Closed Bug 787348 Opened 12 years ago Closed 12 years ago

continuous 100% CPU requests from Thunderbird 15 making system slow

Categories

(Thunderbird :: General, defect)

Product:
Thunderbird
Component:
General
Version:
15 Branch
Platform:
x86
Windows XP
Type:
defect
Priority:
Not set
Severity:
major

Tracking

(Not tracked)

Status:
RESOLVED DUPLICATE of bug 782899

People

(Reporter: nchrysanthou, Unassigned)

Details

(Keywords: perf, regression, Whiteboard: [regression:15.0,cpg bug 650353][fixed in 15.0.1,bug 782899])

User Agent: Mozilla/5.0 (Windows NT 5.1; rv:15.0) Gecko/20100101 Firefox/15.0 Build ID: 20120824154833 Steps to reproduce: scrolling through emails using imap account and selecting a few emails for reading Actual results: the cpu request rose to 100% for more than 10 seconds during which time thunderbird was rendered useless. This issue arose upon upgrading to Thunderbird 15 using more than one different PC. Have tried to repair the folder, disable addons but to no avail. Expected results: scrolling through emails and selecting emails does not cause any noticeable cpu usage and does not freeze thunderbird for more than 10 seconds every a minute or two.
Do you also see TB using large amounts of RAM when the slowness appears?
ram is pretty constant albeit very high as always but nothing out of the ordinary happens with ram demand. It is only cpu demand
"ram is pretty constant albeit very high" is very qualitative. Numbers please :) do you mean scrolling a single email? or scrolling the list of emails?
Keywords: perf
We need RAM when several emails are selected.
ram fluctuates between 300mb to 400mb on my system (imap on windows) but when scrolling / selecting emails either one or more there is no proportional increase in ram other than a spontaneous increase in ram for 50 or so mb which then falls back to circa 300mb in a few seconds.
I'm having the same issues here. Loading large messages of an IMAP account causes TB process to take 100% of CPU for too long (sometimes 10s sometimes more than 30s) and makes it unresponsive. In my case it happens with just plain text messages that have more than 1MB (logs, reports, etc.). Like NickC it started since TB updated to version 15, just to test I reinstalled version 14 and it didn't happens. Mozilla/5.0 (Windows NT 5.1; rv:15.0) Gecko/20100101 Firefox/15.0 20120824172341 Windows XP 32-bits
This may also be bug 782899.
Please try the latest nightly [1] or try build [2] from bug 784286 and report your results so we know if patch works or not. backup your profile before testing. [1] https://ftp.mozilla.org/pub/mozilla.org/thunderbird/nightly/latest-comm-central/ [2] https://ftp.mozilla.org/pub/mozilla.org/thunderbird/try-builds/ireid@mozilla.com-2d5513652000/
(In reply to Wayne Mery (:wsmwk) from comment #9) > Please try the latest nightly [1] or try build [2] from bug 784286 and > report your results so we know if patch works or not. backup your profile > before testing. > > [1] > https://ftp.mozilla.org/pub/mozilla.org/thunderbird/nightly/latest-comm- > central/ > [2] > https://ftp.mozilla.org/pub/mozilla.org/thunderbird/try-builds/ireid@mozilla. > com-2d5513652000/ I slightly tried the standalone version (https://ftp.mozilla.org/pub/mozilla.org/thunderbird/try-builds/ireid@mozilla.com-2d5513652000/try-comm-central-win32/thunderbird-18.0a1.en-US.win32.zip) and it seems to work well. Has no problems opening the same large messages that "freezes" TB 15. Maybe it's placebo effect now, but feels that manages this large mails even faster than TB 14.
Same problem here; Thunderbird 15 often freezes even when I just scroll the list of (local/POP) directories with the mouse wheel, while for some reason the arrows of the scrollbar are more responsive. RAM usage is normal, 200 MB now after a few hours (total size of directories is 2,4 GiB). I'm using fedora 17, AMD E350.
(In reply to Federico from comment #11) > Same problem here; Thunderbird 15 often freezes even when I just scroll the > list of (local/POP) directories with the mouse wheel, while for some reason > the arrows of the scrollbar are more responsive. RAM usage is normal, 200 MB > now after a few hours (total size of directories is 2,4 GiB). > I'm using fedora 17, AMD E350. Federico, if the performance problems you're seeing come only from scrolling in the list of folders or directories, then you're having a different problem than the one we've been working on so far. Angel, NickC, let me know if the 15.0.1 update fixes your performance problem.
