INDUSTRY INSIGHTS YOUR PEERS ARE READING
java performance maven logging gradle java performance cucumber testng custom framework listenersIn my past articles, I’ve written about using custom listeners as part of getting the desired reporting or making your tests do what you want. MORE
performance api java development vert.xIn the previous part of the series, we took a closer look at the event loop model. In this article, we are going to discuss several techniques that help you to prevent event loop delays. The causes of event loop delays can be divided into two categories. The first category contains event loop delays caused by a handler calling a blocking API. The second category covers delays caused by a handler code taking a great amount of CPU time to complete. MORE
java performance jvm faq parallelism consumer producer patternIn general, there are two ways to achieve parallelism in your application. As always, both solutions have pros and cons and their core use cases are absolutely different. MORE
java performance scalability latency cpu grpc rpc qpsAlmost every time I present RSocket to an audience, there will be someone asking the question: "How does RSocket compare to gRPC?" " Today we are going to find out. MORE
From the post: Are the Java vulnerabilities actually C and C++ vulnerabilities? You’ve probably seen the headlines: [US-CERT] Java in Web Browser: Disable Now! We’ve been telling people to disable Java for years. … This should be enough motivation for you to turn Java off. MORE
performance java development vert.x In the previous entry to this series, we reviewed several techniques that help you to prevent event loop delays; however, even the best programmer makes mistakes. What should you do when your Vert.x application doesn't perform as expected? MORE
The Dynatrace OneAgent will automatically instrument most frameworks in Java,NET, Node.js, PHP, and Golang. Any programming language able to make HTTP requests – such as Python, Java or bash – would be good for this purpose. Dynatrace news. MORE
What happens when you run a Java application without checking your hardware configuration? java jdk openjdk benchmark nodes performanace jdk11 flag numa lagObviously, your application lags in terms of performance. MORE
java performance jvm memory error heap dump arguments outofmemoryerrorThe JVM has provided helpful arguments to deal with OutOfMemoryError. In this article, we would like to highlight those JVM arguments. It might come handy for you when you are troubleshooting OutOfMemoryError. Those JVM arguments are: -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath. -XX:OnOutOfMemoryError. XX:OnOutOfMemoryError. -XX:+ExitOnOutOfMemoryError. XX:+ExitOnOutOfMemoryError. -XX:+CrashOnOutOfMemoryError. MORE
java performance mobile applicationShould I be running my application with few instances (i.e. machines) with large memory size or a lot of instances with small memory size? Which strategy is optimal? This question might be confronted often. After building applications for 2 decades, after building JVM performance engineering/troubleshooting tools ( GCeasy , FastThread , HeapHero ), I still don’t know the right answer to this question. MORE
Connecting With Java. Among the popular Redis Java clients , Jedis and Lettuce support Redis Clusters. Here’s the same program as the Java example above in Ruby: require 'redis' require 'pp' NODES = ["redis://SG-example-1.servers.scalegrid.io:6379", MORE
java performance jvm forecasting outofmemoryerror heap dump analysisEven unpredictable weather is forecasted. But after all these technological advancements, are we able to forecast our application performance and availability? Are we able to forecast even for the next 20 minutes? MORE
Most, if not all, Java and Android developers have come across logging requirements in their application. java performance kotlin logging logging frameworks tinylog MORE
You may already know that JUnit and Mockito are two of the most popular testing libraries for Java applications, and you will find them in almost every Java application classpath. I often meet and work with Java developers who know Java well but haven't written a single unit test. java performance testing tdd unit testing junit online courses mockito unit tests java for beginners MORE
Our world-class expert instructors provide free test automation training in multiple programming languages such as Java, JavaScript, C#, Python, Ruby, and Swift. java javascript python performance c# test automation developers automated testing qa MORE
Generally, a unit should be a small part of the application — in Java, it is often a single class. java performance testing unit testing best practices testing pyramid testing best practicesUnit testing is a well-known practice, but there's lots of room for improvement! MORE
java performance clean architecture hexagonal architecture object orientation layered architecture dci architecture MORE
java jvm jvm performance tuning q&a 32 bit 64 bitThere are a few distinct differences and subtle nuances between 32-bit JVM and 64-bit JVM. We thought we will try to clarify them through this question-and-answer article. MORE
But with Java, there's another way to visualize the same CPU workload which provides some additional insight: **a Java package flame graph**. Instead of visualizing the stack trace hierarchy, this visualizes the Java package name hierarchy. Here is a normal stack trace-based [CPU flame graph] for Java, running a microbenchmark ( SVG ): The y-axis is stack depth. How much CPU time was in java/util methods directly, excluding child functions calls? MORE
