Messages in this thread | | | Date | Wed, 4 Feb 2004 10:54:46 -0800 (PST) | From | Alok Mooley <> | Subject | Re: Active Memory Defragmentation: Our implementation & problems |
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--- Dave Hansen <haveblue@us.ibm.com> wrote:
> The "work until we get interrupted and restart if > something changes > state" approach is very, very common. Can you give > some more examples > of just how a page fault would ruin the defrag > process? >
What I mean to say is that if we have identified some pages for movement, & we get preempted, the pages identified as movable may not remain movable any more when we are rescheduled. We are left with the task of identifying new movable pages.
-Alok
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