Slide 1
Slide 1 text
)PX(P$BDIF5FTUT
(P3FMFBTF1BSUZJO5PLZP
(VOPTZ*OD
#VTJOFTT%FWFMPQNFOU5FBN
4PGUXBSF&OHJOFFS
4FJKJ5BLBIBTIJ
!@@UJNBLJO@@
Slide 2
Slide 2 text
Seiji Takahashi
@__timakin__
• Career
• DeNA
• Platform Development
• Serverside Engineering (Perl)
• Translimit
• Game Development: Craft Warrirors
• Game Client Side (Cocos-2dx, C++)
• Gunosy
• Application Dev: LUCRA
• Serverside Engineering (Go)
• iOS Client Side (Swift)
• Engieering
• Language: Go (Contributed), Swift
• Platform: GAE, AWS
Slide 3
Slide 3 text
No content
Slide 4
Slide 4 text
"HFOEB
w 8IBUJTUFTUDBDIJOH
w .ZpSTUDPOUBDUXJUIUIJTGFBUVSF
w *NQMFNFOUBUJPO
Slide 5
Slide 5 text
"HFOEB
w 8IBUJTUFTUDBDIJOH
w .ZpSTUDPOUBDUXJUIUIJTGFBUVSF
w *NQMFNFOUBUJPO
Slide 6
Slide 6 text
8IBUJTUFTUDBDIJOH
if the test executable and
command line match a previous run and
the files and environment variables consulted by that run
have not changed either, go test will print the previous test
output, replacing the elapsed time with the string “(cached).”
Slide 7
Slide 7 text
8IBUJTUFTUDBDIJOH
5IFqBHTFYFDVUBCMFXJUIBDBDIFPQUJPO
• -cpu
• -list
• -parallel
• -run
• -short
• -v
Slide 8
Slide 8 text
8IBUJTUFTUDBDIJOH
5IFqBHUPJHOPSFDBDIJOH
• -count=1
%FMFUFDBDIFEIJTUPSZXJUIAHPDMFBOA
• go clean -testcache
Slide 9
Slide 9 text
8IBUJTUFTUDBDIJOH
Benchmarking, and cpu/mem profiling might slightly
change from run to run.
So they aren’t cached.
/PODBDIFBCMF TUBUFGVM
PQUJPOT
Slide 10
Slide 10 text
No content
Slide 11
Slide 11 text
No content
Slide 12
Slide 12 text
No content
Slide 13
Slide 13 text
No content
Slide 14
Slide 14 text
"HFOEB
w 8IBUJTUFTUDBDIJOH
w .ZpSTUDPOUBDUXJUIUIJTGFBUVSF
w *NQMFNFOUBUJPO
Slide 15
Slide 15 text
.ZpSTUDPOUBDUXJUIUIJTGFBUVSF
DNEHPDPWFSBHFQSPpMFTIPVMECFDBDIFE
XJUIUFTUT
Slide 16
Slide 16 text
No content
Slide 17
Slide 17 text
No content
Slide 18
Slide 18 text
No content
Slide 19
Slide 19 text
No content
Slide 20
Slide 20 text
In the process of code-reading and implementing,
code is often written near an original caching execution.
By chance I’ve read that code before I actually use the
caching strategy.
DBDIFBCMFDPWFSQSPpMF
.ZpSTUDPOUBDUXJUIUIJTGFBUVSF
Slide 21
Slide 21 text
"HFOEB
w 8IBUJTUFTUDBDIJOH
w .ZpSTUDPOUBDUXJUIUIJTGFBUVSF
w *NQMFNFOUBUJPO
Slide 22
Slide 22 text
*NQMFNFOUBUJPO
3FHJTUFSUFTUDPNNBOE
Slide 23
Slide 23 text
*NQMFNFOUBUJPO
$PNNBOE*OJUJBMJ[BUJPO
Slide 24
Slide 24 text
*NQMFNFOUBUJPO
4FUVQDBDIFPQUJPOGPSCVJMEJOHBQBDLBHF
Slide 25
Slide 25 text
*NQMFNFOUBUJPO
$IFDLBOFYJTUFODFPGDBDIFBSUJGBDUT
Slide 26
Slide 26 text
*NQMFNFOUBUJPO
1BSTFDBDIFFYQJSBUJPOUJNF SVO5FTU
Slide 27
Slide 27 text
*NQMFNFOUBUJPO
(FUUIFEFGBVMUEJSQBUIPGDBDIFBSUJGBDUT
Slide 28
Slide 28 text
*NQMFNFOUBUJPO
Slide 29
Slide 29 text
*NQMFNFOUBUJPO
5SZJOHUPVTFDBDIF
Slide 30
Slide 30 text
*NQMFNFOUBUJPO
$IFDLXIFUIFSUIFPQUJPOTBSFDBDIFBCMF
Slide 31
Slide 31 text
*NQMFNFOUBUJPO
-PBECZUFBSSBZTPGCVJMUUFTUBSUJGBDUT
BOEWBMJEBUFUIFFYQJSBUJPOUJNF
Slide 32
Slide 32 text
*NQMFNFOUBUJPO
8SJUFUIFl DBDIFE
zTUEPVUJOUPUIFCVGGFS
Slide 33
Slide 33 text
*NQMFNFOUBUJPO
AHPDMFBOUFTUDBDIFA
Slide 34
Slide 34 text
-FU`TDBDIF
w "MMPGTUBUFMFTTUFTUTXPVMECFDBDIFEBOE
IJHIQFSGPSNBODF
w (PDBDIFEFQFOETPOCJOBSZDBDIFBOE
SFDPSEPGUIFFYQJSBUJPOUJNF
w *UJTKVTUBOFXGFBUVSFTPMFU`TDPOUSJCVUFUP
(P