* Subhra Mazumdar <subhra.mazum...@oracle.com> wrote:
> I see similar improvement with this patch as removing the condition I
> earlier mentioned. So that's not needed. I also included the patch for the
> priority fix. For 2 DB instances, HT disabling stands at -22% for 32 users
> (from earlier emails).
>
>
> 1 DB instance
>
> users baseline %idle core_sched %idle
> 16 1 84 -4.9% 84
> 24 1 76 -6.7% 75
> 32 1 69 -2.4% 69
>
> 2 DB instance
>
> users baseline %idle core_sched %idle
> 16 1 66 -19.5% 69
> 24 1 54 -9.8% 57
> 32 1 42 -27.2% 48
So HT disabling slows down the 2DB instance by -22%, while core-sched
slows it down by -27.2%?
Would it be possible to see all the results in two larger tables (1 DB
instance and 2 DB instance) so that we can compare the performance of the
3 kernel variants with each other:
- "vanilla +HT": Hyperthreading enabled, vanilla scheduler
- "vanilla -HT": Hyperthreading disabled, vanilla scheduler
- "core_sched": Hyperthreading enabled, core-scheduling enabled
?
Thanks,
Ingo
