where did all my memory go?

[Damian Gerow]

Thus spake Eric Anderson (anderson at centtech.com) [16/02/05 16:02]:
: >On a system that has been up for any significant time, free memory
: >should be very small since free memory is wasted.  My guess is that it
: >is disk cache and that one of the nightly jobs accessed enough stuff to
: >fill it.
: 
: Speaking of this - is there a way to flush the disk cache?  

sync(8)?

But, AFAIK, this doesn't flush the cache held by the HD itself, just that
FreeBSD itself has performed all the writes.