Re: [PATCH] Repost sched-rt: Reduce rq lock contention by eliminating locking of non-feasible target

[Tim Chen]

On Tue, 2015-01-06 at 20:30 +0100, Peter Zijlstra wrote:
> On Tue, Jan 06, 2015 at 11:01:51AM -0800, Tim Chen wrote:
> > Didn't get any response for this patch probably due to the holidays.
> > Reposting it as we will like to get it merged to help our database
> > workload.
> > 
> > This patch added checks that prevent futile attempts to move rt tasks
> > to cpu with active tasks of equal or higher priority.  This reduces
> > run queue lock contention and improves the performance of a well
> > known OLTP benchmark by 0.7%.
> 
> Don't immediately see anything wrong with this, Steve?

Steve, do you have any objections to this patch?  Thanks.

Tim


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/