On Tue, Apr 05, 2005 at 05:33:49PM +1000, Nick Piggin wrote: > Andrew Morton wrote: > > > +sched-remove-unnecessary-sched-domains.patch > > +sched-improve-pinned-task-handling-again.patch > [snip] > > > > CPU scheduler updates > > > > It is no problem that you picked these up for testing. But > don't merge them yet, please. > > Suresh's underlying problem with the unnecessary sched domains > is a failing of sched-balance-exec and sched-balance-fork, which
That wasn't the only motivation. For example, on non-HT cpu's we shouldn't be setting up SMT sched-domain, same with NUMA domains on non-NUMA systems. > I am working on now. > > Removing unnecessary domains is a nice optimisation, but just > needs to account for a few more flags before declaring that a Can you elaborate when we require a domain with special flags but has no or only one group in it. > domain is unnecessary (not to mention this probably breaks if > isolcpus= is used). I have made some modifications to the patch I have tested my patch with "ioslcpus=" and it works just fine. > to fix these problems. > > Lastly, I'd like to be a bit less intrusive with pinned task > handling improvements. I think we can do this while still being > effective in preventing livelocks. We want to see this fixed. Please post your patch and I can let you know the test results. > > I will keep you posted with regards to the various scheduler > patches. Nick, Can you post the patches you sent me earlier to this list? thanks, suresh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
