Contended locks explained – a performance approach
Context Improving the performance of contended Java object monitors was added in JDK 9 as part of the JEP 143. However, as JEP 143 states, it might not be…
An even faster way than StackWalker API for asynchronously processing the stack frames
Context StackWalker API has been introduced in JDK 9 as part of JEP 259. It targets a flexible mechanism to traverse and materialize the required stack frames allowing efficient…
Getting the stack trace versus throwing an Exception. What is common and what is different
Motivation At the first glance these two things (e.g. getting the stack traces and throwing an exception) might seem very unrelated, however, they are quite similar up to a…
Compact Strings feature might slow down predominant UTF-16 Strings applications
Motivation Current article aims to reveal how Compact Strings feature added in JDK 9 with JEP 254 behaves in case of applications where the Strings are predominant UTF-16. Context As…
onSpinWait() method from Thread class
Introduction The purpose of this article is to describe new method onSpinWait() added to Thread class in JDK 9, including its usage, the pros and cons and also covering few…