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Unix+clones

Performance Tuning with GCC, Part 1

Post date: November 26, 2005, 01:11 Category: Optimizing Views: 3580 Comments
Tutorial quote: This article provides an overview of the different flags controlling optimization in GCC and some hints on how to use them to get the most performance out of your application. In particular, it discusses some of the new optimization features of the GCC 4.x series included in Fedora™ Core 4 and the upcoming Red Hat® Enterprise Linux® versions.
Unix+clones

Postfix performance tuning

Post date: May 21, 2005, 11:05 Category: Optimizing Views: 3398 Comments
Tutorial quote: Postfix is fast out of the box, but like other packages, you can usually tune it to work even faster. Furthermore, there are situations where Postfix may not perform as well as you expected, whether because of hardware or software limitations on the server system or other adverse conditions, such as a big influx of spam or undeliverable mail. This article shows you how to find and analyze the most common performance problems.
Linux

Profiling in Linux Performance Tuning

Post date: December 18, 2005, 21:12 Category: Optimizing Views: 3410 Comments
Tutorial quote: This chapter covers several methods to measure execution time and real-time performance. The methods give different types of granularity, from the program’s complete execution time to how long each function in the program takes.
Linux

Benchmarking Maildir Delivery on Linux Filesystems

Post date: April 12, 2005, 07:04 Category: Benchmarks Views: 2982 Comments
Tutorial quote: The goal of this set of benchmarks is to determine which of the leading Linux filesystems (ext2, ext3, ReiserFS, and XFS) offer the best performance when used for accepting maildir deliveries. The resulting system should be a good balance of delivery and retrieval performance under potentially high concurrent filesystem load.
Debian

Aggregating network interfaces

Post date: February 12, 2006, 07:02 Category: Network Views: 2969 Comments
Tutorial quote: Using more than one hard drive to achieve better performance and fault tolerance is very common. Less well known is that it's also possible to aggregate more than one network interface into a single logical interface. In Linux, this is handled by the bonding driver. Benefits of doing this are much the same as the benefits of aggregating discs using RAID: if one device dies, your server carries on working and by using two devices in parallel, performance can be improved.
Ubuntu

Installing and configuring FireHOL - Part I

Post date: September 20, 2006, 22:09 Category: Network Views: 7101 Comments
Tutorial quote: This tutorial guides user on how to install and configure FireHOL, a Linux-based firewall.
Arch

X11 Cursors

Post date: April 14, 2005, 01:04 Category: Desktop Views: 6978 Comments
Tutorial quote: There are many cursor themes available for the X11 Windowing System besides the default black pointer.
This guide will instruct you on where to get them, installing them, and configuring them.
Yellow+Dog

Installing Linux on the Mac mini

Post date: May 11, 2005, 12:05 Category: Installing Views: 6130 Comments
Tutorial quote: The Mac mini is an ideal low-cost, high-performance PowerPC development platform for numerous applications. Learn how to install and configure Linux on the mini. Future articles will add the software required to make it into a stand-alone multimedia appliance.

This short series of articles shows you how to take a conveniently inexpensive, high-end PowerPC® platform (specifically, an Apple Mac mini) and build it into a home multimedia appliance using Linux™. At the end of the series, you'll have a stand-alone device that can play slide shows of images, audio, and movies, and that is controlled and administered from another machine using a standard Web browser.

The PowerPC platform is very well-suited to this type of multimedia application, and the G4 with AltiVec used in the Mac mini is an exceptionally powerful and flexible choice. This first article introduces you to the hardware's capabilities and walks you through installing and configuring Yellow Dog Linux so you can delve into some application code in the next article.
Solaris

Configuring networking

Post date: April 13, 2005, 03:04 Category: Network Views: 5227 Comments
Tutorial quote: Networking information in Solaris is stored in text files. Configuration is done by filling in the appriopriate data to these files and invoking specific commands in a terminal window.
Linux

Configuring sudo and adding users to Wheel group

Post date: December 5, 2008, 12:12 Category: Security Views: 3440 Comments
Tutorial quote: f a server needs to be administered by a number of people it is normally not a good idea for them all to use the root account. This is because it becomes difficult to determine exactly who did what, when and where if everyone logs in with the same credentials. The sudo utility was designed to overcome this difficulty.
Web-based applications and online marketing solutions - LumoLink