Re: [RFC PATCH v2 0/5] hugetlb: parallelize hugetlb page init on boot

From: David Rientjes
Date: Thu Dec 21 2023 - 23:33:51 EST


On Mon, 18 Dec 2023, Gang Li wrote:

> Hi,
>
> On 2023/12/13 08:10, David Rientjes wrote:
> > On 6.6 I measured "hugepagesz=1G hugepages=11776" on as 12TB host to be
> > 77s this time around.
>
> Thanks for your test! Is this the total kernel boot time, or just the
> hugetlb initialization time?
>

Ah, sorry for not being specific. It's just the hugetlb preallocation of
11776 1GB hugetlb pages, total boot takes a few more minutes.

> > A latest Linus build with this patch set does not boot successfully, so
>
> Which branch/tag is it compiled on?
> I test this patch on v6.7-rc4 and next-20231130.
>

It was the latest Linus tip of tree. I'll continue to try again until I
get a successful boot and report back, serial console won't be possible
for unrelated reasons.