[haiku-bugs] Re: [Haiku] #8109: Memory usage slowly rising in About
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Sat, 12 Nov 2011 23:00:07 -0000
#8109: Memory usage slowly rising in About
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Reporter: luroh | Owner: mmlr
Type: bug | Status: in-progress
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by bonefish):
Yeah, you're right. I just looked at the code and indeed there are several
cases in which the page daemon moves mapped pages to the inactive list.
For pages from non-temporary caches that is desirable. For wired pages
that is probably OK, too (depends on whether the code that unwires pages
handles it correctly -- haven't checked). The logic doesn't seem to be
quite correct for pages whose usage count was > 0, though since ATM
`kPageUsageDecline` is 1, that doesn't harm either.
So, yes, things look in order and adding the inactive page count to the
mapped page count indeed isn't correct. A more correct value for the used
page count would be active + inactive + wired + modified temporary, but I
might be missing something.
--
Ticket URL: <http://dev.haiku-os.org/ticket/8109#comment:14>
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