On 1/22/21 1:48 AM, Roman Gushchin wrote:
> On Thu, Jan 21, 2021 at 06:21:54PM +0100, Vlastimil Babka wrote:
>
> Hi Vlastimil!
>
> This makes a lot of sense, however it looks a bit as an overkill to me (on
> 5.9+).
> Isn't limiting a number of pages (instead of number of objects) sufficient on
On Thu, Jan 21, 2021 at 06:21:54PM +0100, Vlastimil Babka wrote:
> For performance reasons, SLUB doesn't keep all slabs on shared lists and
> doesn't always free slabs immediately after all objects are freed. Namely:
>
> - for each cache and cpu, there might be a "CPU slab" page, partially or
For performance reasons, SLUB doesn't keep all slabs on shared lists and
doesn't always free slabs immediately after all objects are freed. Namely:
- for each cache and cpu, there might be a "CPU slab" page, partially or fully
free
- with SLUB_CPU_PARTIAL enabled (default y), there might be a
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