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@edeandrea for Developers Eric Deandrea Sr. Principal Developer Advocate Red Hat

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@edeandrea

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@edeandrea Who’s on Stage Today? Eric Deandrea 🀘 25+ years software development experience Java Champion 🀘 Contributor to Open Source projects Quarkus Spring Boot, Spring Framework, Spring Security LangChain4j (& Quarkus LangChain4j) Wiremock Microcks 🀘 Published author

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@edeandrea ● How Quarkus enables modern Java development & the Kubernetes-native experience ● Introduce familiar Spring concepts, constructs, & conventions and how they map to Quarkus ● Emphasis on testing patterns & practices https://red.ht/quarkus-spring-devs

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@edeandrea Java, The Enterprise Workhorse

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@edeandrea Java, The Enterprise Workhorse

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@edeandrea Monolith J2SE / J2EE Java / Jakarta EE Java, The Enterprise Workhorse

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@edeandrea Monolith J2SE / J2EE Java / Jakarta EE Java, The Enterprise Workhorse

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@edeandrea Monolith J2SE / J2EE Java / Jakarta EE Cloud-Native Microservices Spring Boot MicroProfile Java, The Enterprise Workhorse

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@edeandrea Monolith J2SE / J2EE Java / Jakarta EE Cloud-Native Microservices Spring Boot MicroProfile Java, The Enterprise Workhorse

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@edeandrea Monolith J2SE / J2EE Java / Jakarta EE Cloud-Native Microservices Spring Boot MicroProfile Java, The Enterprise Workhorse

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@edeandrea Java / Jakarta EE J2SE / J2EE Monolith Cloud-Native Microservices Spring Boot MicroProfile Java, The Enterprise Workhorse

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@edeandrea Java / Jakarta EE J2SE / J2EE Monolith Cloud-Native Microservices Serverless Event-Driven Microservices Cloud-Native Spring Boot MicroProfile Java, The Enterprise Workhorse

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@edeandrea The Warmup Issue with Java Simon Ritter - Azul Systems - https://youtu.be/bWmuqh6wHgE (first 13 minutes)

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@edeandrea Build Time Runtime Packaging (maven, etc) gradle…) Load config file from file system Parse it Classpath scanning to find annotated classes Attempt to load class to enable/disable features Build its model of the world. Start the management (thread, pool…) @ @ > How Does a Framework Start?

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@edeandrea The Quarkus Way Runtime Build Time @ @ > Package model

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@edeandrea JVM Build Time @ @ > Package model Native The Quarkus Way enables Native Compilation

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@edeandrea Unification of Imperative & Reactive Unification of Imperative and Reactive

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@edeandrea 🀘Zero-config Live coding 🀘Auto-provision services 🀘Continuous testing 🀘Dev UI 🀘CLI Enhancing Developer Joy

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@edeandrea IT’S STILL JAVA!

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@edeandrea

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@edeandrea Jam Time!

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@edeandrea https://www.techempower.com/benchmarks/#section=data-r22&test=db&f=zijunz-zik0zj-zik0zj-zik0zj-zik0zj-zik0zj-zik0zj-v2qiv3-xamxa7-zik0zj-zik0zj-zik0zj-zik0zj-zik0zj-1ekf&hw=ph&l=zik0vz-cn3 https://www.redhat.com/en/blog/key-findings-idc-red-hat-quarkus-lab-validation https://www.reddit.com/r/java/comments/o0ewar/do_quarkus_performance_benefits_scale Don’t Take My Word For It!

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@edeandrea JVM Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 8.95 5.27 169.72% Av. RSS after startup (MB) 195.94 319.45 61.34% Av. time to 1st req (ms) 2,566 6,287 40.81% Av. RSS after 1st req (MB) 247.94 324.35 76.44% Av. throughput (req/sec) 31,753.08 7,886.45 402.63% Max throughput density (req/sec/MB) 58.27 13.62 427.98% Native Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 123.62 206.84 59.76% Av. RSS after startup (MB) 71.06 192.3 36.95% Av. time to 1st req (ms) 106.33 469.33 22.66% Av. RSS after 1st req (MB) 78.36 194.7 40.25% Av. throughput (req/sec) 18,022.79 6,729.3 267.83% Max throughput density (req/sec/MB) 69.6 17.5 397.81% Don’t Take My Word For It! Some real numbers (8 cores, 14GB RAM, GraalVM CE 21.0.2)

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@edeandrea JVM Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 8.95 5.27 169.72% Av. RSS after startup (MB) 195.94 319.45 61.34% Av. time to 1st req (ms) 2,566 6,287 40.81% Av. RSS after 1st req (MB) 247.94 324.35 76.44% Av. throughput (req/sec) 31,753.08 7,886.45 402.63% Max throughput density (req/sec/MB) 58.27 13.62 427.98% Native Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 123.62 206.84 59.76% Av. RSS after startup (MB) 71.06 192.3 36.95% Av. time to 1st req (ms) 106.33 469.33 22.66% Av. RSS after 1st req (MB) 78.36 194.7 40.25% Av. throughput (req/sec) 18,022.79 6,729.3 267.83% Max throughput density (req/sec/MB) 69.6 17.5 397.81% Don’t Take My Word For It! Some real numbers (8 cores, 14GB RAM, GraalVM CE 21.0.2)

