Temurin-build: Shenandoah GC๋Š” 11.0.9์—์„œ ์‚ฌ์šฉํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.

์— ๋งŒ๋“  2020๋…„ 10์›” 24์ผ  ยท  10์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: adoptium/temurin-build

ํ”Œ๋žซํผ : Linux

์•„ํ‚คํ…์ฒ˜ : x86_64

๋ฐ”์ด๋„ˆ๋ฆฌ์—์„œ ๋ฐœ์ƒํ•œ ๋ฌธ์ œ์™€ ๊ฐ€๋Šฅํ•œ ๊ฒฝ์šฐ์ด๋ฅผ ์žฌํ˜„ํ•˜๋Š” ๋ฐฉ๋ฒ•์„ ์„ค๋ช…ํ•ด์ฃผ์„ธ์š”.

AdoptOpenJDK 11.0.9 ๋นŒ๋“œ๋Š” Shenandoah GC๋ฅผ ํฌํ•จํ•˜์ง€ ์•Š๋Š” ๊ฒƒ์œผ๋กœ ๋ณด์ž…๋‹ˆ๋‹ค.
GC๋ฅผ ํฌํ•จํ•ด์•ผํ•ฉ๋‹ˆ๊นŒ?

OpenJDK wiki ์— ๋”ฐ๋ฅด๋ฉด ๋ฉ”์ธ ๋ผ์ธ ๋นŒ๋“œ์— ์žˆ์–ด์•ผํ•ฉ๋‹ˆ๋‹ค.

_In mainline OpenJDK 11u builds since 11.0.9._

v11.0.9์—์„œ GC๋ฅผ ํ™œ์„ฑํ™”ํ•˜๋ ค๊ณ ํ•˜๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™์€ ๊ฒฐ๊ณผ๊ฐ€ ๋ฐœ์ƒํ•ฉ๋‹ˆ๋‹ค.

~ % docker run -it openjdk:11-jre-buster

root<strong i="17">@6e987dc384f8</strong>:/# java -version
openjdk version "11.0.9" 2020-10-20
OpenJDK Runtime Environment 18.9 (build 11.0.9+11)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.9+11, mixed mode)

root<strong i="18">@6e987dc384f8</strong>:/# java -XX:+UseShenandoahGC -Xlog:gc -version
Unrecognized VM option 'UseShenandoahGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

๊ฐ€์žฅ ์œ ์šฉํ•œ ๋Œ“๊ธ€

์ด @ marko-asplund๋ฅผ๋ณด๊ณ  ํ•ด์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค ๐Ÿฅ‡

AdoptOpenJDK ํ”„๋กœ์ ํŠธ์— ์ฐธ์—ฌ ํ•ด์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค! ๐Ÿ™‡ ๐Ÿ‘

๋ชจ๋“  10 ๋Œ“๊ธ€

Zulu OpenJDK 11.0.9 + 11 ๋นŒ๋“œ์—์„œ ์‚ฌ์šฉํ•  ์ˆ˜์žˆ๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

~ % java -XX:+UseShenandoahGC -Xlog:gc -version
[0.005s][info][gc] Heuristics ergonomically sets -XX:+ExplicitGCInvokesConcurrent
[0.005s][info][gc] Heuristics ergonomically sets -XX:+ShenandoahImplicitGCInvokesConcurrent
[0.005s][info][gc] Using Shenandoah
openjdk version "11.0.9" 2020-10-20 LTS
OpenJDK Runtime Environment Zulu11.43+21-CA (build 11.0.9+11-LTS)
OpenJDK 64-Bit Server VM Zulu11.43+21-CA (build 11.0.9+11-LTS, mixed mode)
[0.052s][info][gc] Cancelling GC: Stopping VM

AdoptOpenJDK 11.0.9 ๋นŒ๋“œ๋Š” Shenandoah GC๋ฅผ ํฌํ•จํ•˜์ง€ ์•Š๋Š” ๊ฒƒ์œผ๋กœ ๋ณด์ž…๋‹ˆ๋‹ค.

๋˜ฅ.

GC๋ฅผ ํฌํ•จํ•ด์•ผํ•ฉ๋‹ˆ๊นŒ?

