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Asked: 2020-03-12 05:03:08 +0800 CST

i3status memory configuration information doesn't match values in gnome-system-monitor

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I have recently installed i3 in Ubuntu 18.04, and I have started configuring the status bar at the bottom of the screen. To do this, I copied the file /etc/i3status.conf to ~/.config/i3status/ and changed the name to "config".

The problem I have is that when I check gnome-system-monitor, the values do not match. In gnome-system-monitor, it says 2,7 GiB (73%) of 3.7 GiB, but in my status bar, it says 3,7 GiB total (which does match), 1 GiB available and 2,2 GiB(60%) used, which is not the same as 2,7 GiB.

I am very new to this window manager, and there might be just some simple thing I don't understand.

window-manager

1 Answers

  1. Per man i3status:

    As Linux' meminfo doesn’t expose the overall memory in use, there are multiple methods to distinguish the actually used memory.
    ...
    Example memory_used_method: classical ("total memory" - "free" - "buffers" - "cache", matches gnome system monitor)

    In other words, in ~/.config/i3status/config, find the memory section and specify the memory_used_method. Mine looks like:

    memory {
    memory_used_method = classical    
    format = "Mem: %used" // Or whatever you want. Read the man
}

    Although I wouldn't be too surprised if they're still not exactly the same, since I think i3status duplicates how gnome system monitor calculates memory, rather than both having a shared source.

    You might find it easier to read the online docs rather than the terminal man page. Just remember to make sure the versions match (i3status -v).

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