIJOHTGBTUFS

*MPWF3VCZMBOHVBHF

*GXFDBONBLF3VCZFWFOGBTUFS JUXPVMECFHSFBU SJHIU

*U`TUJNFUPJOUSPEVDF+*5DPNQJMFSz

5PEBZ*`MMUFMMZPVIPX*BDIJFWFEUIJTXJUIJU 0QUDBSSPUXJUI[email protected] GQT Ruby 2.0
Ruby 2.5 YARV-MJIT IUUQTHJUIVCDPNLLVCVOZBSWNKJUPQUDBSSPUCFODINBSL

8IBU`T+*5DPNQJMFS

8IBU`T+*5DPNQJMFS w +*5+VTU*O5JNF w +*5DPNQJMFSPQUJNJ[FTBQSPHSBNCZDPNQJMJOHJUUPlOBUJWFDPEFz EVSJOHFYFDVUJPOPGUIFQSPHSBN w 8BJU XIBU /BUJWFDPEF
*TO`U3VCZOBUJWFOPX

)PXDVSSFOU.3*XPSLT EFGSVCZ FOE 3VCZDPEF

)PXDVSSFOU.3*XPSLT EFGSVCZ FOE 3VCZDPEF "CTUSBDU 4ZOUBY5SFF /0%&@$"-- NFUIPE
SFDFJWFS BSHT 1BSTF

)PXDVSSFOU.3*XPSLT EFGSVCZ FOE 3VCZDPEF "CTUSBDU 4ZOUBY5SFF /0%&@$"-- NFUIPE
SFDFJWFS BSHT 1BSTF QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF #ZUFDPEF GPS3VCZ7. $PNQJMF

)PXDVSSFOU.3*XPSLT QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF #ZUFDPEF GPS3VCZ7. 3VCZ7. 4UBDL 1SPHSBN$PVOUFS

)PXDVSSFOU.3*XPSLT QVUPCKFDU PQU@NVMU MFBWF #ZUFDPEF GPS3VCZ7. 3VCZ7. 4UBDL 1SPHSBN$PVOUFS

)PXDVSSFOU.3*XPSLT PQU@NVMU MFBWF #ZUFDPEF GPS3VCZ7. 3VCZ7. 4UBDL 1SPHSBN$PVOUFS

)PXDVSSFOU.3*XPSLT MFBWF #ZUFDPEF GPS3VCZ7. 3VCZ7. 4UBDL 1SPHSBN$PVOUFS

)PXDVSSFOU.3*XPSLT MFBWF #ZUFDPEF GPS3VCZ7. 3VCZ7.WN@FYFD 4UBDL 1SPHSBN$PVOUFS SFUVSO

)PXEPFT+*5XPSL #ZUFDPEF GPS3VCZ7. QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF 5ISFBE 3VCZ7. 5ISFBE
+*5DPNQJMFS $BMMDPVOU

#ZUFDPEF GPS3VCZ7. QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF 5ISFBE 3VCZ7. 5ISFBE +*5DPNQJMFS
$BMMDPVOU )PXEPFT+*5XPSL *OUFSQSFU

$BMMDPVOU $IFDL )PXEPFT+*5XPSL *OUFSQSFU

$BMMDPVOU /BUJWFDPEF 0QUJNJ[F )PXEPFT+*5XPSL *OUFSQSFU

$BMMDPVOU /BUJWFDPEF $BMM 0QUJNJ[F )PXEPFT+*5XPSL *OUFSQSFU

w #ZUFDPEFJTJOUFSQSFUFEOPOOBUJWFDPEFGPS3VCZ w "GUFS+*5HFOFSBUFTOBUJWFDPEFGSPNUIFCZUFDPEF 3VCZ7.TUBSUT UPDBMMOBUJWFDPEFJOTUFBEPGJOUFSQSFUJOHCZUFDPEF )PXEPFT+*5XPSL

8IZ+*5GPS3VCZ

'JSTUPGBMM EPFT3VCZOFFEUPCFGBTUFS 3VCZJTGBTUFOPVHIGPSNBOZVTFDBTFT CVUJUTIPVMECFGBTUFS w 'PSNPOFZ w 5IFGBTUFS3VCZJT UIFGFXFSDPNQVUFSFTPVSDFTBSFSFRVJSFE

'JSTUPGBMM EPFT3VCZOFFEUPCFGBTUFS 3VCZJTGBTUFOPVHIGPSNBOZVTFDBTFT CVUJUTIPVMECFGBTUFS w 'PSNPOFZ w 5IFGBTUFS3VCZJT UIFGFXFSDPNQVUFSFTPVSDFTBSFSFRVJSFE w
'PSFOEVTFSFYQFSJFODF w FH'BTUXFCBQQMJDBUJPOJTDPNGPSUBCMFUPVTF

