memory

Introduction

Most software companies run in that dilemma. In order to write software that works, you want to write some tests. The question for many of these companies is: what kind of tests are most efficient for my business?

Here we talk about seven common test practices in the software industry.

1. Unit Testing

Probably the most used form of testing is Unit Testing. This is easy to write and very effective in discovering bugs. If you are looking at verifying correctness, this is 100% what you need to have to test your software.

Why is it easy to write?

In most cases, Unit ...

What is a Queue

In software a queue is a container which is used to add items on one side and remove them on the other in a very efficient manner.

Sorted Queues

When used by a Journal, a queue is often going to support some kind of sorted order. Some jobs are more important than others and these should be built sooner. In other words, we give those jobs a higher priority and we sort the queue by priority first then using the time at which the job gets inserted.

Note that the C++ std::queue and std::unque containers do not offer anyway to support a priority. Instead you have to use ...

In the last few days, we started hearing about a massive bug in the implementation of the VM memory handling.

Intel has been frantically working on fixing host machines kernels in order to prevent one VM from accessing the memory of other VMs that run on the same machine.

Of course, most users are not going to attempt to read someone else memory so in that sense, most of us are relatively safe. But all of those who are not so lucky and have uninvited guests on their systems are running at very high risk. The information available from Intel says the memory is accessible only in Read mode. ...

This is an interesting concept: have a tag that can clear everything that we have done so far and start over. If you have a single time line, this is certainly useful. Since version 3, however, we get the DefineSprite tag that has a very similar capability (except that it does not have the ability to delete anything from memory, this comes in version 5 with access to external animations that can be created and thrown away dynamically.)

This is a quite interesting article which I thought I should share and keep a copy of!

Most of us, even if we can determine whether a piece of software (or hardware!) can be hacked, we just do not have the time to spend on testing each device we use to ensure that no hackers will be able to get it. We rely on the manufacturer to do that work for us.

This article shows that even though all manufacturers have protections, all are vulnerable! And that means your data is vulnerable on your cell phones... Hope this does not scare you too much!

Note by the way that those people who have plenty of ...

Researchers are always testing new methods to enhance computers. These days, as presented in the Physical Review Letters (Dec 29, 2008), people have been working on phonons. These are heat particules.

This year, 2008, I decided to register and go to LinuxWorld. It is in August and my kids are not at school so it was easy to manage. Also, I had to go to the French consulate to get a birth certificate for my daughter. In other words, I had the chance to do two things at once!

I found it quite interesting to hear that many people were not too excited about the event. Many of the people walking around are like me: they themselves sell their own Linux solution. In other words, they are not going to be customers. I had the chance to talk with Roger Levi, the Vice President of the Open Platform ...

Dear reader,

Yes. With all these terms, it is quite easy to get lost.

As a developer, my skills are quite extensive. I started with Logo, learned assembly language, BASIC, C, C++… and all these other languages in between, those that most people pass by such as Ada, Eiffel, Icon… And the languages you kind of have to learn because you’re in it: Bourne Shell, configuration files for 100 different software, Makefile, etc.

And once you know all of these languages, you think you’re done. Well… Not quite!

The web has got it’s own set of languages! It