์˜ˆ, https://github.com/AdoptOpenJDK/openjdk-build/pull/2125๋ฅผ ์ฐธ์กฐ

์ค‘๊ฐ„์— Docker์—†์ด :

jdk-11.0.9+11/bin/java -XX:+UseShenandoahGC -Xlog:gc -version
Unrecognized VM option 'UseShenandoahGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
root<strong i="13">@bb000aee1f7d</strong>:/# jdk-11.0.9+11/bin/java -version
openjdk version "11.0.9" 2020-10-20
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.9+11)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.9+11, mixed mode)

์ด @ marko-asplund๋ฅผ๋ณด๊ณ  ํ•ด์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค ๐Ÿฅ‡

์ด @ marko-asplund๋ฅผ๋ณด๊ณ  ํ•ด์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค ๐Ÿฅ‡

AdoptOpenJDK ํ”„๋กœ์ ํŠธ์— ์ฐธ์—ฌ ํ•ด์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค! ๐Ÿ™‡ ๐Ÿ‘

์ง„ํ–‰์ค‘์ธ ์—…๋ฐ์ดํŠธ ๋œ bulids๊ฐ€ ์ž‘๋™ํ•˜๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

[sxa<strong i="6">@sainz</strong> bin]$ ./java -XX:+UseShenandoahGC -Xlog:gc -version
[0.014s][info][gc] Heuristics ergonomically sets -XX:+ExplicitGCInvokesConcurrent
[0.014s][info][gc] Heuristics ergonomically sets -XX:+ShenandoahImplicitGCInvokesConcurrent
[0.017s][info][gc] Using Shenandoah
openjdk version "11.0.9" 2020-10-20
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.9+11)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.9+11, mixed mode)
[0.112s][info][gc] Cancelling GC: Stopping VM
[sxa<strong i="7">@sainz</strong> bin]$ 

Shenandoah ์ง€์› ๋นŒ๋“œ๋Š” ๊ด€๋ จ ํ”Œ๋žซํผ์— ๋Œ€ํ•ด jdk-11.0.9 + 11.1๋กœ ์›น ์‚ฌ์ดํŠธ์— ์žˆ์Šต๋‹ˆ๋‹ค.

๊ณ ๋งˆ์›Œ์š”! ๐Ÿš€ ๐Ÿ™Œ ๐Ÿ‘

@sxa ๋‹ค์‹œ ํ•œ ๋ฒˆ ๊ฐ์‚ฌ๋“œ๋ฆฝ๋‹ˆ๋‹ค! ๐Ÿ‘

Btw, ์—ฌ๋Ÿฌ๋ถ„๋„ ๊ณต์‹ adaptopenjdk ๋„์ปค ์ด๋ฏธ์ง€๋ฅผ ๊ณต๊ฐœํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๊นŒ?
11.0.9 ๋ฐ Shenandoah๋กœ adoptopenjdk:11-jre-hotspot ๋ณ€ํ˜•์„ ์–ป๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค.

์šฐ๋ฆฌ๊ฐ€ ๋งŒ๋“ญ๋‹ˆ๋‹ค. ์™ธ๋ถ€ ์กฐ์ง๊ณผ์˜ ๊ณต๋™ ์ž‘์—…์ด ํ•„์š”ํ•˜๊ธฐ ๋•Œ๋ฌธ์— ํ•ญ์ƒ ๋” ๋งŽ์€ ์‹œ๊ฐ„์ด ๊ฑธ๋ฆฝ๋‹ˆ๋‹ค. PR์ด ์žˆ์Šต๋‹ˆ๋‹ค : https://github.com/docker-library/official-images/pull/8953

์˜ˆ- .1 ๋ฆด๋ฆฌ์Šค๊ฐ€์žˆ๋Š” ์ผ๋ถ€ ๋„์ปค ํ”Œ๋žซํผ์„ ์ฒ˜๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด ์ผ๋ถ€ ์ˆ˜์ •์ด ์ด๋ฃจ์–ด์ ธ์•ผํ•˜๋ฏ€๋กœ ์•ฝ๊ฐ„์˜ ์ง€์—ฐ์ด ์žˆ์—ˆ์œผ๋ฏ€๋กœ ํ™•์‹คํžˆ ์‚ฌ์šฉํ•  ์ˆ˜์žˆ๊ฒŒ ๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค!

์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ๋‚˜์š”?
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