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Unix+clones

Using MySQL to benchmark OS performance

Post date: April 12, 2005, 07:04 Category: Benchmarks Views: 3505 Comments
Tutorial quote: It seems to be an exciting time for *nix operating systems, with a number of them recently releasing new versions that bring the addition of expanded features and claims of improved performance. If you're using GNU/Linux, OpenBSD, NetBSD, FreeBSD, or Solaris as a database server, you've probably recently considered an upgrade or switch to another OS in that list due to marketing hype and hearsay. This article will show you how to benchmark operating system performance using MySQL on these OSes so you can find out for yourself if you're missing out. While this may not necessarily be indicative of overall system performance or overall database application performance, it will tell you specifically how well MySQL performs on your platform.

The following operating systems were used for the comparison testing:
- FreeBSD 4.11
- FreeBSD 5.3
- NetBSD 2.0
- Linux 2.6
- Linux 2.4
- Solaris 10 x86 (build 69)
- OpenBSD 3.6
Linux

Linux 2.6: Compiling and Installing

Post date: April 15, 2005, 22:04 Category: System Views: 2816 Comments
Tutorial quote: We'll look at the process of compiling and installing a new kernel safely, without overwriting the existing kernel.

You can install as many kernels as you like on a Linux system, and select the one you want to run at boot time. This makes it easy to test different kernels, and different kernel configurations, with particular sets of hardware or applications. The wise network admin always tests new kernels before running them on production machines.
Debian

Rolling your own Debian packages (part 1)

Post date: January 21, 2006, 06:01 Category: Software Views: 2769 Comments
Tutorial quote: This two-part article explains how to make a Debian package of simple piece of software, presumably something you have written yourself. Although building a new package is more complex than rebuilding one or having one generated, the idea is that it is actually surprisingly simple to create basic Debian packages. In fact, if you can make software install into a temporary installation tree, you're already 90% done! This text provides a quick alternative to the more comprehensive Debian New Maintainers' Guide. Only knowledge of Makefiles and the basic Debian package tools is assumed.

The first part of this article will continue with some preliminary information about Debian packages. In the second part we walk through a concrete packaging example.
RedHat

Choosing an I/O Scheduler for Red Hat Enterprise Linux 4

Post date: July 18, 2005, 22:07 Category: Benchmarks Views: 7483 Comments
Tutorial quote: The Linux kernel, the core of the operating system, is responsible for controlling disk access by using kernel I/O scheduling. Red Hat Enterprise Linux 3 with a 2.4 kernel base uses a single, robust, general purpose I/O elevator. The 2.4 I/O scheduler has a reasonable number of tuning options by controlling the amount of time a request remains in an I/O queue before being serviced using the elvtune command. While Red Hat Enterprise Linux 3 offers most workloads excellent performance, it does not always provide the best I/O characteristics for the wide range of applications in use by Linux users these days. The I/O schedulers provided in Red Hat Enterprise Linux 4, embedded in the 2.6 kernel, have advanced the I/O capabilities of Linux significantly. With Red Hat Enterprise Linux 4, applications can now optimize the kernel I/O at boot time, by selecting one of four different I/O schedulers.
Linux

Compiling Your Own Kernel

Post date: May 1, 2005, 17:05 Category: System Views: 2402 Comments
Tutorial quote: Once I decided to take the plunge and go for it, I realised it's not too hard at all. As long as you have a bootable floppy or CD to boot from if your new kernel doesn't work, you'll be OK.

For this simple guide, I'll assume that you use LILO as your boot manager.
Ubuntu

Howto upgrade kernel(2.6.22-9-generic) in Feisty Fawn

Post date: August 5, 2007, 02:08 Category: Software Views: 3294 Comments
Tutorial quote: Currently Feisty Fawn users (7.04) using the generic kernel (which is 2.6.20-16-generic). This tutorial will explain howto upgrade you to kernel version 2.6.22-9-generic(as of 31JUL07).
Ubuntu

Installing Xen 3.3 With Kernel 2.6.27 On Ubuntu 8.10 (x86_64)

Post date: February 24, 2009, 12:02 Category: Installing Views: 3125 Comments
Tutorial quote: This tutorial shows how you can install Xen 3.3 on an Ubuntu 8.10 host (dom0). Xen 3.3 is available from the Ubuntu 8.10 repositories, but the Ubuntu 8.10 kernels (2.6.27-x) are domU kernels, i.e., they work for Xen guests (domU), but not for the host (dom0). Therefore we need to build our own dom0 kernel. This guide explains how to do this with a 2.6.27 kernel.
Debian

Building Kernel Modules With Module-Assistant On Debian Lenny

Post date: January 26, 2010, 12:01 Category: Miscellaneous Views: 3237 Comments
Tutorial quote: module-assistant is a tool for building Debian kernel modules from source, without having to rebuild the whole kernel. It fetches module-source packages that have been prepared for the Debian distribution via apt and produces .deb packages. This tutorial shows how to use module-assistant in command-line mode and in interactive mode.
Ubuntu

Install Ubuntu kernel updates without rebooting using Ksplice Uptrack

Post date: August 24, 2009, 14:08 Category: Software Views: 2460 Comments
Tutorial quote: Ksplice Uptrack is an update service for the Linux kernel; it automatically delivers security and reliability improvements to your machine, without the disruption of rebooting.
Linux

Building a GameCube Linux Kernel

Post date: January 23, 2006, 15:01 Category: System Views: 2453 Comments
Tutorial quote: This guide explains briefly the necessary steps to produce a Linux kernel suitable for the GameCube, using a Linux PC.
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