Bug 549356 - Eclipse slow while editing Java source code
Summary: Eclipse slow while editing Java source code
Status: NEW
Alias: None
Product: JDT
Classification: Eclipse Project
Component: Core (show other bugs)
Version: 4.12   Edit
Hardware: PC Windows 10
: P3 major (vote)
Target Milestone: ---   Edit
Assignee: JDT-Core-Inbox CLA
QA Contact:
URL:
Whiteboard: stalebug
Keywords: needinfo, performance
Depends on:
Blocks:
 
Reported: 2019-07-17 15:40 EDT by Christophe Duguet CLA
Modified: 2024-01-02 10:44 EST (History)
3 users (show)

See Also:


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Description Christophe Duguet CLA 2019-07-17 15:40:43 EDT
Eclipse is very slow at each line edited.
The issue seems not to be related to autocompletion that I have been disabled prior to the declaration of the incident.
Please note that I have been updated all plugin to verify is the issue was still reproduced and it still occurs.

PS: I am running on SSD.


-- Configuration Details --
Product: Eclipse IDE 4.12.0.20190614-1200 (org.eclipse.epp.package.jee.product)Installed Features:
 org.eclipse.jdt 3.18.0.v20190605-1800
Versioning Plugin:
 org.eclipse.platform 4.12.0.v20190605-1801
Comment 1 Stephan Herrmann CLA 2019-07-17 16:49:26 EDT
We'll need more information to reproduce what your are seeing.

1. Did you install additional plug-ins on top of the JEE package?

2. Can you provide profiler data of what Eclipse is doing when being 'slow'?

3. Short of profiler data, please at least attach several thread dumps from the time of slowness, please see https://wiki.eclipse.org/How_to_report_a_deadlock
Comment 2 Rolf Theunissen CLA 2019-08-20 11:26:42 EDT
Another question, are you running Windows Defender? See Bug 548443.
Comment 3 Eclipse Genie CLA 2021-08-10 08:46:01 EDT
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.
Comment 4 Eclipse Genie CLA 2023-08-03 18:52:30 EDT
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.
Comment 5 bernard Hauzeur CLA 2024-01-02 10:15:12 EST
Definitely recurring issue with 
Eclipse Version: 2023-09 (4.29.0)
Build id: 20230907-1323

I installed the JAVA EE bundle and added jBOSS plugin as well a DBeaver

I am turning off plugins and will report any resolution here
Comment 6 bernard Hauzeur CLA 2024-01-02 10:43:29 EST
I noted that the lagging behavior was linked to using Ctrl-C for copying a chunk of code 
Found the bug at https://stackoverflow.com/questions/52514238/eclipse-has-been-too-lagging-when-handle-copy-paste-or-typing

MyleeKami tells us: ""
ctlr may be used to perform hyperlinking. Then i mapped the hyperlinking modifier key to ALT (General-> Editors-> Text Editors -> Hyperlinking) and eclipse is not lagging anymore when i try using CTRL+C/CTRL+V
Comment 7 bernard Hauzeur CLA 2024-01-02 10:44:59 EST
I noted that the lagging behavior was linked to using Ctrl-C for copying a chunk of code.
Thus, with the extra clue, I found the bug resolution at :
https://stackoverflow.com/questions/52514238/eclipse-has-been-too-lagging-when-handle-copy-paste-or-typing

MyleeKami tells us: ""
ctlr may be used to perform hyperlinking. Then i mapped the hyperlinking modifier key to ALT (General-> Editors-> Text Editors -> Hyperlinking) and eclipse is not lagging anymore when i try using CTRL+C/CTRL+V