'JSTUPGBMM EPFT3VCZOFFEUPCFGBTUFS 3VCZJTGBTUFOPVHIGPSNBOZVTFDBTFT CVUJUTIPVMECFGBTUFS w 'PSNPOFZ w 5IFGBTUFS3VCZJT UIFGFXFSDPNQVUFSFTPVSDFTBSFSFRVJSFE w
'PSFOEVTFSFYQFSJFODF w FH'BTUXFCBQQMJDBUJPOJTDPNGPSUBCMFUPVTF w 5PBMXBZTVTF3VCZ❤ w /PMPOHFSOFFEUPDIPPTFBOPUIFSMBOHVBHFEVFUPQFSGPSNBODF

0LBZ UIFOXIZ+*5GPS3VCZQFSGPSNBODF w +*5+VTU*O5JNF"05"IFBE0G5JNF w "05DPNQJMFTQSPHSBNUPOBUJWFDPEFCFGPSFJUTFYFDVUJPO w 8IZOPU"05CVU+*5 w
5PLFFQCPPUUJNFTIPSU DPNQJMBUJPOTIPVMECFGVMMZBTZODISPOPVT w 4PNFPQUJNJ[BUJPOTOFFESVOUJNFJOGPSNBUJPO FYQMBJOFEMBUFS

0LBZ UIFOXIZ+*5GPS3VCZQFSGPSNBODF w 5IFSFBSFTPNFNFUIPE+*5DPNQJMFSJNQMFNFOUBUJPOTGPS.3* w ,JOEPGXPSLJOH w "DIJFWFECFUUFSQFSGPSNBODF

1FSGPSNBODFPGTPNF+*5DPNQJMFSJNQMFNFOUBUJPOT 0QUDBSSPUXJUI[email protected] GQT Ruby 2.0
Ruby 2.5 YARV-MJIT MJIT IUUQTHJUIVCDPNLLVCVOZBSWNKJUPQUDBSSPUCFODINBSL

)PXEPFT+*5NBLF3VCZGBTUFS

JNQMFNFOUBUJPOTPGNFUIPE+*5DPNQJMFS w --3#--7.CBTFENFUIPE+*5DPNQJMFS w .+*5.3*NFUIPE+*5DPNQJMFSCBTFEPO35-JOTUSVDUJPOT w :"37.+*5.3*NFUIPE+*5DPNQJMFSCBTFEPO:"37JOTUSVDUJPOT

--3# IUUQTHJUIVCDPNLLVCVOMMSC

%PZPVLOPX UIF3VCZ,BJHJ,FZOPUF

w$POWFSU3VCZDPSFMJCSBSZUP--7.CJUDPEFVTJOH$MBOH w(FOFSBUF--7.*3GSPN:"37CZUFDPEF w"MMPX--7.UPPQUJNJ[FUIFNUPHFUIFS l-JGUUIF$PSFz

*NBEFJUQPTTJCMFXJUI--3#

#ZUFDPEF QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF 5ISFBE 3VCZ7. )PX--3#XPSLT *OUFSQSFU .3*`T
QSFDPNQJMFE --7.*3

#ZUFDPEF QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF 5ISFBE 3VCZ7. )PX--3#XPSLT *OUFSQSFU .3*`T
QSFDPNQJMFE --7.CJUDPEF

#ZUFDPEF QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF 5ISFBE 3VCZ7. )PX--3#XPSLT *OUFSQSFU .FUIPE`T
--7.*3 $PNQJMF .3*`T QSFDPNQJMFE --7.CJUDPEF

