lkml.org 
[lkml]   [2009]   [Jun]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCHSET] percpu: generalize first chunk allocators and improve lpage NUMA support
Andi Kleen wrote:
>>>
>> *Ahem* virtual machines *ahem*...
>
> And? Even there's not that big typically.
>
> The traditional problem was just for 128 NR_CPUs kernel were nothing
> was sized based on machine capacity.
>
> Also on large systems the VMs shouldn't be sized for full capacity.
>

We have already have cases where the "possible" CPUs have eaten up the
entire vmalloc area on 32 bits. In real use. It's a real problem.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



\
 
 \ /
  Last update: 2009-06-25 21:29    [W:0.093 / U:2.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site