[PATCH v3 00/15] mm/memory: optimize fork() with PTE-mapped THP

David Hildenbrand david at redhat.com
Wed Jan 31 04:59:56 PST 2024


>>
>> I'm also surprised about the dontneed vs. munmap numbers.
> 
> You mean the ones for Altra that I posted? (I didn't post any for M2). The altra
> numbers look ok to me; dontneed has no change, and munmap has no change for
> order-0 and is massively improved for order-9.


I would expect that dontneed would similarly benefit -- same code path. 
But I focused on munmap measurements for now, I'll try finding time to 
confirm that it's the same on Intel.

-- 
Cheers,

David / dhildenb




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