Search Results

Search found 12499 results on 500 pages for 'business analysis'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 28/500 | < Previous Page | 24 25 26 27 28 29 30 31 32 33 34 35  | Next Page >

  • Deadlock Analysis in NetBeans 8

    - by Geertjan
    Lock contention profiling is very important in multi-core environments. Lock contention occurs when a thread tries to acquire a lock while another thread is holding it, forcing it to wait. Lock contentions result in deadlocks. Multi-core environments have even more threads to deal with, causing an increased likelihood of lock contentions. In NetBeans 8, the NetBeans Profiler has new support for displaying detailed information about lock contention, i.e., the relationship between the threads that are locked. After all, whenever there's a deadlock, in any aspect of interaction, e.g., a political deadlock, it helps to be able to point to the responsible party or, at least, the order in which events happened resulting in the deadlock. As an example, let's take the handy Deadlock sample code from the Java Tutorial and look at the tools in NetBeans IDE for identifying and analyzing the code. The description of the deadlock is nice: Alphonse and Gaston are friends, and great believers in courtesy. A strict rule of courtesy is that when you bow to a friend, you must remain bowed until your friend has a chance to return the bow. Unfortunately, this rule does not account for the possibility that two friends might bow to each other at the same time. To help identify who bowed first or, at least, the order in which bowing took place, right-click the file and choose "Profile File". In the Profile Task Manager, make the choices below: When you have clicked Run, the Threads window shows the two threads are blocked, i.e., the red "Monitor" lines tell you that the related threads are blocked while trying to enter a synchronized method or block: But which thread is holding the lock? Which one is blocked by the other? The above visualization does not answer these questions. New in NetBeans 8 is that you can analyze the deadlock in the new Lock Contention window to determine which of the threads is responsible for the lock: Here is the code that simulates the lock, very slightly tweaked at the end, where I use "setName" on the threads, so that it's even easier to analyze the threads in the relevant NetBeans tools. Also, I converted the anonymous inner Runnables to lambda expressions. package org.demo; public class Deadlock { static class Friend { private final String name; public Friend(String name) { this.name = name; } public String getName() { return this.name; } public synchronized void bow(Friend bower) { System.out.format("%s: %s" + " has bowed to me!%n", this.name, bower.getName()); bower.bowBack(this); } public synchronized void bowBack(Friend bower) { System.out.format("%s: %s" + " has bowed back to me!%n", this.name, bower.getName()); } } public static void main(String[] args) { final Friend alphonse = new Friend("Alphonse"); final Friend gaston = new Friend("Gaston"); Thread t1 = new Thread(() -> { alphonse.bow(gaston); }); t1.setName("Alphonse bows to Gaston"); t1.start(); Thread t2 = new Thread(() -> { gaston.bow(alphonse); }); t2.setName("Gaston bows to Alphonse"); t2.start(); } } In the above code, it's extremely likely that both threads will block when they attempt to invoke bowBack. Neither block will ever end, because each thread is waiting for the other to exit bow. Note: As you can see, it really helps to use "Thread.setName", everywhere, wherever you're creating a Thread in your code, since the tools in the IDE become a lot more meaningful when you've defined the name of the thread because otherwise the Profiler will be forced to use thread names like "thread-5" and "thread-6", i.e., based on the order of the threads, which is kind of meaningless. (Normally, except in a simple demo scenario like the above, you're not starting the threads in the same class, so you have no idea at all what "thread-5" and "thread-6" mean because you don't know the order in which the threads were started.) Slightly more compact: Thread t1 = new Thread(() -> { alphonse.bow(gaston); },"Alphonse bows to Gaston"); t1.start(); Thread t2 = new Thread(() -> { gaston.bow(alphonse); },"Gaston bows to Alphonse"); t2.start();

    Read the article

  • Where to start a software Analysis & Designing?

    - by Muneer
    I am starting a big database oriented software to develop. I have full picture of the software in mind. I need to do the designing using UML. As there are various tools in UML such as usecase, class diagram, statechart, component diagram, deployment diagram, activity diagram and so on, where should I start my designing. Should it be from Usecase or from Class Diagram or from State Chart? which wich approach will help me to put my mind's picture in to design.? Please corporate with me. Thanks.

    Read the article

  • Reminder: Java EE 7 Job Task Analysis Survey – Participants Needed

    - by Brandye Barrington
    Java EE Developers/Practitioners, Recruiters, Managers Hiring Java EE Developers: Our Survey Continues.  We're looking to you to directly help shape the scope and definition of two new Java EE 7 Certification exams. We'll soon begin certifying front-end and/or server-side enterprise developers who use Java. We're therefore interested in those of you who:  are currently working with Java EE 7 technology or have plans to develop with Java EE 7 in the near future. have 2-4 years experience with the previous Java EE technology versions. are recruiting and/or hiring candidates to develop Java EE 7 applications. are technically savvy and able to articulate the skills and knowledge required to successfully staff Java Enterprise Edition front-end and server-side projects.

    Read the article

  • Local Search Engine Optimization Tips For Small Business

    Having a well optimized website is a important key factor any small business that's targeting their local market. Coming up with a strategy or game plan will help get your products and services seen by your prospective buyers. Here's few tips to help optimize your small business website and promote your company website.

    Read the article

  • The first in-depth technical analysis of VP8

    <b>Diary Of An x264 Developer:</b> "Back in my original post about Internet video, I made some initial comments on the hope that VP8 would solve the problems of web video by providing a supposed patent-free video format with significantly better compression than the current options of Theora and Dirac."

    Read the article

  • E-Business Suite at Oracle OpenWorld 2007

    Listen to Annette Melatti, Sr. Director in Applications Marketing for E-Business Suite, preview some of the key sessions, improved attendee tools, and, most importantly, the highlights for E-Business Suite at Oracle OpenWorld 2007.

    Read the article

  • More about E-Business Suite Certifications

    - by Sadia2
    E-Business Suite certifications contained in My Oracle Support are modeled at the suite-level only. All products packaged within the Rapid Install release bundle follow the certification for that E-Business Suite release. Platform-specific certification exceptions are documented in the Installation and Upgrade Notes for each platform, available as links from the following Oracle Applications Documentation Resources notes: Oracle Applications Documentation Resources, Release 12 (Doc ID 394692.1) Oracle Applications Documentation Resources, Release 12.1 (Doc ID 790942.1)

    Read the article

  • Small Business Software: OpenOffice.org vs. Google Docs

    <b>Small Business Computing:</b> "Microsoft is getting ready to ship Office 2010, but a lot of small businesses realize they don't need all the features (or licensing costs) that come with Microsoft Office. The front-runners for Office replacements are OpenOffice.org and Google Docs, but which one is right for your business?"

    Read the article

  • 5 Reasons Why SEO Can Multiply Small Business Profits

    If you own a small business that is focused online or even if you own a small business in the real world learning how to use SEO on your website can be the key to multiplying your profits. This is due to the fact that proper SEO will increase the amount of traffic that your website receives; which in turn will increase the annual profits that you make.

    Read the article

  • Can Search Engine Optimization Actually Help Your Online Business

    Search engine optimization or SEO is a concept that has come about in the internet world and it sure enough is a concept that is guaranteed to save a dying website in no time. If you have heard quite a bit about search engine optimization and how best it can save your business from going down the drain but do not know how can utilize the service to save your online business, then you have come to the right place because, here, you are going to find out about some very important information that will help you understand this particular concept better.

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 24 25 26 27 28 29 30 31 32 33 34 35  | Next Page >