Messages in this thread | | | Date | Mon, 5 Mar 2001 10:41:18 -0800 | From | Jonathan Lahr <> | Subject | Re: kernel lock contention and scalability |
| |
Manfred Spraul [manfred@colorfullife.com] wrote: > > > lock contention work would be appreciated. I'm aware of timer scalability > > work ongoing at people.redhat.com/mingo/scalable-timers, but is anyone > > working on reducing sem_ids contention? > > Is that really a problem? > The contention is high, but the actual lost time is quite small.
I agree it isn't a major performance problem under that workload. But, I thought since the contention was high that other workloads which may utilize it more might have shown it to be a significant problem.
> I've attached 2 changes that might reduce the contention, but it's just > an idea, completely untested.
Thanks for the insight into the sempahore subsystem and the suggested fixes.
-- Jonathan Lahr IBM Linux Technology Center Beaverton, Oregon lahr@us.ibm.com 503-578-3385
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |