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Re: Isolated Web Co Session crash Firefox-ESR

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On 4/12/23 06:08, Michael Kjörling wrote:
> The reason for the system slowing down seems to me to likely be that 
> once the system comes under memory pressure (quite possibly due to an 
> increase in anonymous pages), it must evict something, and only 
> non-anonymous (that is, backed) pages can be evicted safely. So most 
> likely the allocator starts evicting program code, because that can be 
> read back from storage later, or other forms of cache, in order to 
> keep room for the anonymous pages which it cannot evict. The next time 
> that code is needed, it must go all the way to the (horribly slow by 
> comparison) storage, instead of originally just writing out to swap 
> some anonymous pages which haven't been used in comparatively forever, 
> like a tmpfs that someone mentioned, or data for inactive web browser 
> tabs or documents you aren't doing anything active with.


It turns out I actually do have a modest swap though I don't recall 
enabling it. It doesn't seem to be used anway.

Given  that, the system after 24 hours of typical use is nowhere near 
using up most of the memory.

I expect that the web browsers keep an eye on available memory and do 
most of their memory management/caching  in a 'fixed' allocation as well 
as the memory marked buff/cache

Here is the status just now

root@client:~# free -m
                total        used        free      shared  buff/cache   available
Mem:           32023        9654       14053         336        9261       22369
Swap:            976           8         968

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Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-03 06:00 +0100
  Re: Isolated Web Co Session crash Firefox-ESR Tom Furie <tom@furie.org.uk> - 2023-12-03 06:40 +0100
  Re: Isolated Web Co Session crash Firefox-ESR Phil Wyett <philip.wyett@kathenas.org> - 2023-12-03 07:10 +0100
    Re: Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-03 07:40 +0100
      Re: Isolated Web Co Session crash Firefox-ESR Phil Wyett <philip.wyett@kathenas.org> - 2023-12-03 07:50 +0100
        Re: Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-03 08:10 +0100
          Re: Isolated Web Co Session crash Firefox-ESR Tom Furie <tom@furie.org.uk> - 2023-12-03 08:30 +0100
          Re: Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-03 09:10 +0100
            Re: Isolated Web Co Session crash Firefox-ESR Phil Wyett <philip.wyett@kathenas.org> - 2023-12-03 10:40 +0100
            Re: Isolated Web Co Session crash Firefox-ESR Tom Dial <tddial@comcast.net> - 2023-12-04 02:50 +0100
      Re: Isolated Web Co Session crash Firefox-ESR Jeffrey Walton <noloader@gmail.com> - 2023-12-03 12:50 +0100
      Re: Isolated Web Co Session crash Firefox-ESR Michael Kjörling <2695bd53d63c@ewoof.net> - 2023-12-03 23:10 +0100
        Re: Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-03 23:20 +0100
      Re: Isolated Web Co Session crash Firefox-ESR Max Nikulin <manikulin@gmail.com> - 2023-12-04 03:30 +0100
        Re: Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-04 03:50 +0100
          Re: Isolated Web Co Session crash Firefox-ESR Max Nikulin <manikulin@gmail.com> - 2023-12-04 04:00 +0100
            Re: Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-04 22:40 +0100
        Re: Isolated Web Co Session crash Firefox-ESR jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-05 19:50 +0100
          Re: Isolated Web Co Session crash Firefox-ESR <tomas@tuxteam.de> - 2023-12-06 06:10 +0100
            Re: Isolated Web Co Session crash Firefox-ESR Karl Vogel <vogelke@pobox.com> - 2023-12-06 10:20 +0100
              Re: Isolated Web Co Session crash Firefox-ESR debian-user@howorth.org.uk - 2023-12-06 13:00 +0100
            Re: Isolated Web Co Session crash Firefox-ESR Max Nikulin <manikulin@gmail.com> - 2023-12-06 15:30 +0100
              Re: Isolated Web Co Session crash Firefox-ESR <tomas@tuxteam.de> - 2023-12-06 16:00 +0100
          Re: Isolated Web Co Session crash Firefox-ESR Max Nikulin <manikulin@gmail.com> - 2023-12-06 15:50 +0100
  Re: Isolated Web Co Session crash Firefox-ESR David Christensen <dpchrist@holgerdanske.com> - 2023-12-03 08:50 +0100
  Re: Isolated Web Co Session crash Firefox-ESR Reco <recoverym4n@enotuniq.net> - 2023-12-03 14:00 +0100

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