--7.*3 $PNQJMF $PNCJOFE --7.*3 -JOL*3 .3*`T QSFDPNQJMFE --7.CJUDPEF

--7.*3 $PNQJMF /BUJWF$PEF $PNCJOFE --7.*3 -JOL*3 0QUJNJ[BUJPO CZ--7.1BTT $PEFHFO .3*`T QSFDPNQJMFE --7.CJUDPEF

--7.*3 $PNQJMF .3*`T QSFDPNQJMFE --7.CJUDPEF /BUJWF$PEF $PNCJOFE --7.*3 -JOL*3 $PEFHFO $BMM 0QUJNJ[BUJPO CZ--7.1BTT

)PXJTJUTQFSGPSNBODF

-FU`TCFODINBSL CN@MPPQ@XIJMFMPPQ

8IZJTJUGBTU

"CPVU--7.1BTT w l--7.1BTTzJTBGSBNFXPSLUPBOBMZ[FPSPQUJNJ[F--7.*3 w $PNQJMFSPQUJNJ[BUJPOPG$MBOH--7.JTEPOFJO--7.1BTT

--3#`T1BTTQJQFMJOF w .BKPS1BTTFTUIBUB⒎FDU--3#`TPQUJNJ[BUJPOTUBUT 1BTTFT w5ZQF#BTFE""8SBQQFS1BTT w(MPCBMT""8SBQQFS1BTT w'VODUJPO*OMJOJOH1BTT w&BSMZ$4&1BTT w+VNQ5ISFBEJOH1BTT w$'(4JNQMJpDBUJPO1BTT
w*OTUSVDUJPO$PNCJOJOH1BTT w3FBTTPDJBUF1BTT w-*$.1BTT w-PPQ6OTXJUDI1BTT w*OTUSVDUJPO$PNCJOJOH1BTT w*OE7BS4JNQMJGZ1BTT w(7/1BTT w.FN$QZ0QU1BTT w%FBE4UPSF&MJNJOBUJPO1BTT w-*$.1BTT w$'(4JNQMJpDBUJPO1BTT w*OTUSVDUJPO$PNCJOJOH1BTT w3FWFSTF1PTU0SEFS'VODUJPO"UUST1BTT w(MPCBMT""8SBQQFS1BTT w-PPQ7FDUPSJ[F1BTT w*OTUSVDUJPO$PNCJOJOH1BTT w-PPQ6OSPMM1BTT w*OTUSVDUJPO$PNCJOJOH1BTT w-*$.1BTT

8IJDI--7.1BTTJTJNQPSUBOU w *DPVMESFQSPEVDFUIFTBNFQFSGPSNBODFXJUIPOMZ1BTTFT w -FU`TTFFIPXUIFZDPOUSJCVUFUPQFSGPSNBODF

4VNNBSZPG--3#`TPQUJNJ[BUJPOqPX 3VCZCZUFDPEF /BUJWFDPEF Y8JUICZUFDPEFJOUFSQSFUFS :"37 Y0QUJNJ[FEOBUJWFDPEF`T$GVODUJPO #FODINBSLFEPO8FSDLFSJOIUUQTHJUIVCDPNLLVCVOMMSCQVMM

4VNNBSZPG--3#`TPQUJNJ[BUJPOqPX 3VCZCZUFDPEF --3#$PNQJMFS /BUJWFDPEF Y8JUICZUFDPEFJOUFSQSFUFS :"37 Y0QUJNJ[FEOBUJWFDPEF`T$GVODUJPO #FODINBSLFEPO8FSDLFSJOIUUQTHJUIVCDPNLLVCVOMMSCQVMM Y+*5DPNQJMBUJPOXJUIPVUPQUJNJ[BUJPO

4VNNBSZPG--3#`TPQUJNJ[BUJPOqPX 3VCZCZUFDPEF --3#$PNQJMFS 'VODUJPO*OMJOJOH1BTT /BUJWFDPEF Y8JUICZUFDPEFJOUFSQSFUFS :"37 Y0QUJNJ[FEOBUJWFDPEF`T$GVODUJPO #FODINBSLFEPO8FSDLFSJOIUUQTHJUIVCDPNLLVCVOMMSCQVMM Y+*5DPNQJMBUJPOXJUIPVUPQUJNJ[BUJPO
Y*OMJOFGVODUJPOT

4VNNBSZPG--3#`TPQUJNJ[BUJPOqPX 3VCZCZUFDPEF --3#$PNQJMFS 'VODUJPO*OMJOJOH1BTT -*$.1BTT /BUJWFDPEF Y8JUICZUFDPEFJOUFSQSFUFS :"37 Y0QUJNJ[FEOBUJWFDPEF`T$GVODUJPO #FODINBSLFEPO8FSDLFSJOIUUQTHJUIVCDPNLLVCVOMMSCQVMM
Y+*5DPNQJMBUJPOXJUIPVUPQUJNJ[BUJPO Y*OMJOFGVODUJPOT Y3FNPWFMPPQJOWBSJBOUDPEFGSPNMPPQ

4VNNBSZPG--3#`TPQUJNJ[BUJPOqPX w *OMJOJOH'VODUJPOIBTNBKPSJNQBDU w "TDIBOHJOH$PEF(FO-FWFMB⒎FDUFEJUTJNQBDU BDUVBMMZDPEF HFOFSBUPSTFFNTUPEPPQUJNJ[BUJPOPOJOMJOFEDPEF w -*$. -PPQ*OWBSJBOU$PEF.PUJPO
JTBMTPHPPE

