We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is Memory Ordering?

By Alex Newth
Updated May 16, 2024
Our promise to you
EasyTechJunkie is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At EasyTechJunkie, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Memory ordering, or reordering, is a process through which the central processing unit (CPU) takes requests for computer memory and orders them into the most optimized pattern. The process switches around the requests, often processes are completed out of order, but users and programmers do not see this. This usually can be done very easily on a single CPU system, but a system with several CPUs may experience a problem when ordering. If this process were not used, then computers would not be as efficient when completing user requests.

Whenever someone does anything on a computer — moves the mouse, opens a program or edits an image, for example — the CPU has to approve memory usage for the task. These requests normally come in linearly, but they rarely are processed that way. With memory ordering, the tasks are processed in the best possible way to make the computer faster. For example, if the CPU can easily take care of the second process before the first, it will use memory for that process before moving on to other ones.

Requests often are done out of order, which could confuse users and programmers. At the same time, the CPU is programmed to know that memory ordering can confuse them, so it performs everything in a way that makes it seem as if the processes are being completed linearly, even though they are not. This makes it easier for users to understand and usually keeps programmers from having to input excessive coding to ensure the CPU works efficiently.

Memory ordering normally can be done easily very on a computer with a single CPU, but there may be issues with a computer that has several CPUs. This is because it is easier for memory accesses to be approved and properly ordered around with one CPU, but two or more CPUs may falter when attempting to process several tasks. If there is adequate communication between the two or more CPUs, then this problem is usually mitigated.

Without memory ordering, tasks could be harder for the computer and the programmer. On the computer’s side, the CPU would only be able to satisfy requests as they came, meaning the entire process slows down and may keep users waiting. For the programmer, he would have to write excessive coding to ensure the CPU properly takes care of all tasks, which would make program creation take much longer.

EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Link to Sources
Discussion Comments
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.