Re: [tip:sched/eevdf] [sched/fair] e0c2ff903c: phoronix-test-suite.blogbench.Write.final_score -34.8% regression

[Chen Yu]

On 2023-08-22 at 14:48:50 +0800, Chen Yu wrote:
> Hi Peter, Mike,
> 
> On 2023-08-18 at 09:09:29 +0800, Chen Yu wrote:
> > On 2023-08-16 at 15:40:59 +0200, Peter Zijlstra wrote:
> > > On Wed, Aug 16, 2023 at 02:37:16PM +0200, Peter Zijlstra wrote:
> > > > On Mon, Aug 14, 2023 at 08:32:55PM +0200, Mike Galbraith wrote:

[snip...]

> Reducing the spinlock contention could help improve the situation.
> Feng Tang told me that there is a discussion on the LKML related to high
> slub spinlock contention[2]. And Feng provides a hack patch which

The discussion is at
https://lore.kernel.org/all/ZL+R5kJpnHMUgGY2@feng-clx/

thanks,
Chenyu