(In reply to Frank from comment #71) > Thanks Wayne. I think the confusing part in this ticket is that there must > have been multiple regressions in terms of CPU over time and I think we are > also mixing X and Wayland (in case that matters). Certainly I also saw a big > slowdown between TB 91 and 102.
Mixing them probably is OK, as long as they starting date of their behavior is the same. As for slowness starting between 91 and 102, I'm not sure what that would be. There are extremely few performance issues reported in that time period that were ever confirmed. > In any case, with regards to my specific problem (mouse hover lagging behind > in Supernova) I narrowed it down to: > ``` > 2:47.23 INFO: Narrowed nightly regression window from [2023-01-18, > 2023-01-20] (2 days) to [2023-01-18, 2023-01-19] (1 days) (~0 steps left) > 2:47.23 INFO: Got as far as we can go bisecting nightlies... > 2:47.23 INFO: Last good revision: 76f62fd3a78092592457e19dbc6e59f87c4f084d > (2023-01-18) > 2:47.23 INFO: First bad revision: ac5c72f2e56036e2088b5aa794891978fcede5aa > (2023-01-19) >... > Visually the GUI changed drastically between these two builds (colors, icons, > etc.) so I assume this is the massive "ash" code landing you mentioned? Yes, this is when the bulk of supernova code landed. A couple of the remaining performance issues associated with that have been fixed in 128. How does 128 perform for you? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1959747 Title: [upstream] Very high CPU and slow responsiveness in Thunderbird 91-102 Status in Mozilla Thunderbird: Confirmed Status in thunderbird package in Ubuntu: Triaged Bug description: Very high CPU and slow responsiveness in Thunderbird 91.5.0 and later. Just moving the mouse cursor over a message list results in 365% CPU for me. I had to set this in the config editor to fix it: gfx.webrender.force-disabled = TRUE Upstream bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1730423 To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1959747/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
