Messages in this thread | | | Date | Fri, 29 Jun 2012 18:05:10 +0200 | From | Johannes Weiner <> | Subject | Re: [PATCH v2] KSM: numa awareness sysfs knob |
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On Fri, Jun 29, 2012 at 01:49:52PM +0200, Petr Holasek wrote: > Introduces new sysfs boolean knob /sys/kernel/mm/ksm/merge_nodes > which control merging pages across different numa nodes. > When it is set to zero only pages from the same node are merged, > otherwise pages from all nodes can be merged together (default behavior).
Is it conceivable that admins may (in the future) want to merge only across nodes that are below a given distance threshold?
I'm not asking to implement this, just whether the knob can be introduced such that it's future-compatible. Make it default to a Very High Number and only allow setting it to 0 for now e.g.? And name it max_node_merge_distance (I'm bad at names)?
What do you think?
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