-FBSOJOHTGSPN--3# w *OUIJTBQQSPBDI UIFSFXBTOPQFSGPSNBODFCFOFpUJODPOTUSVDUJOH --7.*3CZPVSTFMWFT w .BJOPQUJNJ[BUJPOUBSHFUJT3VCZDPSFQSFDPNQJMFECZ$MBOH w ,FFQJOHVQXJUI--7.`TCSFBLJOHDIBOHFJTIBSE w
%FCVHHJOHOBUJWFDPEFDPNQJMFEGSPN--7.*3TFFNFEIBSE

.+*5 IUUQTHJUIVCDPNWONBLBSPWSVCZ

8IBU`T.+*5 w %FWFMPQFECZ7MBEJNJS.BLBSPW w .+*5QSPKFDUDPOTJTUTPGDPNQPOFOUT w 7.JOTUSVDUJPOTSFQMBDFNFOU w .FUIPE+*5DPNQJMFS

7.JOTUSVDUJPOTSFQMBDFNFOU w :"37 4UBDLCBTFE 35- 3FHJTUFSCBTFE w %ZOBNJDCZUFDPEFTQFDJBMJ[BUJPO w
*UTQFDVMBUJWFMZTQFDJBMJ[FTJOTUSVDUJPOGPSTQFDJpDDMBTT w FHJOETFU <> BJOETFU "SSBZ<> BJOETFUJ "SSBZ<> *OUFHFS

.FUIPE+*5DPNQJMFS w #BTFEPO35-JOTUSVDUJPOT DPNQJMFCZUFDPEFUP$DPEF BOE HDDDMBOHHFOFSBUFTOBUJWFDPEF w #BDLHSPVOEDPNQJMBUJPOPOQUISFBE w %FPQUJNJ[BUJPOGSPNOBUJWFDPEFUPCZUFDPEF

:"37#ZUFDPEF QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF 5ISFBE3VCZ7. -FU`TTFFIPXJU`TEJ⒎FSFOUGSPNDVSSFOUPOF 4UBDL 1SPHSBN$PVOUFS

35-#ZUFDPEF WBMUFNQ NVMUJ UFNQ@SFU 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS *O.+*5
7.JOTUSVDUJPOTBOEDPNQJMFSBSFSFQMBDFE 3FHJTUFS 1SPHSBN$PVOUFS 3FHJTUFS $BMMDPVOU

$BMMDPVOU 35-#ZUFDPEF WBMUFNQ NVMUJ UFNQ@SFU 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS
)PX.+*5XPSLT 3FHJTUFS 1SPHSBN$PVOUFS 3FHJTUFS

$BMMDPVOU 35-#ZUFDPEF WBMUFNQ JNVMUJ UFNQ@SFU 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS
)PX.+*5XPSLT 3FHJTUFS 1SPHSBN$PVOUFS 3FHJTUFS $IBOHFJOTUSVDUJPO EFQFOEJOHPO SFDFJWFSUZQF NVMUJ 0CKFDU *OUFHFS JNVMUJ *OUFHFS *OUFHFS

)PX.+*5XPSLT 3FHJTUFS 1SPHSBN$PVOUFS 3FHJTUFS

)PX.+*5XPSLT 3FHJTUFS 1SPHSBN$PVOUFS 3FHJTUFS SFUVSO

)PX.+*5XPSLT *OUFSQSFU

)PX.+*5XPSLT *OUFSQSFU -PDBMpMFT $DPEFPGNFUIPE $PNQJMF

-PDBMpMFT $BMMDPVOU 35-#ZUFDPEF WBMUFNQ JNVMUJ UFNQ@SFU 5ISFBE3VCZ7.
5ISFBE+*5DPNQJMFS )PX.+*5XPSLT *OUFSQSFU $DPEFPGNFUIPE $PNQJMF 4IBSFE0CKFDUpMF HDD DMBOH

5ISFBE+*5DPNQJMFS )PX.+*5XPSLT *OUFSQSFU $DPEFPGNFUIPE $PNQJMF 4IBSFE0CKFDUpMF HDD DMBOH .FNPSZ /BUJWFDPEF EMTZN

5ISFBE+*5DPNQJMFS )PX.+*5XPSLT *OUFSQSFU $DPEFPGNFUIPE $PNQJMF 4IBSFE0CKFDUpMF HDD DMBOH .FNPSZ EMTZN $BMM /BUJWFDPEF

)PXJT.+*5 w .+*5BDIJFWFEHSFBUQFSGPSNBODF w *UDMBJNTYTQFFEVQGSPN3VCZXJUI0QUDBSSPU

)PXJT.+*5 w .+*5BDIJFWFEHSFBUQFSGPSNBODF w *UDMBJNTYTQFFEVQGSPN3VCZXJUI0QUDBSSPU w #VUSFQMBDJOHDPNQJMFSBOE7.JOTUSVDUJPOTNJHIUCFUPPSJTLZ w 4P*GPSLFE.+*5UPNBLF.+*5JOUSPEVDUJPOTBGFS QPSUJOH
--3#`TJEFBTUPDPNQJMFTUBDLCBTFEJOTUSVDUJPOT

