Re: [PATCH 0/3] slab: support memoryless nodes with sheaves

["Vlastimil Babka (SUSE)" <vbabka@kernel.org>]

On 4/8/26 15:04, Jon Hunter wrote:
> Hi Vlastimil,
> 
> On 11/03/2026 17:22, Vlastimil Babka (SUSE) wrote:
> 
> 
> I have also observed a performance regresssion for Linux v7.0-rc for 
> some graphics related tests we run. I bisected to ...
> 
> # first bad commit: [e47c897a29491ade20b27612fdd3107c39a07357] slab: add 
> sheaves to most caches
> 
> I came across Ming's report and hence, found this series. I have also 
> tested the 3 patches in this series and it did appear to help with one 
> test, but overall I am still seeing a ~25% performance regression (the 

Hm with the numactl output you posted, such configuration shouldn't be
affected by this series at all, so wonder if it's just noise.

> tests are taking about 25% longer to run). I am not the owner or author 
> of these specific tests and I have not dived into see exactly what is 
> taking longer, but I just know they are taking longer to run.

Are the tests available somewhere you can point us to?

Thanks,
Vlastimil

> Anyway, I have not seen any recent updates on this, and so I am not sure 
> if there are any other updates or what the current status of this is?
> 
> If there are any more patches available I will be happy to test.
> 
> Thanks!
> Jon
>