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Support Article

Pega 7.1.7 performance is poor on IE 9



 When using Internet Explorer 9 with Pega 7.1.7, as an application developer, experience poor performance and high memory usage. This is not reproduced in other browsers. After installing HFix-20746, performance has degraded further in  Internet Explorer .

Error Messages

Not Applicable.

Steps to Reproduce

The same worked previously with PRPC 6.3. After upgrade to Pega 7.1.7, it turned slow.

Root Cause

System was run on Sun or Oracle Java 6. This is not a supported platform for Pega 7.1.7 as per platform support guide. 


Upgrade to Java 7 and install HFix-20746 to resolve the issue.

Published April 25, 2016 - Updated October 8, 2020

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