On Mon, Oct 10, 2005 at 12:37:48PM -0400, Rik van Riel wrote:
> > > How are you going to get the inter-reference distance
> > > this way?
> >
> > How about taking down the current sum of `pgfree' in the slot?
>
> Sounds like a good idea to me. Definately worth a try!
Thanks.
I now realized that counters in struct zone should be better candidates.
And the slots may be used to calculate the real inter-reference distances
for dropped pages. For the present pages, we can either add entries to each
page, or to radix_tree_node. I suspect the latter is enough because it should
work well with sequential reads and sequential reads are the majority of page
activities and the main source of flushing.
--
WU Fengguang
Dept. of Automation
University of Science and Technology of China
Hefei, Anhui
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