cgroup free and available memory

[iambriccardo]

Hi, we are using sysinfo in https://github.com/getsentry/relay and we were wondering, the free_memory of CGroupLimits is it equivalent to Sys::new_all().free_memory()? If so, would there be a way to get available_memory?

This question arises from our need to understand how much memory is our cgroup using, excluding all the memory that can be reclaimed by the OS (Linux).

Thanks in advance!

[GuillaumeGomez]

Code is here, I'll let you take a look to confirm whether or not it does what you want.

[iambriccardo]

I was looking through the code, thanks for pointing me to that! Will take an additional look