Re: [RFC] Transparent on-demand memory setup initializationembedded in the (GFP) buddy allocator

From: Andrew Morton
Date: Wed Jun 26 2013 - 09:29:22 EST


On Wed, 26 Jun 2013 11:22:48 +0200 Ingo Molnar <mingo@xxxxxxxxxx> wrote:

> except that on 32 TB
> systems we don't spend ~2 hours initializing 8,589,934,592 page heads.

That's about a million a second which is crazy slow - even my prehistoric desktop
is 100x faster than that.

Where's all this time actually being spent?
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