performance - IE detect Javascript Version -


our site performing poorly on client machines, deployed on ie 7 , ie 8. on set of clients, , in our environment, site fast. @ loss next.

so , guess questions surround:

  1. could related javascript version?
  2. ie dom / rendering version ?
  3. antivirus tampering files being downloaded ie?

any other thoughts?

our clients varirous firms in financial services market. assume have ample bandwidth comming office, should check, more importantly bandwidth available on networks.

the site not public site, web application, unfortunately don't think can share without nda (business folks).

the site based on ext/js large amounts of javascript.

added data task manager

ie not running  physcial memory - total: 3036 physcial memory - cached: 994 physcial memory - available: 1000 physcial memory - free: 53  kernel memory - paged: 275 kernel memory - nonpaged: 63  system - handles: 30290 system - threads: 1012 system - processes: 69 system - commit: 3416/6072   ie runnign google.com  physcial memory - total: 3036 physcial memory - cached: 980 physcial memory - available: 952 physcial memory - free: 18  kernel memory - paged: 275 kernel memory - nonpaged: 63   system - handles: 31703 system - threads: 1057 system - processes: 72 system - commit: 3490/6072   ie running our site  physcial memory - total: 3036 physcial memory - cached:933 physcial memory - available: 892 physcial memory - free: 4  kernel memory - paged: 275 kernel memory - nonpaged: 63  system - handles: 32190 system - threads: 1057 system - processes: 74 system - commit: 3555/6072  leaving our site (to stack), jumps up:  physcial memory - free: 25

if it's javascript performing poorly, i'd @ cpu usage/load on different machines, older, or busier hardware have pretty significant effect complex javascript apps.


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