Status: UNCONFIRMED → NEW
Ever confirmed: true
well I have tried the daily and it is much faster and from what I see has completely rid itself from the cpu problem. It is also less memory hungry but I dont know if this is due to this being a cut down version. thanks guys you hit the nail on the head...
the version I tried is 18.0a1 with todays date. How does one go about reverting back to the official release once fixed?
Daily should not be a cut down version and it could be actually a bit slower due to less compiler optimisations while building it. It is a full version of Thunderbird that will be polished and released in 18 weeks. But it may be faster/less memory hungry due to Gecko speedups and updates and other TB fixes done in the last 18 weeks compared to the released TB15 version.
(In reply to Irving Reid (:irving) from comment #12) > Federico, if the performance problems you're seeing come only from scrolling > in the list of folders or directories, then you're having a different > problem than the one we've been working on so far. Thank you for the answer. I don't know if it's the same problem, it rather seems the same but worse: I /also/ have the problems described by the original reporter, but that's comparatively less frequent and annoying. Is there an rpm package for the beta/alpha that I should test?
Let your TB15 automatically update to 15.0.1.
(In reply to :aceman from comment #17) > Let your TB15 automatically update to 15.0.1. I don't see any such update, when will it be released?
Try Help-> About Thundebird ->Check for updates.
(In reply to :aceman from comment #19) > Try Help-> About Thundebird ->Check for updates. Are you sure this is supposed to be there on fedora (or linux in general)?
These are disabled on distro builds :(
OK, then wait until your distro pushes an update for you.
(In reply to Irving Reid (:irving) from comment #12) > (In reply to Federico from comment #11) > > Same problem here; Thunderbird 15 often freezes even when I just scroll the > > list of (local/POP) directories with the mouse wheel, while for some reason > > the arrows of the scrollbar are more responsive. RAM usage is normal, 200 MB > > now after a few hours (total size of directories is 2,4 GiB). > > I'm using fedora 17, AMD E350. > > Federico, if the performance problems you're seeing come only from scrolling > in the list of folders or directories, then you're having a different > problem than the one we've been working on so far. > > Angel, NickC, let me know if the 15.0.1 update fixes your performance > problem. Yes, updated this morning to 15.0.1 and things goes as it should (no freezes opening those large messages), or at least as TB14 did for me. Thank you!
I confirm that 15.0.1 has fixed this bug and would like to thank everyone involved. As a general note, we have been using TB for the last 10 years or so and have been very pleased especially with the recent editions when stability has increased tremendously. Memory consumption is still a bit of a problem since in comparison with outlook express TB consumes up to ten times more memory. Having said that however TB is an excellent feature-full product, so congrats to everyone involved ...
Great, thanks for confirmation and that you are happy with TB.
Status: NEW → RESOLVED
Closed: 12 years ago
Resolution: --- → DUPLICATE
Note that you guys can get involved yourself (see https://mail.mozilla.org/pipermail/thunderbird-testers/2012-September/000094.html for instance)
thanks, will check this out
The behaviour I described above is not fixed at all on 15.0.1 (fedora 17) for me. To reiterate: it's not just some particular action, every action which needs to load messages or directories is slow and taking 100 % CPU (except search): scrolling directories, scrolling message list in a directory, opening a message, deleting it, even just forwarding or replying to a message (while the text to be quoted is loaded).
OK, then can you file a new bug for it? This report was filed by NickC and his problem is fixed in 15.0.1. So your's is something different and needs a separate bug, thanks.
Blocks: 794401
(In reply to :aceman from comment #29) > OK, then can you file a new bug for it? > > This report was filed by NickC and his problem is fixed in 15.0.1. So your's > is something different and needs a separate bug, thanks. Split to bug 794401.
No longer blocks: 794401
Severity: normal → major
Keywords: regression
Whiteboard: [regression:15.0,cpg bug 650353][fixed in 15.0.1,bug 782899]
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