Java
Understanding JVM Memory Management
A deep dive into Java stack memory, heap memory, metaspace, and how garbage collection actually reclaims objects.
3 min read
Tag
JVM
7 articles
Java
String Internals: Pooling, Compact Strings, and Concatenation
Strings look like the simplest type in Java, but the string pool, compact string encoding, and concatenation strategy all affect memory and speed directly.
3 min read
Twitter
From Ruby to the JVM: Twitter's Finagle Bet
Why the Fail Whale era pushed Twitter off a Ruby on Rails monolith toward JVM services and Finagle, its shared asynchronous RPC framework.
3 min read
Java
ClassLoaders Demystified
ClassLoaders quietly decide how your code finds classes, why two copies of the same class can coexist, and why app servers leak metaspace.
3 min read
Java
How the JIT Compiler Actually Optimizes Your Code
The JVM doesn't run your bytecode as-is for long. Here's what C1, C2, and tiered compilation actually do, and why your benchmarks lie without warmup.
3 min read
Java
Practical Tuning Signals for G1 and ZGC
Most GC tuning advice is cargo culted flags copied from a blog post. Here's how to read the actual signals before you touch anything.
3 min read
Java
Virtual Threads in Java: What Actually Changes
Virtual threads remove the cost of blocking, not the need for careful concurrency design. Here's exactly what improves and what stays your problem.
3 min read