Re: [tbench regression fixes]: digging out smelly deadmen.

Evgeniy Polyakov
2008-10-10T13:25:44Z

On Fri, Oct 10, 2008 at 01:40:42PM +0200, Ingo Molnar (mingo@elte.hu) wrote:
> make sure you have this fix in tip/master already:
>
> 5b7dba4: sched_clock: prevent scd->clock from moving backwards
>
> Note: Mike is 100% correct in suggesting that a very good cpu_clock() is
> needed for precise scheduling.

The last commit is 5dc64a3442b98eaa and aforementioned changeset was included.
Result is quite bad:

vanilla 27: 347.222
no TSO/GSO: 357.331
no hrticks: 382.983
no balance: 389.802
tip: 365.576

--
Evgeniy Polyakov