On 30/01/2021 06:37, Patrick O'Callaghan wrote:
On Fri, 2021-01-29 at 12:25 -0800, Samuel Sieb wrote:
On 1/29/21 6:27 AM, Matthew Miller wrote:
On Fri, Jan 29, 2021 at 11:06:57AM +0000, Patrick O'Callaghan wrote:
I find that Firefox tends to slow down and consume more memory over
time, presumably because some tab is doing a lot of work. However the
usual process listings from 'top' or 'glances' just show a bunch of
fairly cryptic threads such as:
85.4 20.3 7.12G 3.11G 2704 poc 2h55:08 45 0 R 391K 0 /usr/lib64/firefox/firefox -contentproc -childID 5 -isForBrowser -prefsLen 291 -prefMapSize 29096
...
and so on, so it's hard to know which one is associated with which tab (or tabs).
Does anyone have a cheat sheet to help in pinning down the culprit(s)?
There's a weirdly-well kept secret — Firefox has its own built-in "top"!
Check this out:
about:performance
in the firefox toolbar.
That is a very well-kept secret. My usual method is to kill the process
and see which tabs have the crash message on them. I expect I'll still
have to do that, but at least I can find out exactly which tab in the
group it was before I do.
Are we to assume that "Energy Impact" is proportional to CPU usage, or
is there some magic formula behind it?
Does https://support.mozilla.org/en-US/kb/task-manager-tabs-or-extensions-are-slowing-firefox
With the following definition:
Energy Impact shows the processing power being used by the CPU. Tasks with a higher energy impact will drain your battery quicker and may slow down the performance of your system.
Help?
--
The key to getting good answers is to ask good questions.
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