:"37.+*5 IUUQTHJUIVCDPNLLVCVOZBSWNKJU

:"37.+*5 w "GPSLPG.+*5QSPKFDUNBEFCZNF w 5IFTBNFUISFBEJOH DPEFHFOFSBUJPOBOE+*5TDIFEVMJOH w #VUJUBDIJFWFT+*5DPNQJMBUJPOXJUIPVUSFQMBDJOH7.JOTUSVDUJPOT

-FU`TTFFIPX:"37.+*5PQUJNJ[FTUIJT :"37CZUFDPEF QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF

'JSTUPGBMM XIZDBO`UXFEPUIJT QVUPCKFDU MFBWF :"37CZUFDPEF QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF

QVUPCKFDU MFBWF DMBTT*OUFHFS EFG PCK PCK FOE FOE 'JSTUPGBMM
XIZDBO`UXFEPUIJT :"37CZUFDPEF

8FOFFEUPDIFDLNFUIPESFEFpOJUJPO QVUPCKFDU MFBWF DMBTT*OUFHFS EFG PCK PCK FOE FOE
$VSSFOU3VCZDPNQJMFSEPFTO`UQSPWJEFTVDIPQUJNJ[BUJPO :"37CZUFDPEF

)PXEPFT:"37.+*5PQUJNJ[FUIJT QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF $BMMDPVOU :"37CZUFDPEF 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS

QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF $BMMDPVOU *OUFSQSFU :"37CZUFDPEF )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS

QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF $BMMDPVOU $IFDL :"37CZUFDPEF )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS
*OUFSQSFU

QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF $BMMDPVOU (FOFSBUF$DPEF 7"-6&PQU@NVMU B C \
*G OPU@SFEFpOFE JOU@NVMU \ SFUVSOB C ^FMTF\ SFUVSOWN@FYFD ^ ^ 7"-6&OBUJWF@DPEF \ SFUVSOPQU@NVMU ^ :"37CZUFDPEF )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS 5ISFBE3VCZ7. *OUFSQSFU

QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF $BMMDPVOU 7"-6&PQU@NVMU B C \ *G
OPU@SFEFpOFE JOU@NVMU \ SFUVSOB C ^FMTF\ SFUVSOWN@FYFD ^ ^ 7"-6&OBUJWF@DPEF \ SFUVSOPQU@NVMU ^ $DPNQJMFS 0QUJNJ[F$PNQJMF :"37CZUFDPEF )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS (FOFSBUF$DPEF *OUFSQSFU

7"-6&PQU@NVMU B C \ *G OPU@SFEFpOFE JOU@NVMU \ SFUVSOB C
^FMTF\ SFUVSOWN@FYFD ^ ^ 7"-6&OBUJWF@DPEF \ SFUVSOPQU@NVMU ^ $DPNQJMFS 0QUJNJ[F$PNQJMF )PXEPFT:"37.+*5PQUJNJ[FUIJT

^FMTF\ SFUVSOWN@FYFD ^ ^ 7"-6&OBUJWF@DPEF \ SFUVSOPQU@NVMU ^ $DPNQJMFS 0QUJNJ[F$PNQJMF 7"-6&OBUJWF@DPEF \ *G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ *OMJOF )PXEPFT:"37.+*5PQUJNJ[FUIJT

^FMTF\ SFUVSOWN@FYFD ^ ^ 7"-6&OBUJWF@DPEF \ SFUVSOPQU@NVMU ^ $DPNQJMFS 0QUJNJ[F$PNQJMF 7"-6&OBUJWF@DPEF \ *G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ *OMJOF 7"-6&OBUJWF@DPEF \ *G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ $BMD )PXEPFT:"37.+*5PQUJNJ[FUIJT

^FMTF\ SFUVSOWN@FYFD ^ ^ 7"-6&OBUJWF@DPEF \ SFUVSOPQU@NVMU ^ $DPNQJMFS 0QUJNJ[F$PNQJMF 7"-6&OBUJWF@DPEF \ *G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ *OMJOF 7"-6&OBUJWF@DPEF \ *G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ $BMD 8FDBOSFUVSOBSFTVMUPQUJNJ[FECZ$DPNQJMFS )PXEPFT:"37.+*5PQUJNJ[FUIJT

