Regression PDF documentitem evalatprint=true massive performance slowdown

Description

I have narrowed down the major performance regressions to be code where evalonprint=true is used. Testing on a 300 page PDF with a header and footer, the PDF is generated in a matter of seconds. Adding *evalonprint * however makes it run forever without finishing.

Here is a test showing the terrible performance of evalonprint. Changing evalAtPrint to false will let this code run in seconds.

Environment

None

Activity

Show:
Michael Offner
March 31, 2020, 2:26 PM

what is the time difference in ACF with and without the evalatprint?

Pothys - MitrahSoft
March 31, 2020, 2:36 PM

Yes ,
In ACF "with and without evalAtprint", it took the same time( 15 or 16 sec)

Brad Wood
March 31, 2020, 4:11 PM

You are correct that feature was not implemented prior, but I still had that code in my code base since Adobe implements it, so as soon as I upgraded, my code had a performance regression. In other words, the same CF code had no performance issue on 5.3.4 and had a performance issue on 5.3.5. Whether it's the addition of a feature or the modification of a feature, it's a regression when my code stays the same and a Lucee upgrade breaks it.
In this case, the temporary fix for me is easy – just to remove the evalonprint attribute, however someone with a codebase running on Adobe CF who needs that attribute cannot do that.

Michael Offner
March 31, 2020, 4:25 PM

i assumed that "evalatprint" was not simply ignored, i assumed it was throwing an exception like "attribute evalatprint is not supported", so in that case i agree, it is kind of a regression, i will add the mark again.

Michael Offner
May 25, 2020, 11:08 AM

traded out of sprint in favor of LDEV-2876

Assignee

Michael Offner

Reporter

Brad Wood

Priority

Major

Fix versions

None

Affects versions