performance java programming vert.x This article is the first in a series of three articles which share my experience with troubleshooting the performance of Vert.x applications. The first article provides an overview of the Vert.x MORE
" java tdd unit testing junit bdd test driven developementIf you are developing using Test-Driven Development (TDD), there is a chance that you are doing it the wrong way. The symptoms of this are very clear. MORE
The following three topics are focused in this article: java performance junit testng selenium automation testing test automation framework parallel execution pairwise error MORE
Most Java developers have had to debug their applications, usually to find and fix an issue there. This is where JDWP (Java Debug Wire Protocol) comes into play. java performance jvm debugging remote debugging jdwp MORE
Or you can just cheat and do a “cast” What do you do in Java? However, Java offers a performance-oriented concept called a ByteBuffer to represent and array of bytes. Speaking for myself, I was going under the impression that Java would do a fine job reading from a byte array using an input stream. java performanceIt is common for binary data to be serialized to bytes. MORE
ArrayList and LinkedList are frequently used classes in the Java collection framework. java performance array linkedlist arraylist interview answers performance analysisIf you know only understand basic performance comparisons of ArrayList and LinkedList , but not the minor details of these two classes, then this article is for you. " ArrayList should be used where more search operations are required, and. MORE
Redis Cluster is the native sharding implementation available within Redis that allows you to automatically distribute your data across multiple nodes without having to rely on external tools and utilities. At ScaleGrid, we recently added support for Redis Clusters on our platform through our fully managed Redis hosting plans. MORE
java performance jvm blocking profiler tool blocking codeBlocking code is code which blocks executing threads until their operations finish. MORE
The following three topics are focused in this article: java performance junit testng selenium automation testing test automation framework parallel execution pairwise error MORE
For years, the debate has raged on regarding which programming language is better, Java or Scala. While some argue that just because Java is older it is better, others believe Scala is better for a variety of reasons. The Java program language was first introduced in 1995. MORE
How well does your Java perform? performance jvm streaming java performance iteration data stream for loop graal vm cleverIteration Performance. There are many views on how to iterate with high performance. MORE
Java was initially designed as a safe, managed environment. Nevertheless, Java HotSpot VM contains a “backdoor” that provides a number of low-level operations to manipulate memory and threads directly. HotSpot JVM direct memory management heap hot spot hotspot java jdk7 jv MORE
To install RavenDB using Docker follows the step below: java nosql performance memcached jakarta ee jakarta jnosqlMemcached is an easy-to-use, high-performance, in-memory data store. MORE
This chapter aims to remind the reader why Hibernate has its place in high-performance data access, and the table of content looks like this: java performance hibernate jpa java persistenceSecond Part, Chapter 8. Now that the first part of my book is published, it’s time to focus on the second part, which covers both JPA and Hibernate. MORE
The implementation is in core Java. Mowglee is a multi-threaded geo web crawler in Java. This article provides the implementation of a web crawling system called Mowglee that uses geography as the main classifying criteria for crawling. MORE
java server performance spring rest http junit mocking frameworksIntroduction. These days, our code frequently has to reach out to a remote server as part of its job, usually consuming an API or some other service. Frequently, our code communicates with these remote services in a RESTful manner. MORE
One of the best tools we have today for understanding application behavior and troubleshooting performance issues are Java profilers. Java profilers monitor JVM execution at the bytecode level and can provide information on thread execution and locks, heap memory usage, garbage collection, hot methods, exceptions, class loading, and more. How Java Profilers Work. java performance java performance app performance profilers java profilers MORE
In my previous article, I wrote about the Modularity System , which was introduced in Java 9. With this writing, I would like to continue the Java evolution line by taking a glance about the main Java 9 features according to the performance improvements. Java 9 Feature: Performance Improvements. In Java 9, the most significant performance upgrade was concerned with the Garbage Collection. java performance java 9 garbage collector new features MORE
What Are Java Profilers? A Java Profiler is a tool that monitors Java bytecode constructs and operations at the JVM level. java open source performance monitoring jvm process java performance process monitoringTo help equip you for the ongoing process of optimization and the life of debugging ahead of you, we’ve gathered a list of the best tools to monitor the JVM in both development and production environments. And the best part? MORE