#ZUFDPEF GPS3VCZ7. QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF $BMMDPVOU 7"-6&OBUJWF@DPEF \ *G
OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS *OUFSQSFU (FOFSBUF$DPEF

#ZUFDPEF GPS3VCZ7. QVUPCKFDU QVUPCKFDU PQU@NVMU MFBWF $BMMDPVOU 40pMF 7"-6&OBUJWF@DPEF \
*G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ $DPNQJMFS )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS *OUFSQSFU (FOFSBUF$DPEF

*G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ /BUJWFDPEF EMTZN $DPNQJMFS )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS *OUFSQSFU (FOFSBUF$DPEF

*G OPU@SFEFpOFE JOU@NVMU \ SFUVSO ^FMTF\ SFUVSOWN@FYFD ^ ^ $BMM $DPNQJMFS )PXEPFT:"37.+*5PQUJNJ[FUIJT 5ISFBE3VCZ7. 5ISFBE+*5DPNQJMFS *OUFSQSFU (FOFSBUF$DPEF EMTZN /BUJWFDPEF

#BTJDJEFBTUPPQUJNJ[F:"37.+*5 w "UUIJTTUBHF *`NGPDVTJOHPO w *OMJOJOHGVODUJPOT w 4LJQQJOHVOOFDFTTBSZXPSL w %FDSFBTJOHDPNQJMBUJPOUJNF
w "T:"37.+*5JTBGPSLPG.+*5 TPNFJEFBTBSFQPSUFEGSPN.+*5

0QUJNJ[BUJPOTJNQMFNFOUFEJO :"37.+*5

*OMJOFGVODUJPOTCZIBWJOH7.TPVSDFDPEFBTIFBEFS w 5ZQF*OMJOJOHGVODUJPOT 1PSUFEGSPN.+*5 w *OTUBMMIFBEFSpMFGPS+*5VOEFSQSFpYEJSFDUPSZ w dSCFOWWFSTJPOTJODMVEFSVCZY@EBSXJO SC@NKJU@NJO@IFBEFSI
w 5IJTJTKVTUQSFQSPDFTTFEWFSTJPOPGWND

5SBOTGPSNGVODUJPOTJOIFBEFSUPTUBUJD w 5ZQF%FDSFBTJOHDPNQJMBUJPOUJNF 1PSUFEGSPN.+*5 w "EElTUBUJDz BOElJOMJOFz UPBMMOPOTUBUJDEFDMBSBUJPOTJOIFBEFSpMF w
$DPNQJMFSDBOTLJQDPNQJMBUJPOPGVOVTFEGVODUJPOTJGUIFZ`SFTUBUJD w *GDPNQJMBUJPOUJNFJTTIPSUFOFE 3VCZQSPHSBNJTPQUJNJ[FEFBMJFS

4LJQFYFDVUJOHTFUKNQJG+*5FEDPEFJTBWBJMBCMF w 5ZQF4LJQQJOHVOOFDFTTBSZXPSL 1PSUFEGSPN.+*5 w 3VCZ`TFYDFQUJPOJTJNQMFNFOUFECZDBMMJOHlTFUKNQzBOElMPOHKNQz w lTFUKNQzOFFETUPTUPSFDPOUFYU TPJU`TTMPX
w .+*5TLJQTJUJGNFUIPEEPFTOPUTFFNUPSBJTFFYDFQUJPO w :"37.+*5`TQPSUJTJODPNQMFUFBOENJHIUCFCSPLFOGPSOPX

"WPJEJOMJOJOHMBSHFGVODUJPO w 5ZQF%FDSFBTJOHDPNQJMBUJPOUJNF JNQMFNFOUFEEJ⒎FSFOUMZGSPN.+*5 w *GIFBEFSJODMVEFTWFSZMBSHFGVODUJPOBOEJU`TJOMJOFE DPNQJMBUJPO CFDPNFTTPTMPX w
FHWN@TFBSDI@NFUIPE w 4P:"37.+*5JNQMFNFOUTEFPQUJNJ[BUJPO DIBOHFGSPNDBMMJOH+*5 DPEFUPJOUFSQSFUJOHCZUFDPEF KVTUUPBWPJEDPNQJMJOHTVDIGVODUJPOT

