# 1️⃣ Clone the demo repo
git clone https://github.com/openjdk/mimk-054-demo.git
cd mimk-054-demo
# 2️⃣ Build with Gradle (incremental)
./gradlew clean build
# 3️⃣ Run the virtual‑thread server
java -jar build/libs/loom-echo-server.jar
# 4️⃣ Build native image (requires GraalVM)
./mvnw -Pnative package
./target/loom-native-app
Below are the exact snippets Dr. Hsu typed in the video (cleaned up for readability).
If you’re looking to future‑proof your media stack, download the build today and let the numbers speak for themselves.
Happy streaming! 🚀
Published on 9 January 2021
Reading time: ~2 minutes
This title reads like a timestamped object: a code that compresses place, format, and a sliver of time. Treating it as an artifact lets us interrogate what such a string means and why it matters. Below are three concise, structured perspectives—contextual, interpretive, and practical—designed to help you engage with the piece whether you’re a listener, creator, archivist, or curator. MIMK-054-EN-JAVHD-TODAY-0901202101-58-02 Min
Prerequisite: Java 17 JDK (or newer) installed, and a machine with at least AVX‑512 capable CPU for the full hardware‑acceleration path.
# 1️⃣ Pull the artifact from our Maven repository
mvn dependency:get \
-Dartifact=com.mimk:javhd-engine:054.2021.01.09:jar
# 2️⃣ Verify the checksum (optional but recommended)
shasum -a 256 ~/.m2/repository/com/mimk/javhd-engine/054.2021.01.09/javhd-engine-054.2021.01.09.jar
# 3️⃣ Run the benchmark suite (the 58‑02 Min test)
java -jar javhd-engine-054.2021.01.09.jar \
--benchmark \
--duration=120s \
--output=benchmark-report.json
The benchmark will spin up a synthetic 4K @ 60 fps stream, process it through the zero‑copy pipeline, and write a JSON report with latency, CPU, and memory metrics. # 1️⃣ Clone the demo repo git clone https://github
Result snapshot (expected):
| Metric | Value | |--------|-------| | Avg. processing latency | 4.3 ms | | CPU utilization (single core) | 71 % | | Memory footprint | 212 MiB | | Total runtime (benchmark) | 1 min 58 s | Below are the exact snippets Dr
| Timestamp | Segment | Core Content |
|-----------|---------|--------------|
| 00:00‑03:30 | Intro & Context | Why “HD” matters today; market pressure from micro‑services & serverless; Java’s 27‑year evolution story. |
| 03:31‑12:00 | Java Language Refresh | Deep dive into sealed hierarchies, records & pattern matching; live coding: converting a classic POJO hierarchy into a sealed‑record model. |
| 12:01‑20:15 | Build‑Tool Revolution | Gradle 7.x incremental compilation vs. Maven 3.9; demo of ./gradlew assemble hitting < 1 sec for a 30‑module project. |
| 20:16‑29:45 | Concurrency Re‑imagined – Project Loom | Virtual threads vs. platform threads; benchmarking a 10 k‑connection HTTP server (Loom ≈ 30 % lower CPU). |
| 29:46‑38:30 | Native Image with GraalVM | End‑to‑end creation of a native Spring‑Boot micro‑service; cold start drops from 1.8 s → 48 ms. |
| 38:31‑45:20 | Reactive & Event‑Driven | Micronaut + RxJava vs. traditional CompletableFuture; why reactive remains relevant in a Loom‑enabled world. |
| 45:21‑53:00 | Observability – JFR & OpenTelemetry | One‑line JFR enablement, custom events, exporting to OTEL collector; real‑time dashboards demo. |
| 53:01‑58:02 | Wrap‑Up & Q&A | Future roadmap (Project Valhalla, Panama), best‑practice checklist, where to find the source repo. |