java performance software testing selenium slack appium java script robot framework collabaoration MORE
java performance java concurrency happens before jcstress volatile fieldWhat fascinates me most about the volatile keyword is that it is still necessary, for me, because my software still runs on a silicon chip. Even if my application runs in the cloud on the JVM, despite all of those software layers abstracting away the underlying hardware, the volatile keyword is still needed due to the cache of the processor that my software runs on. MORE
java tips and tricks performance best practicesWhile solving issues related to NFRs (especially application performance), I always think about why we as developers give less importance (honorable exceptions are always there) to performance. Is this due to a lack of awareness? Many times, we start thinking of performance only at the time of a performance test or after deployment. MORE
tutorial performance integration docker java (programming lang The popularity of microservices and the use of third-party services for non-business critical features have drastically increased the number of integrations that make up the modern application. MORE
These pauses are sometimes called Stop-The-World pauses, and the minimization of them is the primary concern of GC tuning, as they can have a huge impact on the performance of a Java application. java tutorial performance garbage collection java performance tuning gc garbage collector heapGarbage collection is the mechanism by which the JVM reclaims memory on behalf of the application when it's no longer needed. MORE
It became very popular among Java/JVM developers because of the small learning curve and low codebase. java database tutorial nosql performance spring couchbase spring data indexes MORE
Java Related Topics DZone
SEPTEMBER 9, 2019
How well does your Java perform? performance jvm streaming java performance iteration data stream for loop graal vm cleverIteration Performance. There are many views on how to iterate with high performance.
DZone
APRIL 21, 2019
These pauses are sometimes called Stop-The-World pauses, and the minimization of them is the primary concern of GC tuning, as they can have a huge impact on the performance of a Java application. java tutorial performance garbage collection java performance tuning gc garbage collector heapGarbage collection is the mechanism by which the JVM reclaims memory on behalf of the application when it's no longer needed.
DZone
MAY 9, 2019
One of the best tools we have today for understanding application behavior and troubleshooting performance issues are Java profilers. Java profilers monitor JVM execution at the bytecode level and can provide information on thread execution and locks, heap memory usage, garbage collection, hot methods, exceptions, class loading, and more. How Java Profilers Work. java performance java performance app performance profilers java profilers
DZone
JULY 1, 2019
To install RavenDB using Docker follows the step below: java nosql performance memcached jakarta ee jakarta jnosqlMemcached is an easy-to-use, high-performance, in-memory data store.
DZone
JUNE 18, 2019
In my previous article, I wrote about the Modularity System , which was introduced in Java 9. With this writing, I would like to continue the Java evolution line by taking a glance about the main Java 9 features according to the performance improvements. Java 9 Feature: Performance Improvements. In Java 9, the most significant performance upgrade was concerned with the Garbage Collection. java performance java 9 garbage collector new features
DZone
APRIL 18, 2019
The implementation is in core Java. Mowglee is a multi-threaded geo web crawler in Java. This article provides the implementation of a web crawling system called Mowglee that uses geography as the main classifying criteria for crawling.
DZone
JULY 16, 2019
Most Java developers have had to debug their applications, usually to find and fix an issue there. This is where JDWP (Java Debug Wire Protocol) comes into play. java performance jvm debugging remote debugging jdwp
DZone
MAY 17, 2019
Generally, a unit should be a small part of the application — in Java, it is often a single class. java performance testing unit testing best practices testing pyramid testing best practicesUnit testing is a well-known practice, but there's lots of room for improvement!
DZone
AUGUST 16, 2019
ArrayList and LinkedList are frequently used classes in the Java collection framework. java performance array linkedlist arraylist interview answers performance analysisIf you know only understand basic performance comparisons of ArrayList and LinkedList , but not the minor details of these two classes, then this article is for you. " ArrayList should be used where more search operations are required, and.
DZone
JUNE 4, 2019
java tips and tricks performance best practicesWhile solving issues related to NFRs (especially application performance), I always think about why we as developers give less importance (honorable exceptions are always there) to performance. Is this due to a lack of awareness? Many times, we start thinking of performance only at the time of a performance test or after deployment.
