JavaPins - Stories tagged with Performance
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High Performance Mobile Websites

published 331 days, 8 hours, 21 minutes ago posted by vasantvasant 361 days, 9 hours, 16 minutes ago
Wednesday, May 22, 2013 9:50:14 AM GMT Monday, April 22, 2013 8:55:24 AM GMT
Last night was the first meeting of the meetup group for Mobile Web. The presentation was on High Performance Mobile Websites. It was great so see so many people turn up to our very first meeting. I found it personally a great opportunity to swap stories with people. I particularly loved hearing about what people had done on other projects and the problems they had. The talk was on High Performance Mobile Websites: (more)
category: Smart Client | clicked: 1 | comment | | source: blog.jamesdbloom.com
tags: High, Mobile, Performance, Websites
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Hibernate and JPA guidelines [part 1] « Java Team at Kentor

published 507 days, 3 hours, 47 minutes ago posted by anujaanuja 538 days, 10 hours, 30 minutes ago
Tuesday, November 27, 2012 2:24:55 PM GMT Saturday, October 27, 2012 7:41:49 AM GMT
I recently had a cooperation with some colleagues from the Oracle team, putting together a document with some guidelines and tips for working with Hibernate/JPA and Oracle from a performance point of view. I decided to take some of these general guidelines and tips for Hibernate/JPA to do a three part serie with blogposts here on our blog. Each topic is divided into three parts; problem, suggestion and value. Each topic evolves from a identified problem and then makes a suggestion for dealing with the pr... (more)
category: ORM | clicked: 19 | comment | | source: kentorjava.com
tags: guidelines, Hibernate, Java, JPA, Performance
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Hibernate and JPA guidelines [part 3] « Java Team at Kentor

published 507 days, 3 hours, 47 minutes ago posted by anujaanuja 538 days, 10 hours, 31 minutes ago
Tuesday, November 27, 2012 2:24:55 PM GMT Saturday, October 27, 2012 7:40:43 AM GMT
This is the last post of three with Hibernate/JPA guidelines. This post consists more of some tips and trix rather then general guidelines. As I wrote in previous posts each topic is divided into three parts; problem, suggestion and value. All topics evolves from a identified problem and then makes a suggestion for dealing with the problem and a value for what benefits you get from using the suggestion. Solving LAZY FetchType for OneToOne relations (more)
category: ORM | clicked: 3 | comment | | source: kentorjava.com
tags: guidelines, Hibernate, Java, JPA, Performance
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Improving Performance of Spring Applications

published 540 days, 29 minutes ago posted by anishaanisha 577 days, 22 hours, 13 minutes ago
Thursday, October 25, 2012 5:42:37 PM GMT Monday, September 17, 2012 7:59:01 PM GMT
Learn how to improving the performance of your Spring applications with a pragmatic look on how to achieve easy gains through caching. This video analyzes the usual bottlenecks found in common application stacks and ways to address them. Various caching patterns are discussed focusing on both performance and scalability. (more)
category: Spring | clicked: 45 | comment | | source: www.java-tv.com
tags: improvement, Performance, spring application
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Stas's blog: JCaptcha, SecureRandom & performance

published 577 days, 22 hours, 37 minutes ago posted by anishaanisha 577 days, 23 hours, 42 minutes ago
Monday, September 17, 2012 7:34:32 PM GMT Monday, September 17, 2012 6:29:27 PM GMT
Personally, I'm not big fan of JCaptcha library and recently was lucky enough to find another problem there. The problem is related mostly to linux and it's implementation of java.security. SecureRandom, which is known to be slow and is locking on every call to it. (more)
category: Java EE | clicked: 0 | comment | | source: stas-blogspot.blogspot.in
tags: JCaptcha, Performance, SecureRandom
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Mechanical Sympathy: Java Sequential IO Performance

published 590 days, 12 minutes ago posted by anishaanisha 591 days, 56 minutes ago
Wednesday, September 05, 2012 6:00:00 PM GMT Tuesday, September 04, 2012 5:15:33 PM GMT
Many applications record a series of events to file-based storage for later use.  This can be anything from logging and auditing, through to keeping a transaction redo log in an event sourced design or its close relative CQRS. (more)
category: Java EE | clicked: 3 | comment | | source: mechanical-sympathy.blogspot.gr
tags: IO, Java, Performance
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Vanilla #Java: Avoiding Java Serialization to increase performance

published 597 days, 23 hours, 39 minutes ago posted by anishaanisha 599 days, 2 hours, 52 minutes ago
Tuesday, August 28, 2012 6:32:53 PM GMT Monday, August 27, 2012 3:19:37 PM GMT
Many frameworks for storing objects in an off-line or cached manner, use standard Java Serialization to encode the object as bytes which can be turned back into the original object. Java Serialization is generic and can serialise just about any type of object. (more)
category: Java EE | clicked: 7 | comment | | source: vanillajava.blogspot.in
tags: Java, Performance, Serialization
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10 Application Performance Tuning Tips

