On Tue 28-03-17 09:11:37, Wei Yang wrote: > Hi, masters, > > # What I found > > I found the function calc_memmap_size() may not be that accurate to get the > pages for memmap. > > The reason is: > > > memmap is allocated on a node base, > > while the calculation is on a zone base > > This applies both to SPARSEMEM and FLATMEM. > > For example, on my laptop with 6G memory, all the memmap space is allocated > from ZONE_NORMAL.
Please try to be more specific. Why is this a problem? Are you trying to fix some bad behavior or you want to make it more optimal? I am sorry I didn't look closer into your proposal but I am quite busy and other people are probably in a similar situation. If you want to get a proper feedback please try to state the problem and be explicit if it is user observable. -- Michal Hocko SUSE Labs
