canmove, Confirmed users
2,211
edits
(→Diagnosis Steps: add step of "work offline", and move the interval check and other steps under it) |
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Slowness or high memory usage in Thunderbird can be frustrating. | Slowness or high memory usage in Thunderbird can be frustrating. | ||
'''To fix slowness, you must do some investigation | '''To fix slowness, you must do some investigation to eliminate impacts that may be coming from <u>your</u> environment, because Thunderbird can be impacted by CPU, memory and disk activity from other sources. Multiple possible causes are listed below, so please investigate the full list - which is simple when done one step at a time.''' | ||
= Diagnosis Steps = | = Diagnosis Steps = | ||
'''Before you begin diagnosing''': | '''Before you begin diagnosing''': | ||
* '''Some steps are <u>temporary</u> *tests*, not a suggestion to forever disable a feature.''' So please do not to skip any steps like disabling of antivirus. <u>All steps</u> 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 any steps like disabling of antivirus. <u>All steps</u> are essential to a full diagnosis. | ||
* '''Do not delete files.''' "Bad files" can | * '''Do not delete files.''' "Bad files" can help developers solve problems. Please rename or move files instead of deleting. | ||
'''Fully describe your problem, clearly but in as few words as possible, in a [https://support.mozilla.org/products/thunderbird support forum], [[Thunderbird:Testing:Memory_Usage_Problems#References|existing bug]] or [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided new bug report] and ...: | '''After diagnosing - Fully describe your problem, clearly but in as few words as possible, in a [https://support.mozilla.org/products/thunderbird support forum], [[Thunderbird:Testing:Memory_Usage_Problems#References|existing bug]] or [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided new bug report] and ...: | ||
* use numbers <small>(not adjectives like fast/slow, small/large)</small> - for example cpu percentage, amount of memory, number of folders and messages | * use numbers <small>(not adjectives like fast/slow, small/large)</small> - for example cpu percentage, amount of memory, number of folders and messages | ||
* precisely state when behavior occurs (startup, shutdown, or "normal operation"), and every step in the process to reproduce | * precisely state when behavior occurs (startup, shutdown, or "normal operation"), and every step in the process to reproduce | ||
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#Is Thunderbird better with OS started in safe mode? Instructions: [https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode win10], [https://support.microsoft.com/en-us/help/17076/windows-8-startup-settings-safe-mode win8], [https://support.microsoft.com/en-us/help/17419/windows-7-advanced-startup-options-safe-mode#start-computer-safe-mode=windows-7 win7], [https://support.apple.com/kb/PH25617?locale=en_US MacOS]. If performance is improved in safe mode, then | #Is Thunderbird better with OS started in safe mode? Instructions: [https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode win10], [https://support.microsoft.com/en-us/help/17076/windows-8-startup-settings-safe-mode win8], [https://support.microsoft.com/en-us/help/17419/windows-7-advanced-startup-options-safe-mode#start-computer-safe-mode=windows-7 win7], [https://support.apple.com/kb/PH25617?locale=en_US MacOS]. If performance is improved in safe mode, then | ||
#* check that you have the newest version of AV/firewall software, and check with vendor's support site | #* check that you have the newest version of AV/firewall software, and check with vendor's support site | ||
#* test with antivirus disabled or removed ( | #* test with antivirus disabled or removed (because disabling isn't always reliable). See also [[Thunderbird:Testing:Antivirus Related Performance Issues|AV performance issues]] for settings and information which may help. | ||
#* on Windows, especially Windows 10, try disabling MS-Windows Search (see next numbered item below) | #* on Windows, especially Windows 10, try disabling MS-Windows Search (see next numbered item below) | ||
#* test with firewall disabled or removed <small>[https://support.mozilla.org/en-US/questions/1133857 Ad-Aware example]</small> | #* test with firewall disabled or removed <small>[https://support.mozilla.org/en-US/questions/1133857 Ad-Aware example]</small> | ||
