helmi's blog

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minify javascript using Google Closure Compiler

Posted Wed, 11/11/2009 - 12:26 by helmi

Optimize javascript using minify

"It combines multiple CSS or Javascript files, removes unnecessary whitespace and comments, and serves them with gzip encoding and optimal client-side cache headers."

Example of interesting urls:
* http://dev.bigproject/min/?f=static/map.js
* http://dev.bigproject/min/?b=static&f=map.js,taskpane.js,OpenLayers-2.8.js
* http://dev.bigproject/min/?g=js

Few challenges during setup
* 400 Bad Request -- check your path in config.php, especially $min_documentRoot

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Enhance performance by make use of browser parallel download

Posted Tue, 04/08/2009 - 11:37 by helmi

Enhance performance by make use of browser parallel download. Below is from a ticket for one of Byte Craft project:

Need more subdomains

To optimize browser parallel download of map tile images by add subdomains [ http://developer.yahoo.com/performance/rules.html "at least two but no more than four hostnames"]

Most browser have [ http://stevesouders.com/ua/report.php?v=top 60 max connections]

Example subdomains/[ http://trac.openlayers.org/wiki/OpenLayersOptimization multiple URLS] :
* t1.map.localhost
* t2.map.localhost
* t3.map.localhost
* t4.map.localhost

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Render road labels, MapGuide vs Mapnik

Posted Thu, 11/06/2009 - 14:15 by helmi
MapGuide Mapnik
  • Both software configured to tile 256x256
  • MapGuide bad at rendering road name.
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asynchronous javascripts load

Posted Fri, 20/03/2009 - 11:53 by helmi


if you want
better user experience
more revenue
reduced operating expenses
the strategy is clear
Even Faster Web Sites

- from slides Even Faster Web Sites

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IE innerHTML - "Unknown runtime error"

Posted Fri, 19/09/2008 - 12:16 by helmi

"Unknown runtime error" -- only in IE.

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VMware Causing Keyboard Issues in Ubuntu

Posted Fri, 15/08/2008 - 16:15 by helmi

Previously to solve, I Log Out and then Log In again. But you better give this a try

  • open terminal
  • type: setxkbmap
  • put your cursor over the VMWare title bar, but not in the client window. Then Press Ctrl-g Ctrl-Alt. (This grabs and un-grabs the keyboard).

http://nthrbldyblg.blogspot.com/2008/06/vmware-and-fubar-keyboard-effect...

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