On Sun, Mar 10, 2013 at 02:57:16PM +0100, Seth wrote:
> I'd just look at the working set/vmsize for that (usually, just pressing 
> 'M' vs. 'P' in top)

You wouldn't know how much of it would be written back.

> Do you run with swap? I haven't configured any of my machines with swap 
> for at least .. many years now[*]. That might be a key difference in our 
> setups.

Yes but that's not the point, I only use swap as a backing store for
unused anonymous memory. Let's simply say my guest systems don't support
memory ballooning.

> Whenever I want to make stuff faster, I just give it tmpfs to use. Which 
> is a lot of the time. I usually work with everything (source code trees, 
> even virtual machine images on tmpfs). Then whenever I created something 
> I want to keep I "commit" it (either to a repository or by copying to 
> persistent storage).

My current build trees are too large to fit in memory. I use ccache, and
tuning virtual memory helps a lot when rebuilding parts of a build tree
(which is my common working set, and not easily put in a tmpfs without
the rest of the tree). This is actually what made me think about
patching htop.

> I was a little sketchy on the caching things I mentioned. I should have 
> said I'm used to seeing cache/buffer distinctively. It's probably as 
> simple as that.

That's very understandable.

-- 
Richard Braun

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