Posts Tagged ‘GrabPERF.org

One additional changes was made to GrabPERF today. The homepage with the Top and Bottom Performers, has been changed from a dynamic page to one that is autogenerated every two minutes. This graph should explain why.

The dynamic page was starting to push 20-25 seconds just for the Top 20 List. When I switched to the [...]

Today we undertook two maintenance and upgrade tasks at GrabPERF that have been neglected for too long.

The Agent code was streamlined and removed the connection error sub-routine. It seems that the latest versions of cURL no longer support the connection error determination (I can only imagine the madness of trying to support this on multiple [...]

Why GrabPERF?
About four years ago, I had a bright idea that I would like to learn more about how to build and scale a small Web performance measurement platform. I’ve worked in the Web performance industry for nearly a decade now, and this was an experimental platform for me to examine and encounter many of [...]

In 2004-2005, as a lark, I created my own Web performance measurement system, using PERL, PHP and MySQL. In August 2005, I managed to figure out how to include remote agents.
I dubbed it…GrabPERF. An odd name, but an amalgamation of “Grab” and “Performance” that made sense to my mind at the time. I also never [...]

Through 2007, the number of posts I made per day/week/month decreased steadily. I know post new items 2-3 items a month, or less. After 2 years of steady entries, I just didn’t have anything to add to the conversation.
Having been an A-list groupie for this entire period, I lost touch with the self-perpetuating scene. A [...]

Today’s biggest victim of Black Friday appears to be Sears

Sears measurement data for the last 8 hours can be found here.
UPDATE: It gets worse for Sears.

Technorati Tags:
Grabperf, Sears, Black Friday, Web Performance

mon.itor.us, a service which also provides free Web performance measurement services, appears to be having a wee problem.

The most recent GrabPERF data on this site is available here. The issue may be corrected by the time you look at the data.
I don’t wish suffering like this on anyone. GrabPERF had it’s own 3-4 day outage [...]

Last night, I got motivated.
Ok, I got manic. Goes with my life.
As a part of that mania, I had a breakthrough on how to present GrabPERF data that I’ve actually been collecting for nearly a year: text match failures.
GrabPERF has the ability to match text on page results using a standard PERL regex. By putting [...]

If you use GrabPERF on a regular basis, the somewhat flaky navigation method has become second nature to you. In fact, to circumvent some of the idiosyncrasies, you have probably bookmarked your favourite pages.
Yesterday, I broke your links.
When I redesigned GrabPERF in February 2006, I had just discover the require function in PHP, and decided [...]

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


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