DZone
JUNE 5, 2019
java performance jvm blocking profiler tool blocking codeBlocking code is code which blocks executing threads until their operations finish.
Alex Podelko
SEPTEMBER 4, 2018
For years, the debate has raged on regarding which programming language is better, Java or Scala. While some argue that just because Java is older it is better, others believe Scala is better for a variety of reasons. The Java program language was first introduced in 1995.
DZone
APRIL 18, 2019
What Are Java Profilers? A Java Profiler is a tool that monitors Java bytecode constructs and operations at the JVM level. java open source performance monitoring jvm process java performance process monitoringTo help equip you for the ongoing process of optimization and the life of debugging ahead of you, we’ve gathered a list of the best tools to monitor the JVM in both development and production environments. And the best part?
DZone
APRIL 18, 2019
This chapter aims to remind the reader why Hibernate has its place in high-performance data access, and the table of content looks like this: java performance hibernate jpa java persistenceSecond Part, Chapter 8. Now that the first part of my book is published, it’s time to focus on the second part, which covers both JPA and Hibernate.
Sutter's Mill
JANUARY 15, 2013
From the post: Are the Java vulnerabilities actually C and C++ vulnerabilities? You’ve probably seen the headlines: [US-CERT] Java in Web Browser: Disable Now! We’ve been telling people to disable Java for years. … This should be enough motivation for you to turn Java off.
Highly Scalable
FEBRUARY 2, 2012
Java was initially designed as a safe, managed environment. Nevertheless, Java HotSpot VM contains a “backdoor” that provides a number of low-level operations to manipulate memory and threads directly. HotSpot JVM direct memory management heap hot spot hotspot java jdk7 jv
Brendan Gregg
JUNE 30, 2017
But with Java, there's another way to visualize the same CPU workload which provides some additional insight: **a Java package flame graph**. Instead of visualizing the stack trace hierarchy, this visualizes the Java package name hierarchy. Here is a normal stack trace-based [CPU flame graph] for Java, running a microbenchmark ( SVG ): The y-axis is stack depth. How much CPU time was in java/util methods directly, excluding child functions calls?
DZone
JUNE 30, 2019
java performance software testing selenium slack appium java script robot framework collabaoration
DZone
JUNE 2, 2019
java performance scalability latency cpu grpc rpc qpsAlmost every time I present RSocket to an audience, there will be someone asking the question: "How does RSocket compare to gRPC?" " Today we are going to find out.
DZone
JULY 29, 2019
Our world-class expert instructors provide free test automation training in multiple programming languages such as Java, JavaScript, C#, Python, Ruby, and Swift. java javascript python performance c# test automation developers automated testing qa
DZone
AUGUST 28, 2019
java server performance spring rest http junit mocking frameworksIntroduction. These days, our code frequently has to reach out to a remote server as part of its job, usually consuming an API or some other service. Frequently, our code communicates with these remote services in a RESTful manner.
Dynatrace
JULY 10, 2019
The Dynatrace OneAgent will automatically instrument most frameworks in Java,NET, Node.js, PHP, and Golang. Any programming language able to make HTTP requests – such as Python, Java or bash – would be good for this purpose. Dynatrace news.
DZone
JULY 2, 2019
Most, if not all, Java and Android developers have come across logging requirements in their application. java performance kotlin logging logging frameworks tinylog
DZone
MAY 19, 2019
java performance java concurrency happens before jcstress volatile fieldWhat fascinates me most about the volatile keyword is that it is still necessary, for me, because my software still runs on a silicon chip. Even if my application runs in the cloud on the JVM, despite all of those software layers abstracting away the underlying hardware, the volatile keyword is still needed due to the cache of the processor that my software runs on.
DZone
MAY 13, 2019
java performance maven logging gradle java performance cucumber testng custom framework listenersIn my past articles, I’ve written about using custom listeners as part of getting the desired reporting or making your tests do what you want.
DZone
AUGUST 6, 2019
tutorial performance integration docker java (programming lang The popularity of microservices and the use of third-party services for non-business critical features have drastically increased the number of integrations that make up the modern application.
