Featured Wordpress Plugin: W3 Total Cache

On 02.16.10, In Blogging, Cool Apps, Web Development, By John Rockefeller

Let me be straight with you: Every Wordpress blog on the web should have this plugin installed.

And, no, I’m also not being paid to say that. :)

W3 Total Cache is exactly what its name suggests: A total caching solution for Wordpress blogs. Wordpress is a good publishing platform and content management system (CMS) but runs into problems quickly when more than a few visitors hit your site. Even moderately busy websites can buckle under the strain of the database connection pools, stylesheets, Javascript, and HTML that Wordpress uses.

Some of the neat features that W3 Total Cache includes:

  1. “Minifies” CSS, Javascript, and HTML by removing all whitespace. To see an example, view the source code of this page. This means there is less data to send to viewers of your website which also means your website loads faster.
  2. Final output is cached and then re-served to the next viewer without having to rebuild. This means that in many circumstances, your blog might only be recreating your site dynamically once an hour. Otherwise, the cached version will be served, greatly increasing the performance and stability of your site.
  3. Uses advanced disk caching techniques to cache output or can also take advantage of Memcache technology (if supported by your server) to increase speed even more.

Before W3 Total Cache I was a fan of WP Super Cache. And before that, I used WP Cache. Neither of the latter two can hold a candle to the capabilities and caching power of W3 Total Cache.

For more information on how this plugin can increase your website’s performance, take a look at W3 Total Cache on the Wordpress Extend website.

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Learning PHP Using Google Wave

On 01.15.10, In Cool Apps, By John Rockefeller
Google Wave
Image via Wikipedia

Tonight at Guelph Coffee and Code I walked the group through the first steps of learning PHP. Because our projector was unavailable, I substituted its functionality with Google Wave. Even though I’ve had access to Google Wave since the summer, this was the first time I had truly used the service.

When I first heard about Google Wave, the idea seemed intriguing enough. I had a hard time figuring out exactly what it could be used for. I’m a huge fan of Gmail and other Google communication tools including Google Apps, so I had faith they’d pull something cool off. However, my first few attempts at trying it were met with less than stellar results.

Truth be told: I couldn’t quite see how it could help me communicate with my friends and colleagues any better than Gmail. So, a few days after receiving notification of my acceptance into the world of Wave, I abandoned it and went back to my life with E-Mail.

What We Did

Using Google Wave, the group followed along with my presentation of syntax and functions and contributed their own code snippets and links. I was able to quickly type example PHP code into the wave and have it appear on their screens as I was typing it instead of all at once when sending the message. The removal of the wait-message-wait-message barrier is critical to its success in groups. It’s just as easy as talking.

This sort of instant chat has been done before, however, most notably with ICQ chat back in the 1990s. But, back then we weren’t quite the society were are today. Have to give credit where credit is due, though.

I knew it was going to go well when after pasting my first code block into the wave, the others in the group started to modify the code without me prompting them. After returning from the fridge, there were already 3 or 4 new lines of code directly beneath mine were with perfect syntax. It was fun!

Is It E-Mail 2.0?

To be perfectly honest, I am not sure. I love Gmail and it will take a lot to move me away from it. Perhaps its a case of uncertainty with respect to how it will interact, if at all, with Gmail in the future.

Even after tonight’s experience, I still have a hard time defining Google Wave or identifying its place in my communication paths. But there are two things I know for sure: It’s great in groups and makes an excellent discussion platform when your projector is down.

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Cloud Folders Increase Productivity

On 12.26.09, In Cool Apps, By John Rockefeller
Dropbox on Linux
Image by elecnix via Flickr

Being a web developer, I usually use several different computers on different operating systems across the lifetime of any project. Personally, I have 5 computers plus one server: Access to a Vista PC, a Windows 7 virtualized installation, my main Mandriva Linux desktop, a Eee 701 PC with Eeebuntu, a Mandriva Linux laptop, and a FreeBSD development server.

Moving files from one computer to the next used to be a time-consuming and ultimately prohibitive process. If I wanted to, say, take a break from working on my PC and work at the Red Brick Cafe for a few hours, I’d have to download my work files to a USB memory card then export the MySQL database and do the same transfer again to the USB memory card.

Or, I could burn a CD. Of course, how does one get the updated files back off the laptop and onto the PC when arriving back at home? This arduous process basically meant that freedom of choice in the work environment was severely hampered and was often more trouble than it was worth. But not any more.

Enter Dropbox.

