Java 17 Linux !free! -

curl -s "https://get.sdkman.io" | bash source "$HOME/.sdkman/bin/sdkman-init.sh" sdk install java 17.0.10-tem sdk default java 17.0.10-tem The Linux kernel behaves differently than macOS or Windows. Here are three critical JVM flags for production: 1. Use -XX:+UseContainerSupport (Enabled by default in Java 17) Java 17 correctly detects cgroup v1 and v2 memory limits. Do not set -Xmx manually unless you understand the heap. 2. Set -XX:ActiveProcessorCount On shared Linux servers, the JVM may see all host CPUs. Limit it:

Then:

java -XX:ActiveProcessorCount=2 -jar myapp.jar For large heaps (>8GB), tell the JVM to use Linux's THP: java 17 linux

# Check if THP is enabled (should be 'always' or 'madvise') cat /sys/kernel/mm/transparent_hugepage/enabled java -XX:+UseTransparentHugePages -jar app.jar Step 5: Running as a Linux Service (systemd) Do not run Java apps with nohup or & . Use a proper systemd unit. curl -s "https://get

Published: April 14, 2026 | Category: DevOps / Backend Development Do not set -Xmx manually unless you understand the heap

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