1488895 - High CPU load - Thunderbird

Status: RESOLVED INCOMPLETE

(Thunderbird :: Untriaged, defect)

Description

[Brady M. Shea]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36

Steps to reproduce:

Currently on 52.9.1 (32-bit)
Every day I notice hesitation while typing new emails in/editing at some point.
I look at task manager and notice TB using 50%. (100% of one core.)
It does this off and on throughout day. Mainly when I am typing in emails.


Actual results:

50% CPU load on dual-core / 1 core @100%
Causes hesitation typing/arrowing around email. (How I notice it, normally.)


Expected results:

What did I expect? 
A CPU relationship that doesn't overload/peg CPU and limit my typing/work.

Comment 1

[Wayne Mery (:wsmwk)]

Please start *Windows'* safe mode with networking enabled
- win10 https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode

Still In Windows safe mode, start thunderbird in safe mode
- https://support.mozilla.org/kb/safe-mode-thunderbird

Does problem go away?

Comment 2

[Brady M. Shea]

@wa(In reply to Wayne Mery (:wsmwk) from comment #1)
> Please start *Windows'* safe mode with networking enabled
> - win10
> https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-
> safe-mode
> Still In Windows safe mode, start thunderbird in safe mode
> - https://support.mozilla.org/kb/safe-mode-thunderbird
> 
> Does problem go away?

This is currently a work machine, so I will have to try this another day. Will update asap.

With that said, it is a new install of Windows.
Previously, I had same mailboxes on Windows 7. (Windows 7 did the same thing, though I do not remember it doing it so often as it does under 10.)
thanks

Comment 3

[Wayne Mery (:wsmwk)]

> Mainly when I am typing in emails.

That's when most users notice it. But the issue isn't with compose itself.

https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems lists some items to try

Until we have more info from you, this isn't actionable