Dropbox is a free service that is basically a shared folder in the cloud. It makes sharing files amongst any computer, whether it be Mac, Linux, or Windows, easy as drag and drop. And I really mean that. I love things that speed up my work processes because the less time I spend in administration mode the more time I can accomplish tasks in programming mode. Dropbox exemplifies this manifesto.

Any file you put in the Dropbox folder on a computer will instantly be available on any computer that install Dropbox on. Even better, revisions are kept so if you make a mistake with a file and don’t have backups, you can pull the file in question from the archives to restore it. What makes Dropbox different from any other revision or archiving setup is that this is all done without any administration by the user. Literally if you drag a file into the folder, all this stuff is done for you. No committing changes, no crazy hoops to jump through.

Oh, and the 2GB storage starter account is completely free. It’s the one I use daily. I don’t even think I’ve hit 25% capacity yet.

Take a look at Dropbox at http://www.dropbox.com/

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Make Music With Schism Tracker

On 12.12.09, In Cool Apps, By John Rockefeller

There exists an obscure music format that an entire generation of kids grew up with, most without ever realizing the sub-culture and community that had grown up around them. The file format is called Music Modules, or Mods for short. There are many different kinds of Mod formats, each with their own unique set of features, but they all work using the same basic principles: The Mod file contains the “patterns” (digital sheet music) as well as the “samples” (instruments) that play according to the patterns. In this way it is somewhat of a cross between a MIDI and an MP3 file. Because each Mod includes the instruments with the file, each Mod can have a unique sound.

Mods were frequently used in videogames and PC games during the 1990s. If you had a Super Nintendo, Sega Genesis, or Atari Jaguar, chances are you have listened to Mod music and never even knew it.

The Mod community has been around for a long time and includes some of the best Demoscene musicians in the world. Making your own mods is free and easy and when you’re finished with your masterpiece you can unleash it on the world for comment and rating via websites like The Mod Archive.

Schism Tracker Screenshot

Schism Tracker Screenshot

In order to make music modules you will need a computer with a sound card (if you bought a computer after about 1993 you should be okay :D ) and a Tracker. The Tracker I use most frequently to make Mods is Schism Tracker. Schism Tracker is a remake of a classic DOS-based Mod Tracker known as Impulse Tracker. Schism Tracker will run on Windows, Linux, and Mac and is free to download.

If you’re interested in getting started with making music on your computer, check out this tutorial for Impulse / Schism Tracker and have fun!

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Breathe New Life Into An Old Computer

On 12.09.09, In Cool Apps, Linux and FreeBSD, By John Rockefeller
The IceWM Start Menu is supposed to resemble t...
Image via Wikipedia

My laptop is an Averatec 3260. 512MB of RAM, 80GB hard disk, and 1.6GHz processor. It’s had the front panel LCD and battery replaced, by me. It’s still missing the front bezel (I thought it looked cooler with it off.) Up until yesterday, the performance of the machine was just above what I’d consider to be “survivable” regardless of OS.

Then, everything changed.

While I was working with Cory Fowler at Red Brick Cafe and then later at my apartment, I was updating my copy of Mandriva Linux from 2009.1 to 2010.0. During installation something must have gone wrong because KDE4 no longer started properly. It kept bringing me back to the login screen. So, instead of using KDE4 I used IceWM.

I haven’t gone back to KDE4 since yesterday. And I’m the hugest KDE4 fan there is.

If you’ve got an old laptop or an old desktop that’s struggling under the weight of Windows XP or KDE4, grab a copy of Mandriva Linux for free and install the IceWM packages. Give it a go. I’m sure you’ll be impressed with the performance of your machine. I know I was! I remember running IceWM a few times when I first started using Linux quite a number of years ago but it has really come a long way since then.

IceWM runs all of the KDE4 programs I care about and even the Gnome programs, too. Watching a video on YouTube is made much easier with the lighter-weight desktop, as is just general browsing.

IceWM offers a lot of customization but some of it is complicated to configure. The easiest thing to do is to replace the God-awful default theme with something way cooler and easier on the eyes. The theme I’m using now is psicopoire.

The Box-Look.org website includes hundreds of awesome themes you can try out. And installing them is actually pretty simple. To install a new theme in IceWM, try this:

  1. Download the tarball
  2. Untar the tarball into the ~/.icewm/themes directory (if it does not exist, create it)
  3. Right-click on the desktop and go to Settings->Themes->Your New Theme’s Name

Does anyone else know any other neat, lightweight software to replace large-scale, heavy applications? I’d love to give them a try.

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