DZone
JUNE 26, 2019
The following three topics are focused in this article: java performance junit testng selenium automation testing test automation framework parallel execution pairwise error
DZone
MAY 6, 2019
It became very popular among Java/JVM developers because of the small learning curve and low codebase. java database tutorial nosql performance spring couchbase spring data indexes
Daniel Lemire
MARCH 18, 2019
Or you can just cheat and do a “cast” What do you do in Java? However, Java offers a performance-oriented concept called a ByteBuffer to represent and array of bytes. Speaking for myself, I was going under the impression that Java would do a fine job reading from a byte array using an input stream. java performanceIt is common for binary data to be serialized to bytes.
DZone
JULY 22, 2019
java jvm jvm performance tuning q&a 32 bit 64 bitThere are a few distinct differences and subtle nuances between 32-bit JVM and 64-bit JVM. We thought we will try to clarify them through this question-and-answer article.
DZone
MAY 9, 2019
What happens when you run a Java application without checking your hardware configuration? java jdk openjdk benchmark nodes performanace jdk11 flag numa lagObviously, your application lags in terms of performance.
DZone
JUNE 25, 2019
The following three topics are focused in this article: java performance junit testng selenium automation testing test automation framework parallel execution pairwise error
DZone
JUNE 10, 2019
java performance clean architecture hexagonal architecture object orientation layered architecture dci architecture
DZone
JULY 15, 2019
performance java programming vert.x This article is the first in a series of three articles which share my experience with troubleshooting the performance of Vert.x applications. The first article provides an overview of the Vert.x
DZone
AUGUST 12, 2019
performance java development vert.x In the previous entry to this series, we reviewed several techniques that help you to prevent event loop delays; however, even the best programmer makes mistakes. What should you do when your Vert.x application doesn't perform as expected?
High Scalability
FEBRUARY 19, 2019
Redis Cluster is the native sharding implementation available within Redis that allows you to automatically distribute your data across multiple nodes without having to rely on external tools and utilities. At ScaleGrid, we recently added support for Redis Clusters on our platform through our fully managed Redis hosting plans.
DZone
MAY 15, 2019
java performance jvm faq parallelism consumer producer patternIn general, there are two ways to achieve parallelism in your application. As always, both solutions have pros and cons and their core use cases are absolutely different.
Scalegrid
FEBRUARY 7, 2019
Connecting With Java. Among the popular Redis Java clients , Jedis and Lettuce support Redis Clusters. Here’s the same program as the Java example above in Ruby: require 'redis' require 'pp' NODES = ["redis://SG-example-1.servers.scalegrid.io:6379",
DZone
AUGUST 5, 2019
java performance jvm memory error heap dump arguments outofmemoryerrorThe JVM has provided helpful arguments to deal with OutOfMemoryError. In this article, we would like to highlight those JVM arguments. It might come handy for you when you are troubleshooting OutOfMemoryError. Those JVM arguments are: -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath. -XX:OnOutOfMemoryError. XX:OnOutOfMemoryError. -XX:+ExitOnOutOfMemoryError. XX:+ExitOnOutOfMemoryError. -XX:+CrashOnOutOfMemoryError.
DZone
JULY 17, 2019
java performance jvm forecasting outofmemoryerror heap dump analysisEven unpredictable weather is forecasted. But after all these technological advancements, are we able to forecast our application performance and availability? Are we able to forecast even for the next 20 minutes?
DZone
JULY 26, 2019
performance api java development vert.xIn the previous part of the series, we took a closer look at the event loop model. In this article, we are going to discuss several techniques that help you to prevent event loop delays. The causes of event loop delays can be divided into two categories. The first category contains event loop delays caused by a handler calling a blocking API. The second category covers delays caused by a handler code taking a great amount of CPU time to complete.
DZone
MAY 29, 2019
" java tdd unit testing junit bdd test driven developementIf you are developing using Test-Driven Development (TDD), there is a chance that you are doing it the wrong way. The symptoms of this are very clear.
DZone
AUGUST 15, 2019
java performance mobile applicationShould I be running my application with few instances (i.e. machines) with large memory size or a lot of instances with small memory size? Which strategy is optimal? This question might be confronted often. After building applications for 2 decades, after building JVM performance engineering/troubleshooting tools ( GCeasy , FastThread , HeapHero ), I still don’t know the right answer to this question.
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