1844842 - thunderbird 115.0.1 takes high cpu loads 100% one core

Status: RESOLVED WORKSFORME

(Thunderbird :: General, defect)

Description

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Steps to reproduce:

Switch from Thunderbird 112.13.0 102.13.0 to 115.0.1

Actual results:

While Thunderbird 112.13.0 102.13.0 ran without issues Thunderbird 115.0.1 takes 100% of one core and is unresponsive for tenth of minutes. As soon als core occupancy drops beyond 8% Thunderbird is responsive again. But this does not keep. Load increases after about a minute or two and Thunderbird is again unresponsive for tenth of minutes.

Expected results:

Thunderbird staying responsive, even if occupying one core 100% for actions if more than one core is available.
If only one core is available Thunderbird should be able to stay responsive by giving user actions higher priority.

Comment 1

[[e-mail]]

Version 102.13.0 to 115.0.1

Comment 2

[Wayne Mery (:wsmwk)]

Please obtain a performance profile and post the link here. THanks

Comment 3

[cpohle]

I also experience significant performance issues since 115. Every few seconds, TB becomes unresponsive for some seconds. This is a profile recorded during scrolling the message list, but similar behavior occurs when writing an e-mail, e. g.: https://share.firefox.dev/43Vgw8p

Comment 4

[cpohle]

Maybe bug #1847137 is related?

Comment 5

[Robert Hartmann]

Sadly after updating to TB 115.2.0 on windows 10
TB is directly inresponsible to Windows.
I can move the mouse over TB main windows and there is only an "rolling circle"
so I cannot create a "performance profile" , because Tool box is not openable.
I can not close the TB window in a normal way:
If I click on the cosing "x" , than Windows catches a TB crash.

Comment 6

[Wayne Mery (:wsmwk)]

(In reply to Robert Hartmann from comment #5)

If I click on the cosing "x" , than Windows catches a TB crash.

Please post your crashID. Perhaps we get lucky and it is useful

Comment 7

[Robert Hartmann]

(In reply to Wayne Mery (:wsmwk) from comment #6)

(In reply to Robert Hartmann from comment #5)

If I click on the cosing "x" , than Windows catches a TB crash.

Please post your crashID. Perhaps we get lucky and it is useful

Sadly no crash report can be submitted - the crashreporter programm did not catch the crash
but WS Windows shows "close unresponsible app" and after that I think some VisualStudio Debugger catched
but could not handle the situation.

I will try it on an other machine again.

Comment 8

[Wayne Mery (:wsmwk)]

(In reply to cpohle from comment #3)

I also experience significant performance issues since 115. Every few seconds, TB becomes unresponsive for some seconds. This is a profile recorded during scrolling the message list, but similar behavior occurs when writing an e-mail, e. g.: https://share.firefox.dev/43Vgw8p

Your issue appears to be graphics related. So I have doubts it is related to bug 1847137. Do you still experience this with 115.2.0 ?

Comment 9

[Wayne Mery (:wsmwk)]

tps ...

(In reply to Wayne Mery (:wsmwk) from comment #2)

Please obtain a performance profile and post the link here. THanks

Comment 10

[Wayne Mery (:wsmwk)]

(In reply to Robert Hartmann from comment #5)

Sadly after updating to TB 115.2.0 on windows 10
TB is directly inresponsible to Windows.
I can move the mouse over TB main windows and there is only an "rolling circle"
so I cannot create a "performance profile" , because Tool box is not openable.

Not Responding and hanging sounds like a different bug. Please file a new bug report.

Comment 11

[cpohle]

(In reply to Wayne Mery (:wsmwk) from comment #8)

Your issue appears to be graphics related. So I have doubts it is related to bug 1847137. Do you still experience this with 115.2.0 ?

Yes, performance is still significantly worse than with pre-Supernova releases. The sluggish UI is really an UX killer on my aged iMac.

Comment 12

[[e-mail]]

This issue is not seen any more with windows or linux versions of thunderbird 115.2.0

Comment 13

[Wayne Mery (:wsmwk)]

Previous comments - please file new bug reports for issues that are still seen with version 115 or newer, and copy your comments to the new bug.