Hello Peter, On 6/2/2023 12:24 PM, Peter Zijlstra wrote: > On Fri, Jun 02, 2023 at 10:43:37AM +0530, K Prateek Nayak wrote: >> Grouping near-CCX for the offerings that do not have 2CCX per CCD will >> prevent degenration and limit the search scope yes. Here is what I'll >> do, let me check if limiting search scope helps first, and then start >> fiddling with the topology. How does that sound? > > So my preference would be the topology based solution, I agree that is much cleaner but workloads rarely like clean solutions nowadays :) > since the search > limit is random magic numbers that happen to work for 'your' machine but > who knows what it'll do for some other poor architecture that happens to > trip this. > > That said; verifying the limit helps at all is of course a good start, > because if it doesn't then the topology thing will likely also not help > much. Queued some tests on NPS2/4, and also with the "nr = 4" heuristic. I'll share the results once they finish. -- Thanks and Regards, Prateek
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