Read e-book online Optimizing Java PDF

By Benjamin J. Evans, James Gough

At the moment, no books exist that concentrate on the practicalities of Java software functionality tuning, in preference to the speculation and internals of Java digital machines. This functional consultant is the "missing link" that goals to maneuver Java functionality tuning from the area of guesswork and folklore to an experimental science.

Learn find out how to strategy functionality difficulties in an constant and systematic means; get to the bottom of construction functionality concerns by means of studying center Java functionality issues; establish and unravel functionality matters prior to encountering them in creation; comprehend the functionality difficulties you stumble upon by means of studying the Java platform's internals.

Show description

Read or Download Optimizing Java PDF

Best software development books

The Phoenix Project: A Novel About IT, DevOps, and Helping - download pdf or read online

Invoice is an IT supervisor at components limitless. It's Tuesday morning and on his force into the place of work, invoice will get a choice from the CEO.

The company's new IT initiative, code named Phoenix venture, is necessary to the way forward for components limitless, however the venture is hugely over funds and extremely overdue. The CEO desires invoice to file on to him and attach the mess in 90 days in any other case Bill's complete division should be outsourced.

With assistance from a potential board member and his mysterious philosophy of the 3 methods, invoice begins to work out that IT paintings has extra in universal with production plant paintings than he ever imagined. With the clock ticking, invoice needs to set up paintings stream streamline interdepartmental communications, and successfully serve the opposite enterprise features at elements limitless.

In a fast moving and enjoyable type, 3 luminaries of the DevOps flow convey a narrative that any one who works in it is going to realize. Readers won't merely find out how to increase their very own IT firms, they'll by no means view IT a similar method back.

Jason Cole, Helen Foster's Using Moodle : teaching with the popular open source course PDF

Utilizing Moodle is a whole, hands-on advisor for teachers studying tips on how to use Moodle, the preferred direction administration approach (CMS) that allows distant web-based studying and vitamins conventional lecture room studying. up to date for the most recent model, this re-creation explains precisely how Moodle works by way of delivering lots of examples, screenshots and top practices for its many positive aspects and plug-in modules.

Read e-book online Grundkurs Software-Engineering mit UML: Der pragmatische Weg PDF

Software-Projekte scheitern aus den unterschiedlichsten Gründen. Dieses Buch zeigt anhand der systematischen examine von Chancen und Risiken, wie die Wege zu erfolgreichen Software-Projekten aussehen. Ausgehend von der foundation, dass das Zusammenspiel aller an einem Projekt Beteiligten in Prozessen koordiniert werden soll, wird mit Hilfe der UML (Unified Modeling Language) der Weg von den Anforderungen über die Modellierung bis zur Implementierung beschrieben.

Microsoft Expression Blend 4 Unleashed - download pdf or read online

This ebook isn't really approximately XAML, no longer approximately code nor specific paintings flows. it truly is approximately easily dragging, losing, drawing, and defining the event and imaginative and prescient for a person interface and wealthy interactive adventure. you'll tips on how to paintings with the middle gains of mixture, edit kinds and Templates, and extra importantly, comprehend what all of them suggest.

Extra resources for Optimizing Java

Example text

This is a very important topic that we will return to later in the book, in Chapter 12. There has been a trend in recent years for software developers to seek greater understanding of the workings of hardware in order to derive better performance. The term “Mechanical Sympathy” has been coined by Martin Thompson and others to describe this approach, especially as applied to the low-latency and high-performance spaces. It can be seen in recent research into lock-free algorithms and data structures, which we will meet towards the end of the book.

1. The first two columns show the number of runnable and blocked processes. 2. In the memory section, the amount of swapped and free memory is shown, followed by the memory used as buffer and as cache. 3. The swap section shows the memory swapped from and to disk. Modern server class machines should not normally experience very much swap activity. 4. The block in and block out counts (bi and bo) show the number of 512byte blocks that have been received from, and sent to a block (I/O) device. 5.

This can lead to another thread starting to execute and accessing an object before the original thread had finished processing it, potentially seeing the object in a damaged or invalid state. The only defence the core of Java provides against this potential object damage during concurrent code execution is the mutual exclusion lock, and this can be very complex to use in real applications. Chapter 12 contains a detailed look at how the JMM works, and the practicalities of working with threads and locks.

Download PDF sample

Rated 4.75 of 5 – based on 20 votes

About the Author

admin