4BWFlCBTFQPJOUFSzUPDBODFM+*5FYFDVUJPO w 5ZQF4LJQQJOHVOOFDFTTBSZXPSL 1PSUFEGSPN.+*5 w 5PDBODFMDBMMJOH+*5DPEFEVSJOHUIFDBMM JUOFFETUPSFTUPSF7.TUBDL w .+*5BOE:"37.+*5TUPSFT*OJUJBMQPTJUJPOPGTUBDLQPJOUFSBTlCBTF
QPJOUFSzPOFWFSZNFUIPEDBMM w "MUFSOBUJWFMZXFDBODBMDVMBUFCBTFQPJOUFSGSPNQSFWJPVTDPOUSPM GSBNF CVUJUXBTTMPX

*OMJOFFYUFSOBMGVODUJPOTVTFEJO7.JOTUSVDUJPOT w 5ZQF*OMJOJOHGVODUJPOT w .+*5BDIJFWFTUIJTCZEZOBNJDCZUFDPEFTQFDJBMJ[BUJPO w )BWFEFpOJUJPOTPGFYUFSOBMGVODUJPOTVTFECZ7.JO+*5IFBEFS w FH)BWFEFpOJUJPOPGSC@BSZ@BSFGUPJOMJOF"SSBZ<>

*OMJOFTFUVQPGNFUIPEDBMM w 5ZQF*OMJOJOHGVODUJPOT w .+*5BDIJFWFTUIJTCZEZOBNJDCZUFDPEFTQFDJBMJ[BUJPO w 6TFlDBMMDBDIFzJOCZUFDPEFUPLOPXXIBULJOEPGNFUIPEJTVTFE w #BDLHSPVOE:"37`TCZUFDPEFIBTlDBMMDBDIFz XIJDIJODMVEFT
NFUIPEEFpOJUJPOBOEJUTTFUVQNFUIPE w 8FDBOJOMJOFNFUIPETFUVQ MJLFQVTIJOHDPOUSPMGSBNF JGXFLOPX JUTUZQF

8JUIUIPTFUFDIOJRVFT UIJTQFSGPSNBODFJTBDIJFWFE 0QUDBSSPUXJUI[email protected] GQT Ruby
2.0 Ruby 2.5 YARV-MJIT IUUQTHJUIVCDPNLLVCVOZBSWNKJUPQUDBSSPUCFODINBSL

'VUVSFXPSLTGPS:"37.+*5PQUJNJ[BUJPO w 1PSUNPSFUFDIOJRVFTGSPN.+*5 w FH3FNPWFVOOFDFTTBSZGVODUJPOTJOQSFDPNQJMFEIFBEFS w *OMJOFDPSFNFUIPEEFpOFEXJUI$GVODUJPO w *OMJOFNFUIPEEFpOFEXJUICZUFDPEF

)PXDBOXFSFBMJ[F+*5GPS.3*

.BOZQFPQMFIBWFGBJMFEUPJOUSPEVDF+*5 w 5IFSFIBECFFOTPNF+*5JNQMFNFOUBUJPOTQSFTFOUFEBU3VCZ,BJHJ w )PXEJEZBSWMMWNGBJM w "+VTUJO5JNFDPNQJMFSGPS$3VCZ 3V+*5 w
3VCJOJVTIBE+*5DPNQJMFSCBTFEPO--7. CVUJUXBTSFNPWFEJO

8IZEJEUIFZGBJM w ZBSWMMWN)BSEUPJNQSPWFQFSGPSNBODFXJUI.3*SVOUJNF w 3V+*5.FNPSZDPOTVNJOH w 3VCJOJVT)BSEUPpYCVHTJO+*5

$BOXFTPMWF*NQSPWFQFSGPSNBODF w .+*5TIPXFEIPXUPBDIJFWFHSFBUQFSGPSNBODFXJUI.3* w 8FIBWFHPPECFODINBSLTUPTVQQPSUJU w NBNFPQUDBSSPU w OPBIHJCCTSBJMT@SVCZ@CFODI

$BOXFTPMWF.FNPSZDPOTVNJOH w .+*5XBTHPPEFOPVHIBCPVUUIJTUPP

$BOXFTPMWF)BSEUPpYCVHT w .+*5EPFTOPUVTF--7.EJSFDUMZ w /POFFEUPLFFQVQXJUICSFBLJOHDIBOHFTJO--7. w 8FDBOEFCVH4&(7TFFJOH$DPEFBTVTVBM

$BOXFTPMWF)BSEUPpYCVHT w .+*5EPFTOPUVTF--7.EJSFDUMZ w /POFFEUPLFFQVQXJUICSFBLJOHDIBOHFTJO--7. w 8FDBOEFCVH4&(7TFFJOH$DPEFBTVTVBM w #VU.+*5OFFETNBOZDIBOHFTGPSJOUSPEVDUJPO w
5IFMFTTZPVDIBOHF UIFNPSFVOMJLFMZJU`MMCFUPIBWFCVHT

