I have been working at the same company for more than a decade, and we build what you can think of as an appliance—basically a powerful server meant to do a single job, instead of operating as a general-purpose system. When we first started building this system, nearly all the functionality we implemented was added to the operating system kernel as extensions and kernel modules. We were a small team and capable C programmers, and we felt that structuring the system this way gave us more control over the system generally, as well as significant performance gains since we did not have to copy memory between the kernel and user space to get work done.
No entries found
Log in to Read the Full Article
Sign in using your ACM Web Account username and password to access premium content if you are an ACM member, Communications subscriber or Digital Library subscriber.
Please select one of the options below for access to premium content and features.
Create a Web Account
If you are already an ACM member, Communications subscriber, or Digital Library subscriber, please set up a web account to access premium content on this site.
Join the ACM
Become a member to take full advantage of ACM's outstanding computing information resources, networking opportunities, and other benefits.
Subscribe to Communications of the ACM Magazine
Get full access to 50+ years of CACM content and receive the print version of the magazine monthly.
Purchase the Article
Non-members can purchase this article or a copy of the magazine in which it appears.