+++
date    = "2023-11-16T14:41:01+00:00"
lastmod = "2023-11-17T19:41:23+00:00"
tags    = [ "gists", "linux" ]
+++

An actual _but where did my Linux memory go_ command;  
This [program](https://www.selenic.com/smem/)
([repositories](https://repology.org/project/smem/versions)) came in handy while
helping someone resolve an {{< abbr oom "out of memory" >}} problem. Want to
[see memory usage and shared memory](https://linux.die.net/man/8/smem), perhaps
sorted by swap?

```shell
smem -s swap -kta
smem --sort swap --abbreviate --totals --autosize
```


{{< disclose >}}
What about on other categories running a `--sort`?
{{</ disclose >}}

```text
swap     (amount of swap space consumed ignoring sharing)
command  (process command line)
maps     (total mappings count)
name     (process name)
pid      (process id #)
user     (process owner)
pss      (proportional set size including sharing)
rss      (resident set size ignoring sharing)
uss      (unique set size)
vss      (virtual set size; total virtual memory mapped)
```

{{< disclose >}}
Bonus: A [filesystem usage command](https://man.archlinux.org/man/df.1) to catch
`/tmp/` and `tmpfs` (temporary file storage) abusers;
{{</ disclose >}}

```shell
df -h | grep tmpfs
df --human-readable | grep tmpfs
```