[Bug 57043] New: Undo/Redo is called "abusively"

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57043

            Bug ID: 57043
           Summary: Undo/Redo is called "abusively"
           Product: JMeter
           Version: Nightly (Please specify date)
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Main
          Assignee: issues@jmeter.apache.org
          Reporter: p.mouawad@ubik-ingenierie.com

As per Ubik Load Pack support report :
- Undo/Redo is called "abusively" when for example you:
1) Search for a node by name
2) In Module Controller GUI, when you expand a node

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[Bug 57043] Undo/Redo is called "abusively"

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57043

--- Comment #2 from Philippe Mouawad <p....@ubik-ingenierie.com> ---
Affects Nightly (before 2.12) of 2th October 2014

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[Bug 57043] Undo/Redo is called "abusively"

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57043

--- Comment #1 from Philippe Mouawad <p....@ubik-ingenierie.com> ---
Hello,
I notice big slowdowns of JMeter with nightly build related to Undo/Redo
feature.
Scenario:
- I load a Test Plan with something like 218 elements (1.5m)
- I takes around 23 seconds to load with nightly vs 1.5 seconds on 2.11 on a
MacBook Pro 2.7 Ghz Intel Core i7 16 Gb and -Xms2g -Xmx3g

Analyzing this, it is related to the fact that UndoHistory#add is called for
every addition of a node (> 218 times) , an entry is added in history and
finally undoHistory is cleaned up.

With default settings (I disabled by default undo, I get same load time as
2.10).

We need to improve the undo algorithm.
Regards

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[Bug 57043] Undo/Redo is called "abusively"

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57043

Philippe Mouawad <p....@ubik-ingenierie.com> changed:

           What    |Removed                     |Added
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                 CC|                            |p.mouawad@ubik-ingenierie.c
                   |                            |om
             Blocks|                            |42248

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