On Iau, 2003-07-03 at 00:56, Andi Kleen wrote:
> > 1. We allocate pages in reverse order so most merges cant occur
>
> I added an printk and I get quite a lot of merges during bootup
> with normal IDE.
>
> (sometimes 12+ segments)
Thats merging adjacent blocks with non adjacent page targets using the
IOMMU right - I was doing mergign without an IOMMU which is a little
different and turns out to be a waste of cpu
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