I want to write about Cassandra performance tuning, but first I need to cover some basics: how to use vmstat, iostat, and top to understand what part of your system is the bottleneck -- not just for Cassandra but for any system.

When you say "log-structured file system," most storage developers will immediately think of Ousterhout and Rosenblum's classic paper, The Design and Implementation of a Log-structured File System - and the nearly two decades of subsequent work attempting to solve the nasty segment cleaner problem (see below) that came with it.

One of the things that many people buying new computer or other hardware consider is the hardware compatibility with GNU/Linux. Actually many people do not even think about that. They just go to the shop, buy something that they liked and after that go home and install some distribution.

An operating systems most basic function is to act as a layer between the computer hardware and the user space programs. What an operating system provides to those user space programs is a standard interface to the computers hardware, no matter what type of hardware that is.

Ever want to know how your computer stacks up against other computers? Are you running a decent machine or are you seriously underpowered? Debian 5 Lenny provides an easy way to start making some comparisons.

Operating system not pay $ 400 The operating system is the set of programs responsible for the management and control of basic computer operations. A computer to function, it needs an operating system (there are several: Windows, Linux, Mac, etc.

Petite laptops with small screens and even tinier price tags may do more than shake up the computer hardware industry: They might loosen Microsoft's grip on the computer operating system.

In this post, I wanted to hit on the basics of working with RPM's in Linux (RPM stands for the Redhat Package Management system - basically, they're the software packages that make up your system). In later posts we'll go into some neat tricks... But for now, we'll stick with the basics.

One almost unavoidable problem with using an operating system that is not used by the majority of people is compatibility, specifically hardware compatibility. While Linux supports an amazing number of devices out of the box and chances are if you put Linux on any random computer it will, for the most part, work, there are still many cases where having information about hardware compatibility can be useful.