Re: [Gumstix-users] Where is my memory going

[Alexandre P. N. <al...@om...>]

Dave Hylands wrote:
> [cut]
>
> I think that df will show you how much RAM is being used.
>
>   
df -h /tmp shows 0 bytes, even tough there are 600k in use... but du -h 
/tmp seems to get close enough...
> The kernel also uses what it can as cache. The cache portion will get
> released if memory is low.
>
> cat /proc/meminfo
>
> will show you how much is being used in the cache.
>
>   
Good point, the "normal" free comand shows the cache/buffer statistics, 
but the simplified busybox one doesn't.
There's also an "inactive" memory pool (grep ^Inactive /proc/meminfo), 
IIRC that's not accounted as cache but is memory that can be freed 
almost immediately, if needed.

The damn thing could be a bit simpler.

- Alexandre