[Trac #835] Investigate 4M PTE/TLB caching on the Geode
Zarro Boogs per Child
bugtracker at laptop.org
Fri Jan 26 16:52:13 EST 2007
#835: Investigate 4M PTE/TLB caching on the Geode
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Reporter: marcelo | Owner: marcelo
Type: defect | Status: new
Priority: normal | Milestone: BTest-3
Component: kernel | Resolution:
Keywords: |
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Comment (by JordanCrouse):
There is no doubt all the support is there, I just don't know if its a
very good idea or not. Its true that 4MB pages means less page faults,
and less TLB thrash, but on the other hand, with only 119 MB of usable
memory, partitioning it off into 4Mb pages means a goodly amount of unused
space for 99% of our applications, especially all the little tasks and
daemons that only need a few hundred K at the most. It just doesn't
really seem to make sense to me given our limited resources. I vote we
stick with 4k pages.
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Ticket URL: <http://dev.laptop.org/ticket/835#comment:3>
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