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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

Cache capacity

Dynamic randomly accessed memory (DRAM) is very slow. This can result in very different performance results during benchmarking.

There are two suggested strategies to this pitfall:

  • Run multiple benchmarks with varying problem sets. Keep track of your memory footprint during tests.
  • Use the @State annotation to dictate the JMH state. This annotation is sued to define the instance's scope. There are three states:
    • Scope.Benchmark: The instance is shared across all threads that are running the same test.
    • Scope.Group: One instance is allocated per thread group.
    • Scope.Thread: Each thread will have its own instance. This is the default state.
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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page