JJUG CCC 2018 Spring の LT 資料 なお Tips は108 もないです…

1. Spring Boot
108 Tips
JJUG CCC 2018 Spring LT
@mike_neck

2. •
•@mike_neck
•https://github.com/mike-neck
•direct L is B
• I7 ( ) Netty
•

3. Tips.1
Class Data Sharing

4. Tips.1 Class Data
Sharing
•Class Data Sharing Java SE
10 OpenJDK
•JVM
/ JVM

5. Tips.1 Class Data
Sharing
•
•
•
•

6. Tips.1
•
•https://mike-
neck.hatenadiary.com/entry/
2018/04/03/083000

7. Tips.1 CDS
CDS CDS
6.206 sec 6.571 sec
1 6.366 sec 6.503 sec
2 6.180 sec 6.893 sec
3 6.071 sec 6.319 sec

9. Tips.1 Class Data
Sharing
• Spring Boot Jar (
)
•Spring Boot Jar
•Spring Boot Jar Jar
gradle

10. Tips.1 CDS
( )
Spring
Boot Jar
Jar
CDS
Jar
CDS
12.21 sec 10.79 sec 7.663 sec
1 12.84 sec 10.46 sec 7.455 sec
2 11.81 sec 10.28 sec 7.861 sec
3 11.97 sec 11.64 sec 7.673 sec

11. Tips.2
JVM

12. Tips.2 JVM
•-XX:TieredCompilation
• (Java8 )
•-XX:TieredStopAtLevel=1
• 1(=
/ )
•-noerify
•

13. Tips.2 JVM
CDS
-XX:TieredCompilation
-XX:TieredStopAtLevel=1
-noverify
3.709 sec
-XX:TieredCompilation
-XX:TieredStopAtLevel=1 4.493 sec
-XX:TieredCompilation 5.963 sec
6.866 sec

14. Tips.3 Tips.107

15. Tips.108
SpringBootApplication

16. • Spring Boot
@SpringBootApplication
@SpringBootApplication
Spring Boot

17. Tips.108
Spring Boot
@SpringBootApplication
class MyApplication {
public static void main(String[] args) {
SpringApplication.run(MyApplication.class);
}
}

18. Tips.108
@SpringBootApplication
class MyApplication {
public static void main(String[] args) {
SpringApplication.run(MyApplication.class);
}
}

19. Tips.108
SpringBootApplication
@Configuration
@Import({
AopAutoConfiguration.class,
DataSourceAutoConfiguration.class,
DataSourcePoolMetadataProvidersConfiguration.class,
DataSourceTransactionManagerAutoConfiguration.class,
FlywayAutoConfiguration.class,
HibernateJpaAutoConfiguration.class,
JacksonAutoConfiguration.class,
//…
})
@EnableJpaRepositories(basePackages = {“com.example.repository”})
@EntityScan(basePackages = {“com.example.jpa.entity”})
class MyApplication {
public static void main(String[] args) {
SpringApplication.run(MyApplication.class);
}
}

20. Tips.108
Spring
Boot
@SpringBootApplication
6.206 sec 5.811 sec
1 6.366 sec 5.975 sec
2 6.180 sec 5.817 sec
3 6.071 sec 5.642 sec

21. •Spring Boot
108 Tips
• Tips