Public bug reported:
The values shown as "memory used" are not really informative. Roughly
speaking
"used" memory (indicated in the tool) = "really used" memory (NOT
indicated in the tool) + "cache" (indicated in the tool) + "available"
(NOT indicated in the tool)
The tool shows the LHS "used memory" and "cache", but does not show the
"available memory". With modern kernels the tendency is to "use" memory
as much as possible in various buffers, so the value indicated in that
tool has no practical value.
For a user I would presume that "memory" should be indication of "really
used" memory, because only that tells him how many application will he
be able to run.
Currently my Machine tells me it is using 61 GB of memory, with 20.5 GB
in Cache. While all I have open are some basic simple tools like skype,
Gnome-Terminal and a few Google Chrome windows. Thing is I have 33GB in
"available" (according to TOP), which tells me that I am "really using"
around 7GB of memory, which sounds about right.
There is no way to get the 7GB value from gnome-system-monitor.
The gnome-system-monitor should show "really used memory" or at the very
least show also "available" memory just below "cache".
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-system-monitor 42.0-1
ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30
Uname: Linux 5.15.0-25-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 20 16:07:09 2022
SourcePackage: gnome-system-monitor
UpgradeStatus: Upgraded to jammy on 2022-03-19 (32 days ago)
mtime.conffile..etc.apport.crashdb.conf: 2021-05-03T18:07:38.595923
** Affects: gnome-system-monitor (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy
** Attachment added: "Screenshot from 2022-04-20 16-07-21.png"
https://bugs.launchpad.net/bugs/1969628/+attachment/5581831/+files/Screenshot%20from%202022-04-20%2016-07-21.png
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https://bugs.launchpad.net/bugs/1969628
Title:
Used memory indication is not really useful
Status in gnome-system-monitor package in Ubuntu:
New
Bug description:
The values shown as "memory used" are not really informative. Roughly
speaking
"used" memory (indicated in the tool) = "really used" memory (NOT
indicated in the tool) + "cache" (indicated in the tool) + "available"
(NOT indicated in the tool)
The tool shows the LHS "used memory" and "cache", but does not show
the "available memory". With modern kernels the tendency is to "use"
memory as much as possible in various buffers, so the value indicated
in that tool has no practical value.
For a user I would presume that "memory" should be indication of
"really used" memory, because only that tells him how many application
will he be able to run.
Currently my Machine tells me it is using 61 GB of memory, with 20.5
GB in Cache. While all I have open are some basic simple tools like
skype, Gnome-Terminal and a few Google Chrome windows. Thing is I
have 33GB in "available" (according to TOP), which tells me that I am
"really using" around 7GB of memory, which sounds about right.
There is no way to get the 7GB value from gnome-system-monitor.
The gnome-system-monitor should show "really used memory" or at the
very least show also "available" memory just below "cache".
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-system-monitor 42.0-1
ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30
Uname: Linux 5.15.0-25-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 20 16:07:09 2022
SourcePackage: gnome-system-monitor
UpgradeStatus: Upgraded to jammy on 2022-03-19 (32 days ago)
mtime.conffile..etc.apport.crashdb.conf: 2021-05-03T18:07:38.595923
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-system-monitor/+bug/1969628/+subscriptions
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