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@edeandrea JVM Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 8.95 5.27 169.72% Av. RSS after startup (MB) 195.94 319.45 61.34% Av. time to 1st req (ms) 2,566 6,287 40.81% Av. RSS after 1st req (MB) 247.94 324.35 76.44% Av. throughput (req/sec) 31,753.08 7,886.45 402.63% Max throughput density (req/sec/MB) 58.27 13.62 427.98% Native Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 123.62 206.84 59.76% Av. RSS after startup (MB) 71.06 192.3 36.95% Av. time to 1st req (ms) 106.33 469.33 22.66% Av. RSS after 1st req (MB) 78.36 194.7 40.25% Av. throughput (req/sec) 18,022.79 6,729.3 267.83% Max throughput density (req/sec/MB) 69.6 17.5 397.81% Don’t Take My Word For It! Some real numbers (8 cores, 14GB RAM, GraalVM CE 21.0.2)

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@edeandrea JVM Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 8.95 5.27 169.72% Av. RSS after startup (MB) 195.94 319.45 61.34% Av. time to 1st req (ms) 2,566 6,287 40.81% Av. RSS after 1st req (MB) 247.94 324.35 76.44% Av. throughput (req/sec) 31,753.08 7,886.45 402.63% Max throughput density (req/sec/MB) 58.27 13.62 427.98% Native Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 123.62 206.84 59.76% Av. RSS after startup (MB) 71.06 192.3 36.95% Av. time to 1st req (ms) 106.33 469.33 22.66% Av. RSS after 1st req (MB) 78.36 194.7 40.25% Av. throughput (req/sec) 18,022.79 6,729.3 267.83% Max throughput density (req/sec/MB) 69.6 17.5 397.81% Don’t Take My Word For It! Some real numbers (8 cores, 14GB RAM, GraalVM CE 21.0.2)

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@edeandrea JVM Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 8.95 5.27 169.72% Av. RSS after startup (MB) 195.94 319.45 61.34% Av. time to 1st req (ms) 2,566 6,287 40.81% Av. RSS after 1st req (MB) 247.94 324.35 76.44% Av. throughput (req/sec) 31,753.08 7,886.45 402.63% Max throughput density (req/sec/MB) 58.27 13.62 427.98% Native Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 123.62 206.84 59.76% Av. RSS after startup (MB) 71.06 192.3 36.95% Av. time to 1st req (ms) 106.33 469.33 22.66% Av. RSS after 1st req (MB) 78.36 194.7 40.25% Av. throughput (req/sec) 18,022.79 6,729.3 267.83% Max throughput density (req/sec/MB) 69.6 17.5 397.81% Don’t Take My Word For It! Some real numbers (8 cores, 14GB RAM, GraalVM CE 21.0.2)

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@edeandrea JVM Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 8.95 5.27 169.72% Av. RSS after startup (MB) 195.94 319.45 61.34% Av. time to 1st req (ms) 2,566 6,287 40.81% Av. RSS after 1st req (MB) 247.94 324.35 76.44% Av. throughput (req/sec) 31,753.08 7,886.45 402.63% Max throughput density (req/sec/MB) 58.27 13.62 427.98% Native Quarkus Spring Boot Ratio (Quarkus / SB) Framework version 3.12.1 3.3.1 Build time (s) 123.62 206.84 59.76% Av. RSS after startup (MB) 71.06 192.3 36.95% Av. time to 1st req (ms) 106.33 469.33 22.66% Av. RSS after 1st req (MB) 78.36 194.7 40.25% Av. throughput (req/sec) 18,022.79 6,729.3 267.83% Max throughput density (req/sec/MB) 69.6 17.5 397.81% Don’t Take My Word For It! Some real numbers (8 cores, 14GB RAM, GraalVM CE 21.0.2)

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@edeandrea A Real Example

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@edeandrea 🀘 Spring Boot 3 application contents: β—‹ 38,673 classes β—‹ 83,377 fields β—‹ 276,625 methods β—‹ Reflection: β—‹ 10,960 classes β—‹ 1,019 fields β—‹ 12,853 methods A Real Example

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@edeandrea 🀘 Spring Boot 3 application contents: β—‹ 38,673 classes β—‹ 83,377 fields β—‹ 276,625 methods β—‹ Reflection: β—‹ 10,960 classes β—‹ 1,019 fields β—‹ 12,853 methods 🀘 Quarkus 3 application contents: β—‹ 23,584 classes β—‹ 47,091 fields β—‹ 187,261 methods β—‹ Reflection: β—‹ 6,608 classes β—‹ 192 fields β—‹ 4,754 methods A Real Example

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@edeandrea 🀘 Spring Boot 3 application contents: β—‹ 38,673 classes β—‹ 83,377 fields β—‹ 276,625 methods β—‹ Reflection: β—‹ 10,960 classes β—‹ 1,019 fields β—‹ 12,853 methods 🀘 Quarkus 3 application contents: β—‹ 23,584 classes β—‹ 47,091 fields β—‹ 187,261 methods β—‹ Reflection: β—‹ 6,608 classes β—‹ 192 fields β—‹ 4,754 methods 🀘 The Quarkus application has: β—‹ 15,089 (39%) less classes β—‹ 36,286 (44%) less fields β—‹ 89,364 (32%) less methods β—‹ 4,352 (40%) less classes using reflection β—‹ 827 (81%) less fields using reflection β—‹ 8,099 (63%) less methods using reflection A Real Example

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@edeandrea https://www.redhat.com/en/resources/greener-java-applications-detail Setup 🀘 AWS (us-east-1) 🀘 SLA > 99% 🀘 800 req/sec over 20 days 🀘 50% load The Cost / Carbon Impact

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@edeandrea Thank You!