[RFC PATCH 14/23 V2] slub, hotplug: ignore unrelated node's hot-adding and hot-removing
laijs at cn.fujitsu.com
Mon Aug 6 05:39:36 UTC 2012
On 08/03/2012 12:04 AM, Christoph Lameter wrote:
> On Thu, 2 Aug 2012, Lai Jiangshan wrote:
>> SLUB only fucus on the nodes which has normal memory, so ignore the other
>> node's hot-adding and hot-removing.
> You would need to do the same for SLAB. SLAB has an easier time with
> falling back to other nodes (and therefore does not show up in your
> tests) but as a result SLAB will be quite ineffective
> because it created bogus structures that are never used yet constantly
Because SLAB creates bogus structures, so it can care less things when in hotplug.
It is just ugly but it is not bug currently, so I want to delay to fix it.
And SLAB is not so friendly with hot-remove as SLUB in my view, we can fix it altogether in future.
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