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#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]? | ||
# 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 [[Memory Overview|Thunderbird memory usage is more than expected]] by hundreds of megabytes (MB), then perhaps one or more folders (internally a database) are not being closed, or some other bug. Please : | #If [[Memory Overview|Thunderbird memory usage is more than expected]] by hundreds of megabytes (MB), then perhaps one or more folders (internally a database) are not being closed, or some other bug. Please : | ||
#*Get a diagnostic log of Thunderbird activity with '''MSGDB:5,timestamp''' using [[MailNews:Logging|logging instructions]]. <!-- You must install and use [ftp://ftp.mozilla.org/pub/thunderbird/nightly/latest-comm-1.9.2/ a 3.1beta build appropriate to your OS] [http://s3.mozillamessaging.com/build/try-server/list.html tryserver build] appropriate to your platform that includes ''010-01-14_08:10-bienvenu@nventure.com-1263484981/bienvenu@nventure.com-1263484981-mail-try'' in the name --> | #*Get a diagnostic log of Thunderbird activity with '''MSGDB:5,timestamp''' using [[MailNews:Logging|logging instructions]]. <!-- You must install and use [ftp://ftp.mozilla.org/pub/thunderbird/nightly/latest-comm-1.9.2/ a 3.1beta build appropriate to your OS] [http://s3.mozillamessaging.com/build/try-server/list.html tryserver build] appropriate to your platform that includes ''010-01-14_08:10-bienvenu@nventure.com-1263484981/bienvenu@nventure.com-1263484981-mail-try'' in the name --> | ||
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#If error message indicates a script problem (ex. "Unresponsive Script"), please set javascript.options.mem.log to true and provide a couple log entries of the form <small> CC(T+1186.6) collected: 131 (131 waiting for GC), suspected: 98, duration: 274 ms.</small> | #If error message indicates a script problem (ex. "Unresponsive Script"), please set javascript.options.mem.log to true and provide a couple log entries of the form <small> CC(T+1186.6) collected: 131 (131 waiting for GC), suspected: 98, duration: 274 ms.</small> | ||
#* Has a proxy ever been defined, and is it working correctly or was the proxy removed? (A proxy can cause "Unresponsive script") | #* Has a proxy ever been defined, and is it working correctly or was the proxy removed? (A proxy can cause "Unresponsive script") | ||
#If using high CPU, check to see if | #If using high CPU, check taskmgr to see if [http://forums.mozillazine.org/viewtopic.php?p=12641015#p12641015 mozilla updater.exe] or Window's update process is running. | ||
#Is your '''[https://support.mozilla.org/en-US/kb/profiles-tb Thunderbird profile]''' or any part of Thunderbird on a non-local hard drive, i.e. a "special" drive or mount point? If yes, does it preform better when it is moved to the local disk? | #Is your '''[https://support.mozilla.org/en-US/kb/profiles-tb Thunderbird profile]''' or any part of Thunderbird on a non-local hard drive, i.e. a "special" drive or mount point? If yes, does it preform better when it is moved to the local disk? | ||
#* USB drive? USB is slower compared to a local disk. Some are terrible. [http://portableapps.com/shop/hardware Make sure you've got a good one.] | #* USB drive? USB is slower compared to a local disk. Some are terrible. [http://portableapps.com/shop/hardware Make sure you've got a good one.] | ||
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#* in Windows you want at least 20% free disk space and do defrags | #* in Windows you want at least 20% free disk space and do defrags | ||
#* check whether any OS or application update process is in progress, for example [https://support.mozilla.org/en-US/questions/1226979 Windows update] | #* check whether any OS or application update process is in progress, for example [https://support.mozilla.org/en-US/questions/1226979 Windows update] | ||
#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 RSS news reader account, in Account Settings|Server Settings disable "Check for new messages at startup". <small>If problem is gone you may be seeing something like {{Bug|551144}} (fixed in version 13).</small> | #If you have RSS news reader account, in Account Settings|Server Settings disable "Check for new messages at startup". <small>If problem is gone you may be seeing something like {{Bug|551144}} (fixed in version 13).</small> | ||
# Any Outlook or Hotmail accounts? {{Bug|1355885}} | # Any Outlook or Hotmail accounts? {{Bug|1355885}} | ||