On Fri, 11 Feb 2022 15:57:58 -0500 Bijan Soleymani <bi...@psq.com> wrote:
> On 2022-02-11 14:52, Celejar wrote: > > As I mentioned in another post, I do this occasionally, but I'm not > > sure how to interpret the results. I just killed firefox; I got back > > about 3.5 GB, but the system is still using about 4.8, and Xorg's usage > > hasn't changed: ~ 4436M / 3081M / 105M. > > Closing Firefox returns 100% of Firefox memory to OS (as long as all the > processes are killed). I don't know that it would affect Xorg's usage > though. I understand, but apparently sometimes application memory leaks show up as increased Xorg memory usage: https://unix.stackexchange.com/questions/6538/xorg-memory-leaks This is admittedly old, and xrestop doesn't show anything too suspicious. > A lot of memory in Linux (and other OS's) is allocated to cache/buffers > to speed things up. As programs use more memory the amount for that goes > down. > > For example on my system now with 16GB I have: > MiB Mem : 16007.9 total, 4564.8 free, > 6306.2 used, 5136.9 buff/cache > > (with thunderbird, chrome, etc. open). > > So 5GB is used for cache and 6GB is used for programs and about 4GB is free. I understand this, but as I've been saying, I have the impression that too much memory is being actually used outside buffers and cache. Celejar
