RE: [外部邮件] Re: [PATCH] sched/fair: Optimize CPU iteration using for_each_cpu_and[not]

[Li,Rongqing]

> > Replace open-coded CPU iteration patterns with more efficient
> > for_each_cpu_and() and for_each_cpu_andnot() macros in three locations.
> >
> > This change both simplifies the code and provides minor performance
> > improvements by using the more specialized iteration macros.
> >
> 
> TBF I'm not sure it does improve anything for the SMT cases considering we
> don't see much more than SMT8.
> 
> The task_numa_find_cpu() one I do agree makes things better.
> 
> > Signed-off-by: Li RongQing <lirongqing@xxxxxxxxx>
> 
> Reviewed-by: Valentin Schneider <vschneid@xxxxxxxxxx>


Ping 

Thanks

-Li