Re: [PATCH 1/2] mm: hugetlb: add hugetlb_alloc_threads cmdline option

[Matthew Wilcox]

On Fri, Feb 21, 2025 at 02:49:03PM +0100, Thomas Prescher via B4 Relay wrote:
> Add a command line option that enables control of how many
> threads per NUMA node should be used to allocate huge pages.

I don't think we should add a command line option (ie blame the sysadmin
for getting it wrong).  Instead, we should figure out the right number.
Is it half the number of threads per socket?  A quarter?  90%?  It's
bootup, the threads aren't really doing anything else.  But we
should figure it out, not the sysadmin.