There's an interesting on-going series of articles on file system latency over at Brendan's Blog. Usually when system administrators look into I/O performance, we look at the I/O of the disks. This is usually fine for a rough estimate of raw disk performance, but there's a lot more going on between the actual application and […]
This company is going out of business because they put all their eggs in a very delicate and quite frankly evil basket: BeamItDown Software and the iFlow Reader will cease operations as of May 31, 2011. We absolutely do not want to do this, but Apple has made it completely impossible for anyone but Apple […]
Lecture notes on the work of Einstein and physics inspired by Einstein's work: The course is aimed at people who have a strong sense that what Einstein did changed everything. However they do not know enough physics to understand what he did and why it was so important. The course presents just enough of Einstein's […]
Interesting article over at Linuxconfig.org: This article describes a simple way on how to create a home made debian package and include it into a local package repository. Although we could use a existing Debian/Ubuntu package, we will start from scratch by creating our own minimalistic unofficial debian package. Once our package is ready, we […]
It's only logical, but I hadn't really thought about it much. Turns out Regular Expression can be vulnerable to external Denial of Service attacks.
Lessons on development of 64-bit C/C++ applications: The course is devoted to creation of 64-bit applications in C/C++ language and is intended for the Windows developers who use Visual Studio 2005/2008/2010 environment. Developers working with other 64-bit operating systems will learn much interesting as well. The course will consider all the steps of creating a […]
I have a laptop that travels with me to work as well as being used at home. I have a number of network CIFS mounts that I like to have available when I am at home, so I have them set to "auto" in /etc/fstab. […] The problem is that when I shift locations, I […]
ArchFS is a FUSE (user-space, so it does not require a special kernel module, other than the FUSE kernel module) file system on top of rdiff-backup (an incremental backup tool). It allows you to mount a rdiff-backup repository and then provides an easy way to maneuver through the various revisions in that repository.
We started a new site where we can vent our rage on all things sucky about software: Software Bashing: We hate software. With a passion: Fact: All software sucks. We're here to show you exactly why, and just how much it truly sucks. We don't discriminate against vendor or development model; all software sucks. We […]
Here's an interesting article on trying to understand TCP performance. It discusses how the TCP flow-control window (receive buffer), window scaling, selective ACKs and some other TCP features/options affect your link's speed. Of course it's only a tiny fraction of the total picture that is link performance, but it's an interesting read. There's also a […]
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