Re: SLUB 0:1 SLAB (OOM during massive parallel kernel builds)

[Pekka Enberg]

Hi Christoph,

(I fixed linux-mm cc to kvack.org.)

On 10/23/07, Christoph Lameter <clameter@xxxxxxx> wrote:
> The number of objects per page is reduced by enabling full debugging. That
> triggers a potential of more order 1 allocations but we are failing at
> order 0 allocs.

Yeah, but we're _not failing_ when debugging is enabled. Thus, it's
likely, that the _failing_ (non-debug) case has potential for more
order 0 allocs, no? I am just guessing here but maybe it's
slab_order() behaving differently from calculate_slab_order() so that
we see more order 0 pressure in SLUB than SLAB?

                                     Pekka
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