Archive for Linux category:
Debian Package for Adaptive Readahead
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I am testing out Adaptive Readahead in Linux quite a lot at the minute. ARA offers particular performance improvements to file-reading logic, and should give significant performance wins on database servers.
I now have a stable enough kernel package for Debian users who may want to try it out. The kernel package uses the [...]
Xen on Debian – a Howto.
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To end a flurry of articles about Xen, here’s a rip from my notebook which explains how I managed to build Xen virtual machines under Debian. Comments on this process are very much welcome.
Install Debian 3.1 on your computer. I’ve typically wanted to keep my desktop Xen free, mainly because it does enough [...]
Xen, and many VBD disk images.
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I’ve just had to solve a problem that a lot of people have seen; but it seems like a lot of people who offer support on the Xen list were not able to come up with the answer.
When you boot a Xen guest from a disk image on your host, you use a loopback ‘instance’. [...]
Migrating from Xen 2 to Xen 3
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Xen is commonly used to describe a package of tools which can build a high-powered, low cost virtualisation environment. Virtualisation allows one computer to run several ‘instances’ of other computers, and permits systems administrators to run hundreds of test, staging, or development environments on a relatively small number of devices.
I will cover how to setup [...]
