Measuring Performance Of CSS Optimizations?

Hi,
I'm relatively new to CSS and standards-based coding. I've been trying like crazy to get all my sites compliant and I am beginning now to wonder about optimizations for speed of execution. Things like...
1. Making class names shorter
2. Removing obsolete classes from style sheets
...and so on.
Are there some commonly used metrics for decided whether or not this sort of thing is 'worth it'. ie. how -much- it improves performance to remove an obsolete class that is, say 100 chars long. I know I'm being vague, but I maintain many sites---some have very little traffic and some a lot (well--to me it's a lot). This sort of clean up is very time consuming so I'm just trying to figure out what will give the most bang for buck. It's hard for me to judge because of all the variables: different ISPs, # of users, size of site, size of stylesheets, size of pages, etc.
Any general thoughts?
TIA,
---JC

Thanks Nancy.
A couple of things, though...
1. Web Page Analyzer -
http://www.websiteoptimization.com/services/analyze/
---Can't get it to 'work'. Always replies with 'no data returned' for my web site http://jchmusic.com/discography.htm
2. CSS code optimizer.Â * Note: do a site test before you replace old code with optimized code.*
http://www.cssportal.com/generators/optimize.htm*
---It replies with a list of optimisations, which is great, but the Copy To Clipboard doesn't work for me. And the Output to File option doesn't do anything either. Is there a way to 'see' the complete results all in one go?
3. I knew about Dust Me (thanks to you!) but it sure seems -slow-. I was hoping for other options (like the above) to make the process a bit faster.
TIA,
---JC

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Thanks ......
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I understand that while the DBA role can be clearly defined in theory (Oracle Database Administrator's Guide - Task of a DBA), in practice many organizations, especially the smaller ones, are closer to what you have described. In such cases, the approach I'm familiar with has been to define as much as practicable the primary and secondary responsibilities of each position, and define the KPIs for the primary and make rather vague statements for the secondary role(s).
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Measuring Performance of Storage Systems

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Can anyone tell me the difference in performance between CSS URL switching and F5 Big-IP?
second
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Hi..........
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Edited by: Debjani Mukherjee on Nov 17, 2008 2:05 PM

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Hi Damian,
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I want to study the two cases and want to submit a report on that. How can I do a STRESS testing and can measure the performance.
Thanks

Hi,
one of the ways would be to get a stress tool
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it comes with a free trial and do a stress test with that
then you can just compare the result in the XI
with such tools you can just record a transaction in
the sap or an http call or almost anything
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Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions">XI / PI FAQ - Frequently Asked Questions</a>

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I am interested in measuring the performance of my beans. I realize that "performance" by itself is rather generic. To be very specific, I want to measure the time taken by my EJB to perform a database activity. For example, how does the update of my CMP bean compare with a JDBC call from a BMP bean ?
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try:
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Marian

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- Same problem)?
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above. Please keep in mind: My problem is NOT, that the code above is slow. (I know, this loop is totally senseless...it's for demonstration purposes only) My problem IS, that changing the font impacts measurement in such an enormous amount...
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Btw.: This problem not only arises within my own grid component, it can also be reproduced with WPF's internal datagrid. Scrolling performance degrades dramatically when using "Arial" as the font-family.

Hi Max
I realise that WPF doesn't use Win32, but I suspected something similar (i.e. the font is being loaded and unloaded everytime a measure takes place rather than using a cached font). I just looked up TextBlock in ILSpy and can see a MeasureOverride method
which does quite a lot of work with the font before using it to measure text and then discards all of this information when it's finished. That's obviously where the bottleneck is. I don't program in WPF so I have no idea how to fix it.
protected sealed override Size MeasureOverride(Size constraint)
this.VerifyReentrancy();
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Follow the path of EnsureTextBlockCache() to see how much information is being processed and then dumped every time a measure operation is processed.
Mick Doherty
http://dotnetrix.co.uk
http://glassui.codeplex.com

Measuring Performance Of CSS Optimizations?

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