For example: 1. Does write caching apply whenever any writing is involved? Or only when a file is edited? Does write caching apply when a file is being copied?
2. Is the write cache flushed only when shutting down? Does it happen on putting the computer to sleep? Does it happen when logging out of a user account? Does it happen at other times, e.g. when there's not much happening on the computer?
I run Mac systems mostly these days; but never investigated the write caching... Perhaps this info from Apple-land may be of help?
Thanks for your reply, trvlr, but the article is about content caching, which as far as I can make out is a quite different thing from write caching. Any more for the skylark?
I did a couple of other google trawls, using these two strings: what is write caching?
is write cache flushed when shutting down?
The majority of hits refer of course to windows - currently win-1o inevitably.
perhaps repeat my trawls an have read even though most (all?) are windows related?They do contain useful info and also some solid warnings...
And via another trawl - not specific to this post I found this:
http://osxdaily.com/2012/04/10/shut...
which includes reference to cache flushing when shutting down (or not) an Mac system.
Personally I think it's flushed on shut down; unless there is an option to disallow it?.
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