Re: show_mem() for ia64 discontig takes a really long time on large systems.

From: KAMEZAWA Hiroyuki <kamezawa.hiroyu_at_jp.fujitsu.com>
Date: 2006-03-29 11:18:25
On Tue, 28 Mar 2006 15:00:16 -0600
Robin Holt <holt@sgi.com> wrote:

> On Tue, Mar 28, 2006 at 12:09:00PM -0800, Chen, Kenneth W wrote:
> > Can you walk the vmem_map's page table and look for none-zero entry, sort
> > of implement something like find_next_valid_pfn? There you can walk at pud,
> > pmd's granule step.
> 
> Short of breaking up nodes into multiple pgdat structures, I think this
> will be the most efficient.  I will try this when I get the time.
> 
Hmm... How about using efi_memmap_walk(filter_rsvd_memory, hogehoge) in
show_mem() ? This will work until you does memory hotplug.

-Kame

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Received on Wed Mar 29 11:20:26 2006

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