Messages in this thread | | | Date | Thu, 13 Feb 2020 11:31:08 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 08/11] sched/numa: Bias swapping tasks based on their preferred node |
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On Wed, Feb 12, 2020 at 09:36:51AM +0000, Mel Gorman wrote: > When swapping tasks for NUMA balancing, it is preferred that tasks move > to or remain on their preferred node. When considering an imbalance, > encourage tasks to move to their preferred node and discourage tasks from > moving away from their preferred node.
Wasn't there an issue for workloads that span multiple nodes?
Say a 4 node system with 2 warehouses? Then each JVM will want 2 nodes, instead of a single node, and strong preferred node stuff makes it difficult to achieve this.
I forgot how we dealt with these cases, just something I worry about when reading this.
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