Thunderbird:Testing:Memory Usage Problems: Difference between revisions

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Slowness or high memory usage in Thunderbird, for any reason, can be frustrating.  
Slowness or high memory usage in Thunderbird can be frustrating.  


'''To fix slowness, you must do some investigation. And more than one cause is possible, so please use the full list below. If you are unable to find a cause on your own, please provide the detailed results of your investigation with this list in a support forum or bug report.'''
'''To fix slowness, you must do some investigation, because we must eliminate impacts that may be coming from <u>your</u> environment. Thunderbird can be impacted by CPU, memory and disk activity from other sources, therefore multiple causes are possible which are listed below, so please investigate the full list.  


This document may seem technical, but it's not complicated when investigation is taken a step at a time. '''All''' types of performance issues covered, memory, IO, and CPU, because often users see multiple symptoms.
This list may look complicated, but it need not be complicated when taken a step at a time. If you cannot determine the cause on your own, provide detailed results from this list in a support forum or bug report.'''  


= Diagnosis Steps  =
= Diagnosis Steps  =
'''Before you begin diagnosing''':
'''Before you begin diagnosing''':
* '''Some steps are *tests* which should be considered <u>temporary</u>, not a suggestion to forever disable a feature you need.''' So please do not to skip steps like disabling of antivirus - all steps are essential to a full diagnosis.  
* '''Some steps are <u>temporary</u> *tests*, not a suggestion to forever disable a feature.''' So please do not to skip steps like disabling of antivirus. All steps are essential to a full diagnosis.  
* Do not delete files - "bad files" can be useful for future diagnosis. Rename or move files instead of deleting.
* Do not delete files - "bad files" can be useful for future diagnosis. Rename or move files instead of deleting.


'''Describe your problem clearly and fully, but in as few words as possible, in a [https://support.mozilla.org/products/thunderbird support forum], newsgroup, or [[Thunderbird:Testing:Memory_Usage_Problems#References|existing]] or [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided new] bug report and ...:
'''Describe your problem clearly and fully, but in as few words as possible, in a [https://support.mozilla.org/products/thunderbird support forum], newsgroup, or [[Thunderbird:Testing:Memory_Usage_Problems#References|existing]] or [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided new] bug report and ...:
* use numbers - for example cpu percentage, amount of memory, number of folders and messages, etc.
* use numbers <small>(not adjectives like fast/slow, small/large)</small> - for example cpu percentage, amount of memory, number of folders and messages, etc.
* precisely state when slowness or increased memory occurs (startup, shutdown, or "normal operation"), and the sequence of steps to reproduce
* precisely state when behavior occurs (startup, shutdown, or "normal operation"), and the sequence of steps to reproduce
* cite which step numbers below help or which fail [[Thunderbird:Testing:Memory_Usage_Problems#References|bug numbers]], support topic URL(s)
* cite which step numbers below help, or which steps fail [[Thunderbird:Testing:Memory_Usage_Problems#References|bug numbers]], support topic URL(s)
* list account types (imap, pop, rss, etc) obtainable from Help | Troubleshooting
* list account types (imap, pop, rss, etc) obtainable from Help | Troubleshooting
* give Thunderbird version number from Help | About, and also the last version where you did NOT have the problem.
* give Thunderbird version number from Help | About


