Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Creating gems 101
Search
Sponsored
·
Your Podcast. Everywhere. Effortlessly.
Share. Educate. Inspire. Entertain. You do you. We'll handle the rest.
→
Masafumi Okura
September 05, 2024
Programming
2
170
Creating gems 101
Gem作成に関するトークです。
https://omotesandorb.connpass.com/event/328438/
Masafumi Okura
September 05, 2024
Tweet
Share
More Decks by Masafumi Okura
See All by Masafumi Okura
Metaprogramming isn't real, it can't hurt you
okuramasafumi
0
130
Developing static sites with Ruby
okuramasafumi
1
390
Why doesn't Ruby have Boolean class - final version
okuramasafumi
0
380
Reading Rails 1.0 Source Code
okuramasafumi
0
350
RDoc meets YARD
okuramasafumi
4
210
Why doesn't Ruby have Boolean class?
okuramasafumi
0
44
My KaigiEffect at RubyKaigi 2025, part 1
okuramasafumi
1
99
Writing documentation can be fun with plugin system
okuramasafumi
0
250
Alba: Why, How and What's So Interesting
okuramasafumi
0
490
Other Decks in Programming
See All in Programming
モジュラモノリスにおける境界をGoのinternalパッケージで守る
magavel
0
3.3k
今、アーキテクトとして 品質保証にどう関わるか
nealle
0
190
猫の手も借りたい!ので AIエージェント猫を作って社内に放した話 Claude Code × Container Lambda の Slack Bot "DevNeko"
naramomi7
0
220
社内規程RAGの精度を73.3% → 100%に改善した話
oharu121
9
4.5k
New in Go 1.26 Implementing go fix in product development
sunecosuri
0
100
PostgreSQL を使った快適な go test 環境を求めて
otakakot
0
370
AI活用のコスパを最大化する方法
ochtum
0
110
15年目のiOSアプリを1から作り直す技術
teakun
0
570
The Past, Present, and Future of Enterprise Java
ivargrimstad
0
310
受け入れテスト駆動開発(ATDD)×AI駆動開発 AI時代のATDDの取り組み方を考える
kztakasaki
2
490
ご飯食べながらエージェントが開発できる。そう、Agentic Engineeringならね。
yokomachi
1
270
浮動小数の比較について
kishikawakatsumi
0
360
Featured
See All Featured
Mind Mapping
helmedeiros
PRO
1
110
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
141
35k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
2.3k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
17k
The AI Search Optimization Roadmap by Aleyda Solis
aleyda
1
5.3k
The Mindset for Success: Future Career Progression
greggifford
PRO
0
260
Lightning Talk: Beautiful Slides for Beginners
inesmontani
PRO
1
460
Primal Persuasion: How to Engage the Brain for Learning That Lasts
tmiket
0
270
From π to Pie charts
rasagy
0
140
Amusing Abliteration
ianozsvald
0
120
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
11
850
sira's awesome portfolio website redesign presentation
elsirapls
0
170
Transcript
Creating gems 101 Omotesando.rb #101 OKURA Masafumi, 2024-09-05
101ճ։࠵ ͓ΊͰͱ͏ ͍͟͝·͢ʂʂʂ
101
ೖ
ೖgem࡞ Omotesando.rb #101 OKURA Masafumi, 2024-09-05
Dev.introduce(self) • ໊લɿ͓͓͘Β·͞;Έ • ॴଐɿϑϦʔϥϯε • ׆ಈɿKaigi on RailsνʔϑΦʔΨφΠβʔɺAlba gem࡞ऀɺOH!
MY RUBYISTSϙουΩϟετϝΠϯύʔιφϦςΟɺͳͲͳͲ • ࠓͷొஃͷഎܠɿFeikuͱ͍͏৽͍͠gemΛ࡞ͬͨͷͰɺͦͷྲྀΕ ʹ͍ͭͯ͝հ
None
gemΛ࡞Δͱ͖ʹ ·ͣߟ͑Δ͜ͱ
gemΛ࡞Δͱ͖ʹ·ͣߟ͑Δ͜ͱ • ཧ༝ • ΠϯλʔϑΣʔε • ໊લ
લఏ
Feiku https://github.com/okuramasafumi/feiku
Faker Έ͍ͨͳͭ
ཧ༝
ͳͥͦΕ͕ ΄͍͠ͷ͔
طଘͷͷͰ μϝͳͷ͔
Feikuͷ߹
???ɿ ʮFakerͷίʔυͬ ͯΞϨͰ͢ΑͶ͑ʯ
FakerͷίʔυΛ ݟͨࣗɿ ʮ…ʯ
FakerͷύϑΥʔ ϚϯεΛଌఆ
Comparison: feiku: 11239359.0 i/s ffaker: 1296337.9 i/s - 8.67x slower
faker: 10084.1 i/s - 1114.57x slower
1000ഒʂʁ
Comparison: feiku: 0 allocated ffaker: 637748 allocated - Infx more
faker: 98919397 allocated - Infx more
100MB!?
Faker::Name.name ͢Δ͚ͩͰʁ
ڥʹѱ͍ʂ
ஔ͖͑Α͏ʂ
ࣗͷΛ ࣗͰ͢
͕ࣗ΄͍͠ͷ Λ࡞Δ
ΠϯλʔϑΣʔε
Feikuͷ߹
Fakerʹ߹ΘͤΔ
͘ΘΕ͍ͯΔ ΠϯλʔϑΣʔε ʹ߹ΘͤΔ
ਓ৽͍͍͠ํ Λ֮͑ͨ͘ͳ͍
໊લ
໊લॏཁʂʂʂ
Feikuͷ߹
ॳͷҊɿ “Realer”
Fakerͷٯ
ࢥ͍͢ ʮ͕͢͞ʹฆΒΘ ͍͠ͳ͋ʯ
ࠔͬͨͱ͖ͷ ϩʔϚࣈදه
͓·͚ɿ Albaͷ߹
ίϯηϓτ ʮߴʯ
͍ͷ
͍ੜ͖
ࢲɿ ʮΞϗυϦͬͯ ࣌100kmͳͷʂʯ
ࢲɿ ʮ໊͔͠લ͕ Ξϗ͍͍ͬͯͶʯ
ΞϗυϦ
Albatross
Alba
FeikuͱAlbaͷ ڞ௨
͍ ൃԻ༰қ ͍֮͑͢
·ͱΊ
Creating gems 101 • ཧ༝ • ύϑΥʔϚϯεͳͲɺࣗͷΛࣗͰ͢ • ΠϯλʔϑΣʔε •
͢Ͱʹ͘ΘΕ͍ͯΔͷʹ߹ΘͤΔ • ໊લ • ͘ɺൃԻ͕༰қͰ໊͍֮͑͢લʹ͢Δ
Happy hacking!