Web Performance, Branding, and Social Media
In: GrabPERF
4 Sep 2009The GrabPERF database server failed sometime early this morning. The hosting facility is working to install a new machine, and then will begin the long process of restoring from backups and memory.
Updates will be posted here.
UPDATE – Sep 4 2009 22:00 GMT: The database listener is up and data is flowing into the database and [...]
In: GrabPERF
29 May 2009There will be GrabPERF downtime on May 29-30 2009 as Technorati completes its colocation relocation process. [here] There is no set time for the outage or its length, as the machines have to be physically relocated to the new datacenter, and then integrated into the new network configuration.
I will be contacting the agent locations in [...]
In: GrabPERF
13 Mar 2009Over the last seven days, GrabPERF has been running in a very unstable state. This appears to be directly related to the use of InnoDB as the DB engine on a few of the larger tables in the database. [InnoDB changeover discussed here]
Today, the system was offline for several hours before I noticed that the [...]
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 [...]
In: GrabPERF
5 Mar 2009Today 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 [...]
The GrabPERF Retail Web Performance Index is an extension of the Holiday Performance Index created for the Black Friday/Cyber Monday craze in 2008.
There is a methodology statement explaining more about the index below the data table.
Please add any comments or questions to this post.
In: GrabPERF| Technology| The Web| Web Performance| WebPerformance.Org
3 Mar 2009On the weekend, I upgraded the database engine for GrabPERF to Mysql 5.1 and switched the main data table from MyISAM to InnoDB.
The switch to InnoDB was done because of the locking issues that were occurring during long queries, especially when doing ad-hoc analysis. The row-level (versus table-level) locking of InnoDB has removed most of [...]
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 [...]
The GrabPERF Black Friday Dashboard is done for another year and there were two performance victims that suffered the most at the hands of the onslaught of bargain-hunters in the area of Web performance.
Some caveats that I need to mention about the GrabPERF measurement methodology.
Only the base HTML file of each site is measured.
Only the [...]
Once again, the Grabperf Black Friday Dashboard is up and running!
GrabPERF Black Friday Online Retailer Performance Dashboard
Check out your favorite retailer or suggest one we missed!