'''Steps'''
'''Steps'''
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#* MS-Windows Integrated Search in Thunderbird settings, test disable at Tools|Options|Advanced|General|System Integration|Allow Windows Search [https://bugzilla.mozilla.org/show_bug.cgi?id=1294985#c9], [http://forums.mozillazine.org/viewtopic.php?p=14787494&sid=65155af350753b1b533816f9aa186ec2#p14787494], [http://forums.mozillazine.org/viewtopic.php?f=39&t=2998289&sid=b7f14103cb12448f427da681a0ba45c8&p=14571029#p14571029], [http://groups.google.com/group/mozilla.support.thunderbird/browse_thread/thread/93ab6d849bd87918/db493affc19d6520?lnk=gst&q=%22TB+3.1+Freezes%22+%22also+found%22#db493affc19d6520], [http://forums.mozillazine.org/viewtopic.php?p=14283935&#p14283935], [http://forums.mozillazine.org/viewtopic.php?f=39&t=2957945&p=14430851#p14430851], [https://support.mozilla.org/en-US/questions/1102258], [https://support.mozilla.org/en-US/questions/1154444]
#* MS-Windows Integrated Search in Thunderbird settings, test disable at Tools|Options|Advanced|General|System Integration|Allow Windows Search [https://bugzilla.mozilla.org/show_bug.cgi?id=1294985#c9], [http://forums.mozillazine.org/viewtopic.php?p=14787494&sid=65155af350753b1b533816f9aa186ec2#p14787494], [http://forums.mozillazine.org/viewtopic.php?f=39&t=2998289&sid=b7f14103cb12448f427da681a0ba45c8&p=14571029#p14571029], [http://groups.google.com/group/mozilla.support.thunderbird/browse_thread/thread/93ab6d849bd87918/db493affc19d6520?lnk=gst&q=%22TB+3.1+Freezes%22+%22also+found%22#db493affc19d6520], [http://forums.mozillazine.org/viewtopic.php?p=14283935&#p14283935], [http://forums.mozillazine.org/viewtopic.php?f=39&t=2957945&p=14430851#p14430851], [https://support.mozilla.org/en-US/questions/1102258], [https://support.mozilla.org/en-US/questions/1154444]
#* MS-Windows Search service [http://forums.mozillazine.org/viewtopic.php?p=13750937#p13750937 try disabling], especially with [https://bugzilla.mozilla.org/show_bug.cgi?id=1262517 Windows 10], {{bug|1436278}}, or if you moved Thunderbird profile or account from the default location [https://support.mozilla.org/en-US/questions/1117146?page=2#answer-885401], [https://bugzilla.mozilla.org/show_bug.cgi?id=1083233], [https://bugzilla.mozilla.org/show_bug.cgi?id=1283908]. If that helps, you can [http://www.sevenforums.com/general-discussion/215354-how-prevent-showing-search-results-drive-folder.html#post1805728 disable Windows indexing for your Thunderbird data].
#* MS-Windows Search service [http://forums.mozillazine.org/viewtopic.php?p=13750937#p13750937 try disabling], especially with [https://bugzilla.mozilla.org/show_bug.cgi?id=1262517 Windows 10], {{bug|1436278}}, or if you moved Thunderbird profile or account from the default location [https://support.mozilla.org/en-US/questions/1117146?page=2#answer-885401], [https://bugzilla.mozilla.org/show_bug.cgi?id=1083233], [https://bugzilla.mozilla.org/show_bug.cgi?id=1283908]. If that helps, you can [http://www.sevenforums.com/general-discussion/215354-how-prevent-showing-search-results-drive-folder.html#post1805728 disable Windows indexing for your Thunderbird data].
#* Mac Spotlight Integration, Thunderbird setting, at Tools|Options|Advanced|General|System Integration|
#If you have gmail accounts, is problem gone after [http://kb.mozillazine.org/Using_Gmail_with_Thunderbird_and_Mozilla_Suite#Subscriptions unsubscribing the "All Mail" folder]?  
#If you have gmail accounts, is problem gone after [http://kb.mozillazine.org/Using_Gmail_with_Thunderbird_and_Mozilla_Suite#Subscriptions unsubscribing the "All Mail" folder]?  
#* Mac Spotlight Integration, Thunderbird setting, at Tools|Options|Advanced|General|System Integration|
# On Windows, did you move the Thunderbird profile or any Thunderbird account from the default location "[https://www.nextofwindows.com/how-to-access-user-profiles-appdata-folder-the-easiest-way-in-windows-7 %APPDATA%]" to a different Windows directory?  If yes, then MS-Windows Search will [https://bugzilla.mozilla.org/show_bug.cgi?id=1083233 attempt to index all Thunderbird disk activity]. [http://www.sevenforums.com/general-discussion/215354-how-prevent-showing-search-results-drive-folder.html#post1805728 Disable Windows indexing for your Thunderbird data].
# On Windows, did you move the Thunderbird profile or any Thunderbird account from the default location "[https://www.nextofwindows.com/how-to-access-user-profiles-appdata-folder-the-easiest-way-in-windows-7 %APPDATA%]" to a different Windows directory?  If yes, then MS-Windows Search will [https://bugzilla.mozilla.org/show_bug.cgi?id=1083233 attempt to index all Thunderbird disk activity]. [http://www.sevenforums.com/general-discussion/215354-how-prevent-showing-search-results-drive-folder.html#post1805728 Disable Windows indexing for your Thunderbird data].
#If you have newsgroup accounts, then in Account Settings|Server Settings disable "Check for new messages at startup". <small>If problem is gone you may be seeing [https://groups.google.com/d/msg/mozilla.support.thunderbird/_6yvdz0de9g/9KJVVBqIAwAJ many newsgroups with many unread messages], {{bug|185634}}, {{Bug|541001}}, or [http://forums.mozillazine.org/viewtopic.php?p=9900989&sid=e32e1e42a3ddcac8c8605a1cbea6b2e8#p9900989].</small>  
#If you have newsgroup accounts, then in Account Settings|Server Settings disable "Check for new messages at startup". <small>If problem is gone you may be seeing [https://groups.google.com/d/msg/mozilla.support.thunderbird/_6yvdz0de9g/9KJVVBqIAwAJ many newsgroups with many unread messages], {{bug|185634}}, {{Bug|541001}}, or [http://forums.mozillazine.org/viewtopic.php?p=9900989&sid=e32e1e42a3ddcac8c8605a1cbea6b2e8#p9900989].</small>  
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