Re: [RFC PATCH v1 0/4] hugetlb: parallelize hugetlb page allocation on boot

David Hildenbrand
2023-11-23T14:10:58Z

On 23.11.23 14:30, Gang Li wrote:
> From: Gang Li <ligang.bdlg@bytedance.com>
>
> Inspired by these patches [1][2], this series aims to speed up the
> initialization of hugetlb during the boot process through
> parallelization.
>
> It is particularly effective in large systems. On a machine equipped
> with 1TB of memory and two NUMA nodes, the time for hugetlb
> initialization was reduced from 2 seconds to 1 second.

Sorry to say, but why is that a scenario worth adding complexity for /
optimizing for? You don't cover that, so there is a clear lack in the
motivation.

2 vs. 1 second on a 1 TiB system is usually really just noise.

--
Cheers,

David / dhildenb