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GrabPERF Downtime – May 29-30 2009
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 [...]
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- Tags: GrabPERF, Technorati
Tonight, I figured out how to add the Resolved IP Addresses for a host to measurement data and store that information for further debugging. It was very simple – I was trying to find complex solutions to this issue.
Turns out the solution is built right into PERL: The Socket module.
My thought is that I will [...]
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- Tags: DNS, hostname, IP-location mapping, IPV4, load balancing, Perl
GrabPERF Agent Update – DNS
In: GrabPERF| The Web| Web Performance| search
24 Mar 2009This afternoon, the two GrabPERF Agents at Technorati were switched back to using their local copies of caching BIND for resolving DNS entries.
Some folks at Microsoft who stopped by to look at their results on the Search Performance Index noticed that there were one or two outliers in the results from these locations. When I [...]
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- Tags: caching, DNS, Eric Schurman, Live Search
StatCounter Browser Stats – March 1-24 2009
In: Browsers| GrabPERF| Internet| The Web| Uncategorized| Web Performance| Web analytics| analytics
24 Mar 2009Using the visitor trending data collected and shared by StatCounter, I have undertaken a general analysis of browser distribution by global region. These metrics are collected using the embedded tags that StatCounter customers embed on their site to collect visitor metrics for their own use.
US data shows that MSIE 7.0 is in a dominant position, [...]
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- Tags: Asia, China, European Union, Firefox, Firefox 3.0, India, Japan, Microsoft, Microsoft Corporation, Microsoft Windows, MSIE 6.0, MSIE 7.0, MSIE 8.0, Oceania, Opera 9.6, Safari, South America, South Korea, StatCounter, StatCounter GlobalStats, United States, web application, web applications, web compliance reasons, Web designers nightmare, Web development, Windows 2000
GrabPERF – Search Performance Index
In: GrabPERF| Web Performance| search
16 Mar 2009Today I would like to announce the availability of the GrabPERF Search Performance Index.
The goal of the index is to provide performance metrics for a group of search providers around the world. The results are based on a direct HTTP GET request being made for the search results page by the GrabPERF Agent.
Currently only live [...]
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- Tags: Altavista, Amazon, Ask, Ask.com, Baidu, Bloglines, Cuil, Google, HTTP, search, search providers, search results, Technorati, Yahoo!
GrabPERF Instability this week
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 [...]
GrabPERF Maintenance – March 5 2009, Part 2
5 Mar 2009One 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 [...]
GrabPERF Maintenance – March 5 2009
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 [...]
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- Tags: cURL, GrabPERF, GrabPERF.org
GrabPERF Retail Web Performance Index
4 Mar 2009The 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.
Share and Enjoy:
GrabPERF now using MySQL 5.1
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 [...]
About this blog
Stephen Pierzchala is one of a cadre of crazy Canucks living in the United States. A 10-year veteran of the Web performance field, Stephen also writes on topics as diverse as branding and reputation, bipolar, and Web technologies.
Contact
stephen@pierzchala.com
+1.508.475.9490
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- Stephen Pierzchala: Cool. Now, if it's not supported by anyone, it should get pulled from the RFC. And now that the [...]
- Mark Pauley: You're wrong. Chrome could pipeline, nothing in Webkit prevents this. Chrome doesn't use th [...]
- Browser Wars: Internet Explorer 8 Usage in US Now Tied with Internet Explorer 6 - Newest Industry: [...] this to the trend of decreasing Internet Explorer usage noted late last week and the release o [...]
- iamuarme: Lee Valley Tools carry the 3mm Fix pencil and parts. [...]
- IDN demystified » Chapter 3/3: ICANN. Fail: [...] Vista; and an IE8 out in beta already - this pre-requisite is almost fulfilled (in most countr [...]
- Browser Wars: June was an interesting month
- Canada: Home? What Happened While I Was Out of Town?
- Browser Wars: Internet Explorer 8 Usage in US Now Tied with Internet Explorer 6
- Browser Wars – Internet Explorer 7 Use Collapses in the US
- GrabPERF Downtime – May 29-30 2009
- A Week with Windows 7 RC
- Browser Wars: The Slow Rise of Internet Explorer 8
- Browser Wars: Why Internet Explorer 6 Still Exists
- Browser Wars: Internet Explorer 8.0 Released on Windows Update
- Browser Wars: The Unique Pattern Of MSIE 6.0
