IVO anjo

Ruby ❤

CONCURRENCY ❤

}

JRuby ❤

@knux

{talkdesk_ruby_ninja: self}

yukihiro “MATZ” matsumoto

Matz's ruby interpreter

most used ruby

defines what ruby is

simple mark'n'sweep GC

GIL

zendesk: “2-3× faster”

BY KOICHI SASADA

BY... KOICHI SASADA

symbols can now be gc'd ❤

https://bugs.ruby-lang.org/issues/9634

“The idea of this symbol GC is invented by Sasada Koichi”

BY... NARIHIRO NAKAMURA

optcarrot

benchmarks?

status: proposal

YES, BY KOICHI SASADA, AGAIN!

new concurrency model

group threads in guilds

each guild gets its own gil

comm via message passing

COMPACTING GC

Separate heaps for classes/modules/...

status: soon...ish?

not KOICHI SASADA this time

why deoptimize?

Y U MAKE MY RUBY SLEWERS!?

status: WIP PR

https://github.com/ruby/ruby/pull/1419

nobody redefined integer#+? let's inline

oops someone changed it ⤑ OPTIMIZATION IS UNDONE,
WE STILL COOL

ON TOP OF MRI 2.4

status: tech preview

 rvm soon...?

omr jit compiler engine

ibm health center monitoring tools

OMR is not alone...?

another ruby by matz!?

aot compiled to machine code

based off of ruby 1.8
(no rails, no meta)

TARGETS embedded, embeddable and cli apps

status: over 9000

aka “better performance and true parallelism, today”

Ruby using java vm

status: used IN PRODUCTION

NO gil

java gc miles ahead of ruby gc (sorry koichi-senpai!)

call java/scala/clojure
kotlin/JAVASCRIPT code

SINGLE .JAR/.WAR FILE APPLICATION DEPLOY

deoptimization

graal compiler

SLOW STARTUP: use --dev

no c extensions (FFI WORKS)

NO gil

memory harder to tune

new (2013) ruby on the do; end

aka
“ruby world DOMINATION ENGINE”

speculative optimization

previously known as jruby+truffle

uses truffle java framework

100% ruby lang specs

≥ 96% active* gems

no java/jruby extensions

java 9 “early access” builds

c extensions via “sulong”

jruby/java extensions

substratevm

(ruby) world domination