published 614 days, 6 hours, 52 minutes ago posted by pankajsharmapankajsharma 615 days, 4 hours, 45 minutes ago
Sunday, August 12, 2012 11:19:35 AM GMT Saturday, August 11, 2012 1:26:15 PM GMT
As a consultant I have been doing performance analysis and optimization of enterprise applications (mainly Java) for more than a decade. In this time I have learned that there are some common “best practices” that everybody should follow, so that most of the problems I’ve seen during my troubleshooting assignments could have been avoided. As the following 10 rules only reflect my experience... (more)
category: JAVA | clicked: 28 | comment | | source: blog.codecentric.de
tags: Performance, Tuning
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Part 1: Smart object-management saves the day - JavaWorld

published 642 days, 4 hours, 36 minutes ago posted by pankajsharmapankajsharma 643 days, 3 hours, 13 minutes ago
Sunday, July 15, 2012 1:36:06 PM GMT Saturday, July 14, 2012 2:58:42 PM GMT
Objects are a powerful software engineering construct, and Java uses them extensively. In fact, it encourages the use of objects so much that developers sometimes forget the costs behind the construct. The result can be object churn, a program state in which most of your processor time is soaked up by repeatedly creating and then garbage collecting objects. (more)
category: JAVA | clicked: 4 | comment | | source: www.javaworld.com
tags: Object Management, Performance
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The smart approach to distributed performance monitoring with Java - JavaWorld

published 642 days, 4 hours, 36 minutes ago posted by pankajsharmapankajsharma 643 days, 3 hours, 20 minutes ago
Sunday, July 15, 2012 1:36:06 PM GMT Saturday, July 14, 2012 2:51:34 PM GMT
f you're developing distributed applications, you probably want to measure the performance characteristics of your applications to find out which remote methods -- on which objects, on which machines -- take longest to run. To accomplish this, you could use a distributed profiling tool, but such products tend to be expensive and difficult to configure. (more)
category: JAVA | clicked: 7 | comment | | source: www.javaworld.com
tags: distributed systems, Performance, rmi
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Solving common Java EE performance problems - JavaWorld

published 646 days, 23 hours, 33 minutes ago posted by pankajsharmapankajsharma 650 days, 5 hours, 4 minutes ago
Tuesday, July 10, 2012 6:38:29 PM GMT Saturday, July 07, 2012 1:07:20 PM GMT
Java EE (Java Platform, Enterprise Edition) applications, regardless of the application server they are deployed to, tend to experience the same sets of problems. As a Java EE tuner, I have been exposed to a variety of environments and have made some observations about common problems. In this capacity, I see my role as similar to that of an automobile mechanic: you tell your mechanic that the engine is chirping; then he asks you a series of questions that guide you in quantifying the nature, location, a... (more)
category: Java EE | clicked: 8 | comment | | source: www.javaworld.com
tags: JavaEE, Performance
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JAXBContext Performance Problem

posted by pankajsharmapankajsharma 657 days, 16 hours, 40 minutes ago
Saturday, June 30, 2012 1:31:59 AM GMT
This case study describes the complete root cause analysis and resolution of a performance problem (major slowdown and contention under heavy load) that we faced following a migration our Web Service integration layer from Oracle Weblogic 8.1 Web Service RPC to Oracle Weblogic 11g & JAXB 2.0. This article will also demonstrate how you can generate and analysis JVM Thread Dump snapshots to pinpoint the source of high CPU and IO contention from Java code. Environment specifications ·         Java EE s... (more)
category: Web Service | clicked: 0 | comment | | source: javaeesupportpatterns.blogspot.com
tags: Context, JAXB, Performance
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Java Obsession: Figure out why is JAVA eating CPU?

posted by tracytracy 679 days, 14 hours, 31 minutes ago
Friday, June 08, 2012 3:41:00 AM GMT
n a production environment profiling is not an option, we have seen several times that our CPU has reached almost 100%, we are running tomcat on Redhat 5.5, so what is happening? Fortunately, java comes with some great debugging tools, cooperating those tools with Linux built-in tools will let you know what is happening. (more)
category: JAVA | clicked: 0 | comment | | source: javadrama.blogspot.com
tags: Java, Performance
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Vanilla #Java: How to get C like performance in Java

posted by tracytracy 679 days, 15 hours, 8 minutes ago
Friday, June 08, 2012 3:03:43 AM GMT
Java has many areas which can be slow. However for every problem there is a solution. Many solutions/hacks require working around Java's protections but if you need low level performance it is still possible. (more)
category: JAVA | clicked: 0 | comment | | source: vanillajava.blogspot.com
tags: Java, Performance
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Java Persistence Performance: How to improve JPA performance

posted by tracytracy 679 days, 15 hours, 23 minutes ago
Friday, June 08, 2012 2:48:19 AM GMT
The Java Persistence API (JPA) provides a rich persistence architecture. JPA hides much of the low level dull-drum of database access, freeing the application developer from worrying about the database, and allowing them to concentrate on developing the application. However, this abstraction can lead to poor performance, if the application programmer does not consider how their implementation affects database usage. (more)
category: JAVA | clicked: 0 | comment | | source: java-persistence-performance.blogspot.com
tags: Java, JPA Framework, Performance, Persistence
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True power of Java EE and JMS: distributed computations!

