Messages in this thread |  | | | Date | Sat, 21 Jun 2008 14:24:07 +0530 | | From | Balbir Singh <> | | Subject | Re: [PATCH] Priority heap infrastructure enhancements | |
Paul Menage wrote:
> On Sat, Jun 21, 2008 at 1:05 AM, Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
>> I would like to be able to drop the smallest value. Since we cannot drop the
>> smallest value, dropping a leaf (heap->size) should be sufficiently good enough.
>> I want a max heap and losing the root of the heap does not work for me.
>>
>
> What are you actually trying to do? Can you get round this by just
> inverting your "gt" operator? i.e. provide one that actually
> implements "less-than"?
Paul,
That would convert the entire heap to a min-heap. With my soft limit patches,
that I am working on for the memory controller; I want the controller that has
exceeded it's soft limit by the maximum amount to be picked off the heap, so
that we can reclaim from it on memory contention.
Ideally, I would also like to be able to find an existing node in the heap, but
that is hard. I can work around that problem for now.
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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