Messages in this thread | | | From | Jesse Barnes <> | Subject | Re: [PATCH] reduce inter-node balancing frequency | Date | Thu, 15 Jul 2004 20:38:32 -0400 |
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On Thursday, July 15, 2004 8:14 pm, Martin J. Bligh wrote: > > Nick, we've had this patch floating around for awhile now and I'm > > wondering what you think. It's needed to boot systems with lots (e.g. > > 256) nodes, but could probably be done another way. Do you think we > > should create a scheduler domain for every 64 nodes or something? > > I think that'd make a lot of sense ...
Yeah, though a smaller number of nodes would probably make more sense :)
> > Any other NUMA folks have thoughts about these values? > > Yeah, change them in arch specific code, not in the global stuff ;-)
What, you mean we're the only ones with 256 nodes?
> But seeing as they're dependant (for you) on machine size, as well as > arch type, you probably need to do something cleverer in > arch_init_sched_domain
Ok, I'll check that out.
> But the big bugaboo is arch-specific vs general ... we need to break > opteron vs i386 vs ia64 out from each other ... they all need different > coefficients. > > If you were going to be really fancy, we could do it in common code off > the topology stuff ... but for now, I think it's easier to just set 'em > per arch ...
We may have enough information to do that already... I'll look.
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