A lack of physical memory can severely hamper Linux® performance. In this article, learn how to accurately measure the amount of memory your Linux system uses. You also get practical advice on reducing your memory requirements using an Ubuntu system as a
An application seems to run more slowly than it should or more slowly than it did previously, or the application is unresponsive or hangs. You may encounter these situations in production or during development. What is at the root of these problems? Often
This “smarter choice” of the garbage collector is generally better but is not always the best. For the user who wants to make their own choice of garbage collectors, this document will provide information on which to base that choice. This will first
You want your Ubuntu desktop to be more responsive? It will take less than a half hour to perform all these tweaks. These tweaks will make your system faster and more responsive without a doubt. Read on to perform the tweaks and enjoy your faster system.
(ISBN 0 9627418 7 6) Sceptics about nootropics ("smart drugs") are unwitting victims of the so-called Panglossian paradigm of evolution. They believe that our cognitive architecture has been so fine-honed by natural selection that any tinkering with su
(ISBN 0 9627418 7 6) Sceptics about nootropics ("smart drugs") are unwitting victims of the so-called Panglossian paradigm of evolution. They believe that our cognitive architecture has been so fine-honed by natural selection that any tinkering with su
Beyond resisting the destruction & degeneration of the brain there looms also the possibility of regeneration & perhaps even augmentation. The "Smart Drug Movement" implies that this is possible -- and possible now. Here I review the subject of "Smart Dru
Beyond resisting the destruction & degeneration of the brain there looms also the possibility of regeneration & perhaps even augmentation. The "Smart Drug Movement" implies that this is possible -- and possible now. Here I review the subject of "Smart Dru
Though descriptive, "smart drugs" is a somewhat unfortunate phrase, smacking of snake oil and panaceas, and sounding about as scientific as Roger Ramjet's proton pills, or Popeye's spinach. If you've had such thoughts upon hearing the term smart drugs, so
Though descriptive, "smart drugs" is a somewhat unfortunate phrase, smacking of snake oil and panaceas, and sounding about as scientific as Roger Ramjet's proton pills, or Popeye's spinach. If you've had such thoughts upon hearing the term smart drugs, so
rformance can be better if changes to the database are batched: turn off autocommit; add multiple SQL statements using the Statement.addBatch() method; execute Statement.executeBatch().
Lets imagine that you have a list view of some data which takes a long time to generate, one second or so to suck the data from the database. This is unreasonable for a site of any proportion, and you certainly don’t want to re-run query every time some
Indexing Services is a small little program that uses large amounts of RAM and can often make a computer endlessly loud and noisy. This system process indexes and updates lists of all the files that are on your computer.
Do you want to make the very best use of your computer's RAM? There are thousands of websites offering performance tweaks for XP and you could spend the next week or more researching the ones you might like to perform, or you can save yourself a lot of bo
There are various things which affect the performance of Apache ActiveMQ and there are many ways you can use to make it go faster depending on your exact requirements.
The Java Application Monitor (JAMon) is a free, simple, high performance, thread safe, Java API that allows developers to easily monitor production applications. * JAMon can be used to determine application performance bottlenecks, user/application intera
InfraRED is a tool for monitoring performance of a J2EE application and diagnosing performance problems. It collects metrics about various aspects of an application's performance and makes it available for quantitative analysis of the application.
ab is a tool for benchmarking your Apache Hypertext Transfer Protocol (HTTP) server. It is designed to give you an impression of how your current Apache installation performs. This especially shows you how many requests per second your Apache installation
Is your Java-based application fully using the capabilities of the IBM eServer hardware it's running on? In this article, the author shows how to find out whether garbage collection, the task carried out by Java Virtual Machine in the background to reclai
The application server, being a Java process, requires a Java virtual machine (JVM) to run, and to support the Java applications running on it. As part of configuring an application server, you can fine-tune settings that enhance system use of the JVM.
On one of the largest Vbulletin based forums I operate we just finished a record month with a little over 217,000 uniques with just shy of half a million total users. As anyone else running a big board knows hitting these types of figures while maintainin
Does your SQL statement have a WHERE clause? I know this sounds obvious, but don't retrieve more data than you need. However, less obvious is that even if your SELECT statement retrieves the same quantity of data without a WHERE clause, it may run faster
Many software engineers recommend what I call the "procrastination approach" to optimization. Delay optimization as much as possible, and don't do it if you can avoid it. I agree with the basic premise. Optimizing too early or too often is not a good appr