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Sanyou's Java Diary
Sanyou's Java Diary
Jul 24, 2025 · Backend Development

Why Upgrading to JDK 17 with ZGC Can Slash Costs and Boost Performance

This article explains how moving from Java 8 to JDK 17—leveraging new language features, updated APIs, and the ZGC garbage collector—can dramatically improve service latency, reduce GC pauses, lower machine costs, and enable AI SDKs that require Java 17, while also detailing migration steps and performance results.

GarbageCollectionJavaPerformancejdk17
0 likes · 31 min read
Why Upgrading to JDK 17 with ZGC Can Slash Costs and Boost Performance
Cognitive Technology Team
Cognitive Technology Team
Feb 16, 2025 · Operations

Resolving High Memory Utilization after Upgrading to JDK 11 with G1GC: Causes, Analysis, and Tuning Guide

After upgrading to JDK 11 and switching to G1GC, the author observed memory usage exceeding 90% due to G1 Old GC not reclaiming space, and provides a detailed analysis of the issue, including heap inspection, GC mechanisms, and practical tuning solutions such as adjusting heap size and G1GC parameters.

GC tuningJDK11JavaPerformance
0 likes · 33 min read
Resolving High Memory Utilization after Upgrading to JDK 11 with G1GC: Causes, Analysis, and Tuning Guide