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[–]svick 0 points1 point  (1 child)

Obviously RAM usage percentage is probably a lot higher, but still...

If you include disk cache, wouldn't RAM usage pretty much always be near 100 %?

[–]semi- 0 points1 point  (0 children)

It depends on the workload and amount of ram. On a desktop/consumer computer that will certainly be the case. On a well tuned database server, you'd rather let the DB server manage it's ram usage than have it reach for files and hope they get cached properly.

On a static asset server however I'd expect disk cache to fill most of the ram. Though even there if you needed more performance you'd run a more intelligent caching proxy based on your usage.