[Webkit-unassigned] [Bug 81379] NRWT should not take memory used as disk cache into account when deciding how many processes to launch

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81379





--- Comment #6 from Eric Seidel <eric at webkit.org>  2012-03-16 13:51:19 PST ---
We can look through the bugs to see.  I think the concern was that the OS takes up an appreciable fraction of low-memory systems, so we'd have to use a very large "DRT size" approximation in order to avoid overwhelming those systems, but using a very large "DRT size" would cause us to not run enough processes on systems with a smaller percentage used by the OS?

But using "free" memory doesn't work, because supposedly OS X tries hard to never have any free memory (since we have idle memory sitting around).  Which is how we ended up using the current "inactive pages", iirc.

You'd have to look through the bug/commit list to know more.

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