Laundry

Sun Jul 26 20:31:28 UTC 2020

On Sun, Jul 26, 2020 at 01:11:33PM -0700, Doug Hardie wrote:
> I have a production system (12.1-RELEASE-p6) that is showing around 1 GB of Laundry pages.  There are over 6 Gb Inact and 1 Gb free.  I can understand why the system would want to not prioritize laundering those pages as there is plenty of available pages.  However, does that mean that I have about 1 GB of updated files that have not been written back to disk?  If so, then there is a significant issue with power failures and loss of data.
> 
Laundry keeps both file-backed (named) pages and swap-backed (anonymous)
pages. Most likely it means that you have 1G of anonymous dirty
mappings, for instance programs data/bss and malloced.