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Johnny LaRue <xxxxxx@yyyyyy.zzz> wrote:and what will you do with this great creationIn article <b1t0vj53njfgitf5ntdl8ssvv4e40vlli9@4ax.com>,Clearly, though, what I have makes my system more responsive, well
Joel <joelcrump@gmail.com> wrote:Alan <nuh-uh@nope.com> wrote:>
>>>>https://i.imgur.com/bNZVr8U.png>
You've just shown that you DO NOT need 32GB of RAM...
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(and that Linux isn't smart enough to count RAM in base-2).
https://i.imgur.com/4jItMI0.png
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As you can see, today, I have puked out a little into swap.
Dude: give it up.
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You've got 33.5 decimal gigabytes of RAM.
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19.2GB is in use with the other 14.3GB used for cache.
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And 3.7MB...
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...one HUNDREDTH of one percent of it...
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...is swapped out...
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...and you think that's a solid argument?
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Linux has 14.3GB used for caching and for some reason chooses to swap a
tiny, TINY fraction of data rather than use a little less for cache...
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...and you think you're proving something good?
So let me get this straight, your argument is that cache isn't
actually needed?
Correct. Cache is not actually NEEDED.
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Yes, it is VERY nice to have spare RAM to use as system cache. But if
you were really using all of your RAM for applications, there would be
very little cache. Or maybe even no cache at all.
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Cache is the first thing to go when YOU need more RAM, for whatever
reason. When you finish editing your 3 hour, 4K movie there will again
be free RAM and various things will be cached again.
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If you had 48GB of RAM, you will initially have an even bigger system
cache. Unused RAM is wasted RAM, so the system will cache everything
it can.
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That is, until YOU need it for whatever.
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For example. This 32GB Mac currently has 15GB used and 17GB in cache.
No swap at all. I started up VMware to run Windows, which has 10GB
assigned to Windows. As expected, I now have 25GB used and 7GB in
cache. Still no swap used at all.
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That is exactly how RAM/cache/swap is supposed to work. Cache
everything possible, but release it when it is needed by the user.
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So, the fact that you are using 19GB and have 14GB in cache means YOU
are not "using all the RAM". The system IS using all the RAM, and that
is a good thing. But YOU have 14GB of RAM that YOU are not using.
worth the meager investment in the RAM.
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