Summary
A workaround is provided for scripts with long code lines (greater than 27000 characters) to improve script scrolling performance.
Error
When using LoadRunner VuGen 11.50, 11.51, 11.52 or 11.52 patch 1 (VuGen 11.5x) to open and scroll a script containing long code lines with more than 27000 characters, poor performance may be observed including scrolling taking more than a minute as well as high CPU usage by the vugen.exe process (~25%).
Cause
There is an issue with the Microsoft WPF framework which is used in the VuGen 11.5x editor.
Fix
Split the long code line into multiple shorter lines e.g. change:
char* longString = "LongLineOfCodeLongLineOfCode";
to:
char* longString = "LongLineOfCode"
“LongLineOf”
“Code”;