2.5.7 site eats lots of user's CPU in IE9, locks up browser - Joomla! Forum - community, help and support


hi. i've looked on other posts regarding slow sites, haven't seen along these lines. when users access our 2.5.7 site, pushes cpu usage 25% , locks ie tabs. if kill process, restarts , pushes 25% cpu. thought might template or extensions, happens on backend too. also, database not large ... 250 articles. problem not happen firefox or chrome. suggestions? else seeing on backend smaller database?

here system info:

php built on linux s403.c4.crucialx.net 2.6.18-408.el5.lve0.8.61.1 #1 smp wed apr 18 07:47:15 edt 2012 x86_64
database version 5.0.96-community
database collation utf8_general_ci
php version 5.2.17
web server apache
webserver php interface cgi
joomla! version joomla! 2.5.7 stable [ ember ] 13-september-2012 14:00 gmt
joomla! platform version joomla platform 11.4.0 stable [ brian kernighan ] 03-jan-2012 00:00 gmt

it's not server problem. external script (extension in joomla) causing high user/client pc cpu high usage.
i'll give more details if give url website.
cheers.





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