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Linux

Building a Linux Cluster, Part 1

Post date: April 18, 2005, 03:04 Category: Network Views: 2362 Comments
Tutorial quote: Linux clusters have escaped. As the general popularity of the Linux operating system increases, more complex solutions built with it are becoming increasingly common in the "traditional" (more conservative) IT world. Linux computer clusters, whose provenance was originally universities and research institutions such as the U.S. National Laboratories, are showing up in increasing numbers as high-performance computing solutions within such areas as oil and gas exploration, computer-aided engineering, visualization, and software development. Linux clusters providing highly-available web, mail, and other infrastructure services are also increasingly common. If past computing history is any indicator of future trends, widespread use of Linux clusters in the mainstream IT world cannot be far behind.
Debian

BackupPC Installation And Configuration

Post date: June 19, 2006, 15:06 Category: Software Views: 3104 Comments
Tutorial quote: BackupPC is a high-performance, enterprise-grade system for backing up Linux and WinXX PCs and laptops to a server's disk. BackupPC is highly configurable and easy to install and maintain.
Unix+clones

Benchmarking BSD and Linux

Post date: June 18, 2005, 22:06 Category: Benchmarks Views: 3613 Comments
Tutorial quote: These benchmarks are the result of my scalable network programming research. My interest in this area is to see how scalable and fast network applications can be on standard PC hardware.

I have done most of my research on Linux 2.4, 2.5 and 2.6 kernels using a home-grown distribution I affectionately call "Leanux". I have experimented with several APIs and methods to try and get the most scalability and performance out of a web server. The ultimate goal, however, is to demonstrate scalability by surviving a Slashdotting.
OpenSUSE

Read - Write support for NTFS partition on OpenSuse 11.x

Post date: January 12, 2009, 08:01 Category: Desktop Views: 3242 Comments
Tutorial quote: The ntfs-3g driver is an open source, GPL licensed, third generation Linux NTFS driver which was implemented by the Linux-NTFS project. It provides full read-write access to NTFS, excluding access to encrypted files, writing compressed files, changing file ownership, access right.

Technically it's based on and a major improvement to the third generation Linux NTFS driver, ntfsmount. The improvements includes functionality, quality and performance enhancements.
Ubuntu

Monitoring Servers and Clients using Munin in Ubuntu

Post date: February 13, 2007, 18:02 Category: Network Views: 3953 Comments
Tutorial quote: Munin” means “memory”.Munin the tool surveys all your computers and remembers what it saw. It presents all the
information in in graphs through a web interface. Its mphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort. Using Munin you can easily
monitor the performance of your computers, networks, SANs, and quite possibly applications as well. It makes it easy to determine “what’s different today” when a performance problem crops up. It makes it easy to see how you’re doing
capacity wise on all limited resources.
Unix+clones

Xen Disk I/O benchmarking: NetBSD dom0 vs Linux dom0

Post date: April 21, 2005, 10:04 Category: Benchmarks Views: 2976 Comments
Tutorial quote: Xen is a relatively new technology to enable several virtual machines (domU) to run on one computer. The purpose of this article is to determine what operating system (NetBSD or Linux) should be selected as domain 0 (dom0) operating system to get the best performance when running several CPU and disk intensive virtual machines at the same time.
Ubuntu

Xubuntu 7.04(Feisty Fawn) Screenshots Tour

Post date: June 11, 2007, 23:06 Category: Software Views: 3511 Comments
Tutorial quote: Xubuntu is a complete GNU/Linux based operating system with an Ubuntu base. It is lighter on system requirements and tends to be more efficient than Ubuntu with GNOME or KDE, since it uses the Xfce Desktop environment, which makes it ideal for old or low-end machines, thin-client networks, or for those who would like to get more performance out of their hardware.
Debian

Monitoring Servers and Clients using Munin

Post date: April 4, 2006, 20:04 Category: Installing Views: 2485 Comments
Tutorial quote: "Munin" means "memory".

Munin the tool surveys all your computers and remembers what it saw. It presents all the information in in graphs through a web interface. Its emphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort. Using Munin you can easily monitor the performance of your computers, networks, SANs, and quite possibly applications as well. It makes it easy to determine "what's different today" when a performance problem crops up. It makes it easy to see how you're doing capacity wise on all limited resources.

It uses the excellent RRDTool and is written in Perl. Munin has a master/node architecture in which the master connects to all the nodes at regular intervals and asks them for sdata. It then stores the data in RRD files, and (if needed) updates the graphs. One of the main goals has been ease of creating new plugins (graphs).
OpenSUSE

Measuring the performance/latency of OpenSuse system - LatencyTOP

Post date: February 17, 2009, 08:02 Category: Optimizing Views: 4776 Comments
Tutorial quote: Skipping audio, slower servers, everyone knows the symptoms of latency. But to know what's going on in the system, what's causing the latency, how to fix it... that's a hard question without good answers right now.

LatencyTOP is a Linux* tool for software developers (both kernel and userspace), aimed at identifying where in the system latency is happening, and what kind of operation/action is causing the latency to happen so that the code can be changed to avoid the worst latency hiccups.
OSX

Enhancing Performance Of Mac OS X

Post date: December 29, 2005, 14:12 Category: Optimizing Views: 6219 Comments
Tutorial quote: There are certain things that would help Mac OS X perform well and be more responsive (you could say 'snappy'). Here are some ways to eliminate the typical bottlenecks.
Web-based applications and online marketing solutions - LumoLink