published 682 days, 4 hours, 2 minutes ago posted by pankajsharmapankajsharma 682 days, 18 hours, 44 minutes ago
Tuesday, June 05, 2012 2:09:37 PM GMT Monday, June 04, 2012 11:27:50 PM GMT
As you already know I'm writing a PhD about evaluating and measuring quality of Web Services compositions. In my system I focus on evaluating WS-BPEL processes (but the framework I designed is extremely flexible and supports any business scenario technology). The system (called Measurement System DIES) is a Java EE application. It is designed in a distributed manner which makes scaling out and distributing computations very easy. (more)
category: Java EE | clicked: 5 | comment | | source: jee-bpel-soa.blogspot.com
tags: ActiveMQ, geronimo, JavaEE, jms, Performance
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Securing JMX Access in JBoss at Uptime & Performance Tips

published 683 days, 2 hours, 42 minutes ago posted by pankajsharmapankajsharma 683 days, 15 hours, 3 minutes ago
Monday, June 04, 2012 3:29:40 PM GMT Monday, June 04, 2012 3:08:14 AM GMT
Securing the JMX Console JBoss makes it really easy to secure the management applications – as easy as flipping a few switches (the hard part, of course, is finding the switches that need flipping). Here are the steps: Step 1. Go to the $JBOSS_HOME/common/deploy/jmx-console.war/WEB-INF Step 2. Modify web.xml to uncomment the security-constraint element: (more)
category: Java EE | clicked: 2 | comment | | source: blog.monitis.com
tags: JBoss, JMX, Performance, security
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JSF and MyFaces Hints and Tips: Understanding JSF 2 and Wicket: Performance Comparison

published 684 days, 2 hours, 2 minutes ago posted by pankajsharmapankajsharma 684 days, 3 hours, 52 minutes ago
Sunday, June 03, 2012 4:09:20 PM GMT Sunday, June 03, 2012 2:19:42 PM GMT
Performance is important in a web framework, even though it is certainly not the only consideration. But anyway, it is a topic that deserves an in-deep analysis. This is not a topic that can be reduced to just some few numbers, instead, web frameworks try to make a balance performance and other aspects like usability, extensibility, and much more. In the last year (2011-2012), a lot of performance improvements has been done inside Apache MyFaces JSF Implementation (aka MyFaces Core). To see how good are... (more)
category: JSF | clicked: 3 | comment | | source: lu4242.blogspot.com
tags: JSF, Performance, Wicket
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JPA Under The Hood – Understanding the Dynamics of Your JPA Framework about:performance

published 703 days, 8 hours, 18 minutes ago posted by vinaykumarvinaykumar 704 days, 5 hours, 52 minutes ago
Tuesday, May 15, 2012 9:53:41 AM GMT Monday, May 14, 2012 12:19:34 PM GMT
Tweet I recently gave a talks on the behaviour of different JPA frameworks at W-JAX(Germany) and TheServerSide Java Symposium (Prague). As some people have asked me, I am publishing the samples as well. I would also give away the eclipse project, however with all the third party libraries I am sure I will end up not doing it legally correct. Additionally I can add some comments on the samples and why they are as they are . The goal of my experiment was to compare different JPA frameworks regarding the... (more)
category: ORM | clicked: 4 | comment | | source: blog.dynatrace.com
tags: JPA Framework, Performance
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Java Collection Performance

published 712 days, 2 hours, 51 minutes ago posted by pankajsharmapankajsharma 717 days, 21 hours, 12 minutes ago
Sunday, May 06, 2012 3:20:32 PM GMT Monday, April 30, 2012 8:59:46 PM GMT
If you have never heard about such a topic, here is the chance, otherwise it’s the hundredth time you see such title, and you are probably thinking “Another article about this topic, I’ll probably not learn anything new, but anyway I’m bored so I’m gonna read it …”. And you are probably 90% right, nothing really new here, but I promise you a couple of colorful and beautiful charts that we don’t have the opportunity to see everyday (and the ability to create your own) . (more)
category: JAVA | clicked: 13 | comment | | source: leolewis.website.org
tags: Collection, Java, Performance
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