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Dear Apache Software Foundation, and the developers of the Apache Web server:
I would like to thank you for developing a great product. I rely on it daily to host my own sites, and a large number of people on the Internet seem to share my love of this software.
However, it appears that you seem to [...]

My Google Alerts today picked up a post from a former colleague of mine, commenting on another post from the Yahoo! Interface blog.
I had some problems following the stream in the Performance Matters post, so I thought I would this post to clear up my thoughts.
A technical note up front: Using a waterfall chart that [...]

I was wondering if there would be any interest in a Web performance Skypecast / Forum. I am considering hosting one on Monday or Tuesday of next week (December 11 or 12).
Drop me an e-mail, Skype voicemail, or smoke signal if you are interested.
SKYPE: stephen.pierzchala
Technorati Tags: Web performance, Skype, Skypecast

This paper is an extension of the work done for another article that highlighted the performance benefits of retrieving uncompressed and compressed objects directly from the origin server. I wanted to add a proxy server into the stream and determine if proxy servers helped improve the performance of object downloads, and by how much.
Using the [...]

How much improvement can you see with compression? The difference in measured download times on a very lightly loaded server indicates that the time to download the Base Page (the initial HTML file) improved by between 1.3 and 1.6 seconds across a very slow connection when compression was used.

Base Page Performance
There is a slightly slower [...]

cURL is an application that can be used to retrieve any Internet file that uses the standard URL format — http://, ftp://, gopher://, etc. Its power and flexibility can be added to applications by using the libcurl library, whose API can be accessed easily using most of the commonly used scripting and programming languages.
So, how [...]

The last time I attempted to compile mod_gzip into Apache, I found that the instructions for doing so were not documented clearly on the project page. After a couple of failed attempts, I finally found the instructions buried at the end of the ChangeLog document.
I present the instructions here to preserve your sanity.
Before you can [...]

NOTE: This hack is only relevant to Apache 2.0.44 or lower. Starting with Apache 2.0.45, the server contains the DeflateCompressionLevel directive, which allows for user-configured compression levels in the httpd.conf file.
One of the complaints leveled against mod_deflate for Apache 2.0.44 and below has been the lower compression ratio that it produces when compared to mod_gzip [...]

In a previous paper, the use of mod_gzip to dynamically compress the output from an Apache server. With the growing use of the Apache 2.0.x family of Web servers, the question arises of how to perform a similar GZIP-encoding function within this server. The developers of the Apache 2.0.x servers have included a module in [...]

Web page compression is not a new technology, but it has just recently gained higher recognition in the minds of IT administrators and managers because of the rapid ROI it generates. Compression extensions exist for most of the major Web server platforms, but in this article I will focus on the Apache and mod_gzip solution.
The [...]