Posts Tagged ‘PHP

As many readers know, I am going through the process — if you call filing a bunch of paperwork and not hearing anything for 2 years a process — of obtaining Permanent Residency in the United States, often referred to as the Green Card.
This morning, on NPR, there was a story about a foul-up in [...]

I have set up measurements to monitor the main pages of some of the world’s largest mobile phone providers.

US Providers
Canadian Providers
European Providers
AsiaPac / South Asia Providers

Just something to do on a rainy Sunday.
Tags: GrabPERF, Web performance, GSM, CDMA, Web site, mobile, wireless, US, Asia, Europe

Thanks to the generosity of Henrik Sjostrand of Netvouz, there is now a measurement location up and running in Gothenburg Sweden.
You will find it listed in the data as Gothenburg Sweden #1.
I have had a few other parties expressing an interest in hosting a measurement agent, but there is always room for more measurement locations! [...]

This morning, after months of increasing performance issues, and connectivity issues, I have retired the Boston Verizon measurement location. This location hosted 2 measurement agents.
The machines, hosted in my basement, are connected using Verizon FiOS, which has become increasingly flaky over the last couple of months. As well, the machines are 7 year old Pentium [...]

My side project, GrabPERF, is looking for a few good measurement locations.
Right now, there are only five measurement locations, two of which are in my basement, on my personal Internet connection. I am hoping, through this pledge drive, to find a number of additional locations. Areas desperately needed include:

East Coast, USA
West Coast, USA
Midwest, USA
UK
Asia-Pac
Southeast Asia
Australia [...]

I’m the first to tell you that I know nothing about using a tool as powerful as The Gimp. I get Layers, but after that, there is a realm of madness that I have not yet reached.
I have learned a cool trick tonight. It’s building on a trick I learned a couple of weeks ago. [...]

It’s always funny when somewhat tech-savvy folks purposely make their bandwidth bills higher than they need to be.
Here’s TechCrunch’s HTTP header response.

HTTP/1.1 200 OK
Date: Tue, 16 Jan 2007 16:02:23 GMT
Server: Apache/2.2.3 (Debian) DAV/2 SVN/1.4.2 PHP/5.2.0-8 mod_ssl/2.2.3 OpenSSL/0.9.8c
X-Powered-By: PHP/5.2.0-8
X-Pingback: http://www.techcrunch.com/xmlrpc.php
Status: 200 OK
Transfer-Encoding: chunked
Content-Type: text/html; charset=”UTF-8″

Port80 Software’s Compression Checker gives us some idea how much bandwidth Mr. [...]

I have set up a test to check the performance of the CoralCDN network against that of the origin server. You can view the comparative results here.
The tests used the base HTML document of this blog as the target.
The results so far indicate that there is a slight performance penalty when using CoralCDN in an ad [...]

I do not want to host my own blog.
Even if I wanted to, Wordpress.com does not make it easy to export content. This, however, is a separate discussion.
Skype and Web 2.0 (I hate the term, but I am using it) are inextricably linked.
Wordpress and Web 2.0 are inextricably linked.
Wordpress.com hates Skype. It’s that simple.
According to [...]

Now that I am back on US soil, I have some tips for surviving your trip to London.

GSM Phones. If you are one of the millions in the United States who subscribe to a CDMA service (Verizon, Sprint, etc.), invest a few bucks on eBay and buy a low-end, unlocked, tri-band GSM phone. I have used [...]


About this blog

Stephen Pierzchala is one of a 10-year veteran of the Web performance field who also writes on topics that interest his non-linear world-view.

Contact

stephen@pierzchala.com

+1 (508) 410-3865