grátis:
% bl0ck_qu0te%As colunas exibidas são:
total:
- Total installed memory (MemTotal and SwapTotal in /proc/meminfo)
used:
- Used memory (calculated as total - free - buffers - cache)
free:
- Unused memory (MemFree and SwapFree in /proc/meminfo)
shared Memory:
- used (mostly) by tmpfs (Shmem in /proc/meminfo, available on kernels 2.6.32, displayed as zero if not available)
buffers:
- Memory used by kernel buffers (Buffers in /proc/meminfo)
cache:
- Memory used by the page cache and slabs (Cached and Slab in /proc/meminfo)
buff/cache: Sum of buffers and cache
Fonte: veja man free