lkml.org 
[lkml]   [2018]   [Apr]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 3/3] dcache: account external names as indirectly reclaimable memory
From
Date
On 04/16/2018 02:27 PM, Michal Hocko wrote:
> On Mon 16-04-18 14:06:21, Vlastimil Babka wrote:
>>
>> For example the percpu (and other) array caches...
>>
>>> maybe it will turn out that such a large
>>> portion of the chache would need to duplicate the state that a
>>> completely new cache would be more reasonable.
>>
>> I'm afraid that's the case, yes.
>>
>>> Is this worth exploring
>>> at least? I mean something like this should help with the fragmentation
>>> already AFAIU. Accounting would be just free on top.
>>
>> Yep. It could be also CONFIG_urable so smaller systems don't need to
>> deal with the memory overhead of this.
>>
>> So do we put it on LSF/MM agenda?
>
> If you volunteer to lead the discussion, then I do not have any
> objections.

Sure, let's add the topic of SLAB_MINIMIZE_WASTE [1] as well.

Something like "Supporting reclaimable kmalloc caches and large
non-buddy-sized objects in slab allocators" ?

[1] https://marc.info/?l=linux-mm&m=152156671614796&w=2

\
 
 \ /
  Last update: 2018-04-16 22:01    [W:0.046 / U:6.452 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site