On Thu, Jun 22, 2023 at 03:28:14PM +0200, Jan Beulich wrote: > > Unless I'm missing some non-obvious piece of the puzzle, I'd say that for a > > truly general compressor we'd need some kind of loop over the hole mask. > > Well, further compression might be possible that way, yes, but that's > entirely orthogonal to the number of discontiguous regions we're > talking about. Consider > > 0x0000100000000000-0x00001000ffffffff > 0x0000200000000000-0x00002000ffffffff > 0x0000300000000000-0x00003000ffffffff > 0x0000400000000000-0x00004000ffffffff > > The reference system's arrangement was slightly more complex (first and > foremost because of the memory below 4G that node 0 had), but came close > to the above conceptually. > > Jan Ah, I now see what you mean. A single hole can compress several regions if they are all share sequences of zeroes. Fair point. I'll reflect that in that paragraph.
Alejandro
