On Fri, 24 Jan 2020 13:27:03 +0000
The Natural Philosopher  wrote:

> If
> you write to disk it goes into cache. Only if it runs out of cache will
> it actually write to the disk.

 I'm pretty sure you'll find that it usually gets written to disk
before that, only when a dirty block has been written out can it be reused
so flushing dirty blocks is an important activity.

--
Steve O'Hara-Smith                          |   Directable Mirror Arrays
C:\>WIN                                     | A better way to focus the sun
The computer obeys and wins.                |    licences available see
You lose and Bill collects.                 |    http://www.sohara.org/

--- SoupGate-Win32 v1.05