.BLFJOJUJBMSFMFBTFBTTBGFBTQPTTJCMF w %PO`UTPMWFNBOZEJ⒏DVMUQSPCMFNTTJNVMUBOFPVTMZ w 3FQMBDJOH7.JOTUSVDUJPOT w *OUSPEVDFQPSUBCMF+*5JOGSBTUSVDUVSF

.BLFJOJUJBMSFMFBTFBTTBGFBTQPTTJCMF w 3JTLZDIBOHFTIPVMECFBCMFUPCFUVSOFEP⒎BUpSTU w #VUUIFSF`TOPXBZUPUVSOP⒎35-`T7.JOTUSVDUJPOSFQMBDFNFOUT w *NBEF:"37.+*5TPUIBUBMMDIBOHFTCFDPNFPQUJPOBM

.BLFJOJUJBMSFMFBTFBTTBGFBTQPTTJCMF w (SBEVBMMZJOUSPEVDFDIBOHFTUPVQTUSFBN w *BMSFBEZDPNNJUUFETPNFDIBOHFTVTFGVMGPS+*5UP.3* w 3FMFBTF:"37.+*5pSTUBOEUFTU+*5JOGSBTUSVDUVSFTBGFMZ BOEUIFO VTF.+*5JOUIFOFYUSFMFBTF w
.BOZQBSUTPG:"37.+*5DBOCFTIBSFEXJUI.+*5

$VSSFOUTUBUVTPG+*5QSPKFDUT .+*5 :"37.+*5 0QUDBSSPUGQTWT3VCZQSFWJFX XJUIPVU+*5 Y Y 0QUDBSSPUGQTWT3VCZQSFWJFX 8JUI+*5 Y
Y NBLFUFTUUFTUBMMTQFD XJUIPVU+*5 ˓ºº ˓˓˓ NBLFUFTUUFTUBMMTQFD XJUI+*5 ˓ºº ºº˓ +*5XPSLTPO8JOEPXTNBD04-JOVY º˚˓ ˚˓˓ #BTFSFWJTJPO S SPVHIMZ S BMNPTUUSVOL #FODINBSLEFUBJMTIUUQTHJUIVCDPNLLVCVOZBSWNKJUPQUDBSSPUCFODINBSL

8FOFFEZPVSIFMQ w +VTUUSZUIFNXJUIZPVSBQQT CVHSFQPSUTBSFWFSZIFMQGVM w #VUGPSOPXJU`TWFSZMJLFMZUPCFCSPLFOGPSNBOZDBTFT w 1MFBTFSFQSPEVDFCVHXJUIlNJOJSVCZCJOBSZJGQPTTJCMF w 1MFBTFSFQPSUJTTVFTUP
w .+*5IUUQTHJUIVCDPNWONBLBSPWNKJU w :"37.+*5IUUQTHJUIVCDPNLLVCVOZBSWNKJU

)PXUPVTF.+*5PS:"37.+*5 w $PNQJMFGSPNTPVSDFDPEF w HJUDMPOFIUUQTHJUIVCDPNLLVCVOZBSWNKJUDEZBSWNKJU w BVUPDPOG w DPOpHVSFQSFpYl\)0.&^SCFOWWFSTJPOTZBSWNKJUz w
NBLFNBLFJOTUBMM

)PXUPVTF.+*5PS:"37.+*5 w +VTUBEElKzPQUJPOUPlSVCZzDPNNBOEFYFDVUJPO w &YlSVCZGPP@UFTUSCzlSVCZKGPP@UFTUSCz w lKzVTFTHDD1BTTlKMzUPVTF$MBOH ZPVNVTUVTFJUPONBD04 w
1BTTlKWz lKWzPSlKWzUPDIFDL+*5BDUVBMMZGBJMTPSOPU w 1BTTlKEKTzUPEFCVHXJUIHEC MMEC

$PODMVTJPO w .FUIPE+*5DPNQJMFSTGPS.3*DBOHBJOHPPEQFSGPSNBODFNBJOMZ CZIFMQJOH$DPNQJMFSTJOMJOFDPEF w :"37.+*5JTBTBGFNJHSBUJPOQBUIUPSFBMJ[F.+*5JOUSPEVDUJPO w 5PSFBMJ[F+*5 CVHSFQPSUTVTJOHNJOJSVCZBSFWFSZIFMQGVM

Just-In-Time Compiler for MRI

Just-In-Time Compiler for MRI

More Decks by Takashi Kokubun

Other Decks in Programming

Featured

Transcript