tracker issue : CFB-4198201

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Hangs when indenting

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Status/Resolution/Reason: To Fix//BugVerified

Reporter/Name(from Bugbase): John Thwaites / John Thwaites ()

Created: 03/27/2017

Components: Editor Features, Performance

Versions: 2016

Failure Type: Performance Issue

Found In Build/Fixed In Build: 300344 /

Priority/Frequency: Major / All users will encounter

Locale/System: English / Windows 10

Vote Count: 1

Problem Description:When editing a CFM with 500+ lines and select a block of text, say 10 lines, and press tab to indent, CFBuilder becomes unresponsive for 30+ seconds.It eventually returns and indents the text.

Same unresponsive behavior shows when performing a find and replace on a similar size CFM.

Version: 3.1.3
Build: 300344

Steps to Reproduce:

Actual Result:

Expected Result:

Any Workarounds:


  1. March 27, 2017 00:00:00: CFB3_GC_Log
  2. March 27, 2017 00:00:00: CFBuilder.ini


Hi John, I have tried some of examples and observed that ColdFusion Builder was taking on average  5 sec to return editor view after indenting the code. Can you please send us sample code where you facing issue for more than 30 sec ?   Thanks, Mukesh
Comment by Mukesh K.
27624 | April 16, 2018 06:27:54 PM GMT
I have seen this also.
Comment by Mark B.
27656 | May 04, 2018 11:39:25 AM GMT
Seen this again - it is pegging a whole CPU thread (4 core - 25%) while this is happening. Not 30 seconds in my case but close to 20 seconds for each Shift-Tab or Tab.
Comment by Mark B.
29353 | July 18, 2018 01:24:33 PM GMT
Hi Mark, John, Can you please provide sample code where it takes a lot of time to indent the code or consuming a whole CPU thread?   Regards, Mukesh
Comment by Mukesh K.
29564 | August 21, 2018 09:45:37 AM GMT
Is there a way to submit code without attaching it publicly?
Comment by Mark B.
29578 | August 21, 2018 11:39:06 AM GMT
Mark, you can send the code directly to me at
Comment by Mukesh K.
29579 | August 21, 2018 12:34:31 PM GMT
Just confirming that the problem still exists in CF Builder 2018 version 3.2.0 build 310721
Comment by John T.
29604 | August 22, 2018 11:11:04 PM GMT