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Phillip Webb 2023-11-02 14:24:05 -07:00
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spring-boot-project/spring-boot-docs/src/docs/asciidoc/deployment/efficient.adoc
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@ -34,7 +34,6 @@ The jar contains a `classpath.idx` file which is used by the `JarLauncher` when
[[deployment.efficient.aot]] [[deployment.efficient.aot]]
=== Using Ahead-of-time Processing With the JVM === Using Ahead-of-time Processing With the JVM
It's beneficial for the startup time to run your application using the AOT generated initialization code. It's beneficial for the startup time to run your application using the AOT generated initialization code.
First, you need to ensure that the jar you are building includes AOT generated code. First, you need to ensure that the jar you are building includes AOT generated code.
@ -51,9 +50,9 @@ When the JAR has been built, run it with `spring.aot.enabled` system property se
[source,shell,indent=0,subs="verbatim"] [source,shell,indent=0,subs="verbatim"]
---- ----
$ java -Dspring.aot.enabled=true -jar myapplication.jar $ java -Dspring.aot.enabled=true -jar myapplication.jar
........ Starting AOT-processed MyApplication ... ........ Starting AOT-processed MyApplication ...
---- ----
Beware that using the ahead-of-time processing has drawbacks. Beware that using the ahead-of-time processing has drawbacks.
@ -66,10 +65,11 @@ It implies the following restrictions:
To learn more about ahead-of-time processing, please see the <<native-image#native-image.introducing-graalvm-native-images.understanding-aot-processing,Understanding Spring Ahead-of-Time Processing section>>. To learn more about ahead-of-time processing, please see the <<native-image#native-image.introducing-graalvm-native-images.understanding-aot-processing,Understanding Spring Ahead-of-Time Processing section>>.
[[deployment.efficient.checkpoint-restore]] [[deployment.efficient.checkpoint-restore]]
=== Checkpoint and Restore With the JVM === Checkpoint and Restore With the JVM
https://wiki.openjdk.org/display/crac/Main[Coordinated Restore at Checkpoint] (CRaC) is an OpenJDK project that defines a new Java API to allow you to checkpoint and restore an application on the HotSpot JVM.
https://wiki.openjdk.org/display/crac/Main[CRaC] is an OpenJDK project that defines a new Java API to allow you to checkpoint and restore an application on the HotSpot JVM.
It is based on https://github.com/checkpoint-restore/criu[CRIU], a project that implements checkpoint/restore functionality on Linux. It is based on https://github.com/checkpoint-restore/criu[CRIU], a project that implements checkpoint/restore functionality on Linux.
The principle is the following: you start your application almost as usual but with a CRaC enabled version of the JDK like https://www.azul.com/downloads/?package=jdk-crac#zulu[the one provided by Azul]. The principle is the following: you start your application almost as usual but with a CRaC enabled version of the JDK like https://www.azul.com/downloads/?package=jdk-crac#zulu[the one provided by Azul].