Clear buffer and cache.

anandg111 · 07-09-2015, 10:44 AM

How to clear buffer and cache memory.

Code:

#free
Mem: 8027952 4377300 3650652 0 103648 1630364
-/+ buffers/cache: 2643288 5384664
Swap: 15624188 608948 15015240

Weapon S · 07-09-2015, 12:41 PM

When you issue "sync" (leave the quotes out of your terminal) Linux should write out buffers to disk.

echoranger · 07-09-2015, 12:53 PM

You generally *don't* want to clear buffer and cache memory. Cache will keep commonly-used disk items in memory for reuse later, with the idea that you want as close to 100 of memory utilized as often as possible, as unused memory is useless. Should the memory be needed for programs later the kernel will reallocate cache memory as needed to programs.

xamaco · 07-10-2015, 05:40 AM

As said above, it might not be a very good idea, but to do it i would suggest something like:

Quote:

sync && echo 3 > /proc/sys/vm/drop_caches

Have a look here or there.